BIOS boot modes, something that is so long standing in the IT industry which never changes, it had a single option which was the BIOS boot mode. The usual blue screen that only works with a keyboard and not a mouse, the blue screen that you have to access from the black screen on boot usually by repetitively tapping on either the F10, F2, F12, F1 or DEL key, depending on your motherboards manufacturer. Simple right? No. It’s an absolute nightmare.
But hey, we’ve got a newer and upgraded version of BIOS, and it’s called UEFI. UEFI was actually launched officially as a standard back in 2006 believe it or not. The time from when a standard is launched vs how quickly this moves throughout the IT hardware manufacturers is often measured in years, not months or days. So actually this is a fairly ‘new’ thing and many consumer hardware manufacturers only started to phase this technology into their systems around 2017.
The whole point of UEFI is the concept of Firmware-as-a-Service which is focused around extensibility rather than fixed approaches. What this means is that UEFI is designed to allow the utilisation of large disk partitions of over 2TB in size along with a modular design which enables both backwards and forwards compatibility.
Fundamentally the difference between BIOS and UEFI comes down to the link between the hardware and boot loader layer on your drives and bootable devices connected to your system. Think of this kind of like the ‘Construct Program’ in The Matrix – you can load whatever you want, given the constraints of the system.
In the real world what this means is that traditional BIOS systems are based on a more simplistic limited memory/capacity systems of computer chips. Whereas UEFI is capable of operating on systems that have more advanced hardware chips within their systems. Hardware and software are intricately linked. UEFI stands for Unified Extensible Firmware Interface.
One of the huge benefits from a user perspective is that within UEFI you can actually use your mouse to control the system rather than everything being keyboard driven in the Legacy BIOS system. Beyond that, you are probably never going to need to worry about these differences – that is until something doesn’t work as you expect in relation to a piece of hardware not booting correctly. This is where things are a bit messy and it’s going to take likely another decade until things fully iron their self out.
As a general rule of thumb, for modern hardware, just use UEFI to Boot. For older hardware or older operating systems, you may have to use Legacy Boot to get the machine to boot up successfully.
Rather than re-invent the wheel, here is a handy source of the core differences between Legacy Boot mode and UEFI Boot mode;
What is a difference between UEFI and Legacy Boot settings;
- Legacy is traditional and very easy method which had worked absolutely fine so far.
- UEFI is critical, 1709 was the first perfect OS which worked best with the OS.
- Legacy has best in performance had minimum boot issues and easiest to install.
- UEFI is now stable, but yet most of the IT tech do not now how to use this feature and correctly install the OS.
- Legacy was safe and secure and very user friendly, it is just that you can select the boot device which you want to boot from and it search for Master Boot Record MBR and used to pick it up.
- UEFI is market as more secure but there is no more security just that it supports TPM which enables Bitlocker and has extra headache to mention the EFI boot manager, which is no secure if you have access to BIOS and did it few times earlier just like Legacy.
- Legacy has maximum partitioning size of 2 Terabyte.
- UEFI has partitioning size of 9 Zetabyte which is huge.
- Legacy can have 4 Primary Partition.
- UEFI can have 128 Primary Partitions.
- Legacy is good for loading 2 OS on same system.
- UEFI is Great for loading more than 2 OS on the single system.
- There are more differences and UEFI is way beyond the Legacy BIOS technology but it has not yet revealed its troe power.
- Legacy uses Master Boot Record.
- UEFI uses GUID Partition Table.
- Legacy is traditional Firmware which interacts with Motherboard and OS.
- UEFI is also just a Firmware with advanced options.
- Microsoft New OS will no more support Legacy they have transformed now.
- Microsoft stop support for Legacy OS after launch of 1709 WIndows update.
- The last best Hard Drive supported by Legacy BIOS is SATA SSD.
- The Last Best Hard Driver supported by UEFI is M.2 PCIE SSD Hard drive which does not work on Legacy BIOS.
- Legacy Supports the SSCM in traditional way like you can enable PXE boot and select option to Boot From Network through LAN.
UEFI also supports and enable options to boot from traditional network which is IPV4 as well as IPV6. UEFI firmware is keeping all possibility of future options. To enable it you need to enable UEFI Network Stack which will give option for IPV4 and IPV6.
Ok, so you’ve got yourself a nice new Ubiquiti UniFi AP-AC-Lite Wireless Access Point to modernise your network – Awesome. If you are still in the research stage, then take a look through a recent blog post about Unboxing and Testing the Ubiquiti UniFi Access Point AP-AC-Lite so at least you can see what you get in the box and some of the awesome reporting statistics that you can see once you have the device up and running. We’re not going to be covering the topics that are covered in that blog post, we’re going to assume you’ve got it out of the box and have plugged it in then we can look at how to actually get it set up on your network – since plugging the device in itself isn’t enough with UniFi equipment.
First Plugin of UniFi AP-AC-Lite Wireless Access Point
Ok, so now you’ve plugged your device into your network, it’s time to bring the device onto your network. What I mean by that is that just because you’ve plugged the device in, unlike many other IT network hardware equipment where you plug it in and it’s automatically available for use without configuration (albeit, without configuration certain manufacturers and devices would cease to work anyhow…), with the UniFi equipment you need to officially welcome it onto your network as a trusted device. This process is called the Adoption process.
Once you’ve got the device plugged in, you’ll notice that the physical device has a solid white light on, then turns to a flashing white light for a minute or so, then turns back to a solid white light. What this means is that your device is not yet adopted by your network.
And here’s what that looks like in your UniFi Controller Software. If you aren’t sure what that is, we’ve done a few other blog posts that cover this off in a bit more detail including How to Setup a Ubiquiti UniFi Managed Switch On Your Network so take a read over that if you haven’t yet got your UniFi Controller Software set up and running.
In the above image you can see there are two wireless access points on the network, one that has already been adopted and one that is yet to be adopted so you can see the difference for how the devices display.
Adopt the UniFi AP-AC-Lite Wireless Access Point Device
To welcome your new device onto your network officially simply click onto the device that is pending adoption which will open a pop out window as can be seen below;
Simply click on the Adopt button to get started. Once you’ve done this, you’ll notice the status of the device turn to a blue light and within the UniFi Controller Software the device will switch to Pending Adoption, then Provisioning. Once it’s done you’ll notice the device is ready to go;
Then you’ll notice that your device is ready to go within the UniFi Controller Software too. The device doesn’t have a green light beneath it as there are no connected wireless clients connected to the device yet.
One point to note is that if you’ve just received your UniFi Wireless Access Point, then it’s highly likely that there are some updates waiting for you to install on the firmware itself. You’ll notice a little icon in the top right of the device in the above image (not shown, as all devices are up to date) so just click on that and get your devices up to date. There is always going to be the natural lag between when the firmware was originally installed at the manufacturing plant to when it arrives on your doorstep. So thankfully with smart software technology and smart devices you can easily bring your devices up to date with ease. Traditional legacy network hardware often isn’t as smart with this, although many do try to have some form of notification that there are firmware updates ready for installation, once you can find the hidden notification in the system.
Configure a Wireless Network
Now that you’ve got your devices connected, you need to create yourself a wireless network. Out of the box you don’t get a wireless networks configured, you need to configure this yourself. This mainly consists of two parts;
- Creating an SSID, aka. a Service Set IDentifier, or more commonly known as the broadcast name of your wireless network like what you see when you try to connect to local wireless networks, it’s the name that identifies itself
- Giving your wireless network a password so that your users can connect securely
To do this, simply navigate to your Settings page (bottom left of the UniFi Controller Softwre, the Cog icon). And you’ll be able to create a wireless network within there. For simplicity in this blog post we’re going to just look at a LAN, so no VLANs and complex Profiles etc. Just so you can get up and running quickly. Top tip – Switch to the Classic Settings user interface as at the time of writing, this still supports more features and functionality. You’re probably fine with basic networks using the more modern interface, but you’ll soon find that basic networking infrastructure settings are invisible in the modern interface at the moment, they will be coming in due course though.
And before anyone points out the obvious…. Yes, give your wireless network (SSID) a decent name and don’t choose ‘password123’ as the security key. Also you probably don’t want to select the option to be an Open network from a Security perspective. This is rarely a good idea, and even when you’re using secure VLANs, you should really consider this from a business perspective before providing open, free and inconspicuous WiFi connectivity as there are legal considerations you need to make. But anyhow that’s for another conversation at another time, so for now, that’s how you set up a basic wireless network for your UniFi AP-AC-Lite Wireless Access Point device (and any other similar models…). Once you’re done with this, you’ll then be able to connect to your wireless network from any devices within range. Simple.
Awesome, you’re good to go! We’re going to keep this blog post simple and not cover anything related to VLANs or managed switches and unmanaged switches. We’ve covered some of these topics before and we’ll be covering some of the other topics in the near future. For now, you’re all set up with your Ubiquiti UniFi AP-AC-Lite Wireless Access Point so you’re good to start using it.
Hopefully this blog post has been useful to get you up and running with a very basic network configuration using the Ubiquiti UniFi AP-AC-Lite Wireless Access Point on your network. There are many different models from the UniFi range that this same logic applies to for your UniFi Wireless Access Point devices, so this isn’t really specific to this model.
I wanted to do a quick unboxing blog post on the Ubiquiti UniFi Access Point, AP-AC-Lite, so that you know what you’re getting when you make the purchase. This will be a fairly quick blog post.
UniFi Access Point AP-AC-Lite Unboxing
First of all, one thing that really stands out with the quality of the box, how well packaged the device is inside the box and just the general feel of all the hardware your are touching, it just feels good quality. You know what I mean by this if you’ve handled a lot of different computer and network hardware, you can really tell how well something is made just by having a good touch and feel of it.
The UniFi AP-AC-Lite model from UniFi is their basic entry level access point which is designed for smaller number of clients accessing the access point. The reality is that there is no hard and fast rule for how many clients any access point can handle, you have to use your judgement on this based on the information you have at hand. And even then, you’ll probably get it wrong at times even with lots of experience – and that’s just the reality of working with IT hardware, sometimes you need to adjust depending on the reality of your use case in the real world.
One thing that is very noticeable when you get the UniFi Access Point AP-AC-Lite is that the box just feels nice. It feels extremely good quality from both the weight and the texture. It’s clear that they have thought a lot about these products right from the outset – even before opening the box.
What you’ll notice in the image below is some of the core components that are waiting for you inside the box itself. You’ll find the UniFi UAP AC Life device itself along with a ceiling/wall mounting kit (including screws) plus a very handy Gigabit Power over Ethernet (PoE) adapter which can come in very useful if you haven’t got PoE capable switches (or capacity!) for where you are planning on connecting your UniFi access point to. Quite handy to know is that this UAP AC Lite device is capable of reaching a range of up to 122 meters, aka. 400ft. For larger distances, the Ubiquiti UniFi range of hardware has better devices capable of broadcasting over longer ranges. Always be sure to know as much as you can about the variety of UniFi hardware available prior to making a purchase. Speak to your knowledgeable expert on the topic.
What is a nice little touch on how the UniFi AP-AC-Lite device is boxed up is the Amazon/USA style rip-to-open outer packaging. It is a nice feel that you are opening a product that is being delivered. This being said, it’s a huge hope that what is being delivered is suitable for your specific needs. Once opened, the returns policy is going to be very dependent on the local distributor from whom you purchased the device from. Most IT hardware suppliers are happy for you to return hardware as long as it is in a re-saleable condition, and unfortunately this is the only one slight drawback we have about this packaging, that is isn’t re-saleable due to the outer packaging design. But hey, the UniFi AP-AC-Lite Wireless Access Point works so well, that it’s unlikely that you’ll be returning this anyhow.
Inside the Box for the UniFi AP-AC-Lite Device
Ok, so here’s what we’re presented with once we’ve unpackaged the UniFi AP-AC-Lite wireless access point device. Just to re-iterate, the packaging between the boxed version above and the unboxed version below is extremely well packaged. Super compact and extremely well packaged to manage the terrains of product transit through the worst of delivery companies.
What you’ll notice above is that we’ve got several core items within the product box;
- USA Plug Adapter – Great if you’re USA based, but not so great if you’re UK Based. Thankfully our supplier for IT hardware equipment clearly has an arrangement in place with UniFi to supply a UK Based Plug for the device. Same UniFi branding / look / feel. Not sure if this is standard, but it’s just something to keep in mind when purchasing this IT hardware and equipment.
- UniFi Power over Ethernet (PoE) Device – This is the device that the above power adapter plugs into. This is potentially a device that you need. And this is because it depends if your managed switch supports PoE technology. Some devices support this heavily, others partially, and others simply don’t support PoE at all – hence why this device is often required in your setup. Personally I think that UniFi could significantly reduce the cost of their product by not shipping this device to their customers. A basic How-To guide for pre-purchase activities to enable customers to understand what they need to purchase under what circumstances would significantly help with this. I’d estimate that this would easily save £15 – £25 off the product cost if they were to implement a more structured purchasing process. Buy hey, I’ll leave that with them, if they want to reach our to me to discuss this business operational improvement then they are more than willing to do so.
- UniFi AP-AC-Lite Device itself – Kind of self-explanatory
- Mounting Point – This is actually quite a nice device that let’s you easily secure your device to the wall or ceiling. As you’ll see later there is a handy detachable panel beneath the UniFi AP-AC-Lite access point that allows you easily connect this panel to the panel that attaches to the wall.
- Screws and Wall/Ceiling Plugs – Very handy so that you don’t have to source the specific sizes/lengths/width of screws and wall plugs to get the device attached to the location that you are looking to get this attached to. The reality is that these default screws are only a best guess, so it’s highly likely that you will need to source the specific screws and plugs that are relevant to where you are attaching the device to. But it’s a nice touch from Ubiquiti for common use cases.
The Ubiquiti UniFi AP-AC-Lite Device;
The device only has a single port and that is the RJ-45 port that allows you to connect the device to your network. And this is important as we briefly touched on earlier. This very much depends on if your network, or more importantly your managed switch, can support Power over Ethernet PoE technology or not. Depending on your answer to this question to yourself, you should be able to assess how this device is plugged into your network.
One handy feature is the small notch in the edge of the device that allows the ethernet cable to fit in the notch so the device can lay flat against your wall or ceiling.
One item to note around how the inner disk connects to the main device is that once it is in place, it’s very tight to remove. When you are removing this when it isn’t wall mounted, this isn’t really an issue as you can easily get a small screwdriver or knife to unclip it. But you’ll notice that once this is connected to the wall or ceiling, you’ve only got a really tiny gap to get something in that is about 2mm tall, 5mm wide, and about 1cm deep – so you’ll probably need something like a paperclip to unhinge this once it’s connected to the wall.
Below you’ll see the Power over Ethernet (PoE) device.
For connecting your PoE device to your UniFi AP-AC-Lite wireless access point, you’ll need to make sure you plug the ethernet cable into the PoE port on the left as that one contains power. The LAN port is where you plug in your ethernet cable that connects to your switch or router or firewall. If you have a managed switch with PoE ports, then you don’t even need to use this device unless you’re running our of power availability. But it’s nice that they have this as an option straight out of the box for you.
Another USA power lead going onto eBay…. 🙂
Ok, so that’s all the contents of the box for your new UniFi AP-AC-Lite wireless access point.
Statistics and Data from UniFi AP-AC-Lite Wireless Access Point via UniFi Controller
For completeness, let’s look at some of the handy bits of data that you can see within your UniFi Controller software against your wireless access point once you’ve got it plugged in and configured.
WiFi Traffic Distribution Statistics
WiFi Experience Statistics
WiFi Clients Chart
Time to Associate Graph
Showing Devices Connected to wireless access point
RF Environment 5G Statistics
RF Environment 2G Statistics
Access Point Retry Rate Chart
Dropped Packets Chart
CPU and Memory Usage Chart
Connected Clients Statistics
Channel Utilisation Statistics
This is a really handy piece of information from a planning perspective. You can easily use this information to plan your capacity based on real world usage. As you start to reach the higher limits of the hardware, it’s time to start planning an upgrade to hardware that is better suited to larger numbers of users. For context, the chart below is with a single mobile device connected.
Association Failures Statistics
2G WiFi Charts – Channel Utilisation, Dropped Packets, Retries
5G WiFi Charts – Channel Utilisation, Dropped Packets, Retries
Hopefully that gives you a good idea about what’s in the box and what’s out of the box once you’ve got everything set up and configured within your network.
In this blog post we’re going to look at how to setup a UniFi managed switch on your network. For simplicity and to help people get started we’re going to assume that this is the first managed switch you are looking to add into your network. We’re also going to assume you’ve got commercial grade modem and router hardware, none of the consumer grade stuff that just doesn’t really work for these types of commercial type setups.
Basic Network Architecture for a UniFi Managed Switch
Ok so let’s assume you’re new to all this networking malarkey, we’re going to take you through how to setup a Ubiquiti UniFi managed switch so you can adopt this on your network. For the purpose of this blog post we’re going to use a very basic base level architecture;
As you can see in the image above, the managed switch is bang in the centre. This is the Ubiquiti UniFi managed switch. Before we jump into how to get this set up and plugged into your network, if you aren’t sure about the differences, then we’ve done a blog post so you can easily understand What is the Difference Between a Managed Switch VS an Unmanaged Switch, have a read over that if you need a refresher.
Physical Ubiquiti UniFi Managed Switch Hardware
What we are working with here is basically this device;
First of all, to get started simply plug the managed switch into your network. We’re assuming here that you’re currently working with a flat network so everything can see everything. You’re going to need to make sure you’re plugging the managed switch into the correct part of your network if you’re already got other managed switches and VLANs set up all over the place. But we’ll skip over that added complexity for the purpose of simplicity in this blog post.
Check UniFi Managed Switch is Showing in Firewall/Router
Ok, so now you’re plugged in, you need to head over to your Firewall/Router Admin screen and view the devices on the network. This is usually under a DHCP Leases type page within the admin interface. If you aren’t sure how to access your Firewall/Router admin interface, it’s highly likely to be either 192.168.0.1 or 192.168.1.1 which are fairly standard across a range of firewalls and routers. Simply type that into your web browser and you should be presented with a login screen. If you haven’t accessed this before (highly unlikely if you’re reading this blog post…. But for the purpose of completeness…) then just Google what the default username and password is for your specific device.
Once you’ve found the IP address of the device you’ve just added, excellent. You now know that the device is on the network;
Understanding the UniFi Controller Architecture
Now what is interesting with Ubiquiti UniFi managed switches is that if you type the IP address of your managed switch into the web browser, nothing happens. Nothing loads. And this is because the Ubiquiti UniFi hardware works differently than the vast majority of other networking hardware in the sense that we configure everything via an external piece of software called the Ubiquiti UniFi Controller. This is a piece of software that lives on a separate device such as your laptop or desktop computer. Here’s what this looks like to visualise how all this interacts;
What we are looking at here, the black lines shows how everything is plugged in. The blue lines show how the process works for managing your UniFi managed switch. Pretty cool really, and this architecture of how all this works is one of the reasons that UniFi is completely blowing things away in the market with how there are designing and managing their networking hardware to make your life as easy as possible. Whether you are a small office/home office user or working up towards medium and large sized businesses. The Ubiquiti kit really is amazing.
Install and Open UniFi Controller Software
Ok, so once you’ve downloaded the Ubiquiti UniFi Controller Software and installed it on your computer. Simply run the software (Windows Start Menu > Ubiquiti UniFi > UniFi);
Click the button to launch the site in the browser. If this is the first time you’re doing this, you’re going to need to go through the registration process. The browser will open the URL, https://localhost:8443/manage/account/login. You will get a certificate error but just ignore that if you are on a secure network, which it is highly likely that you will be if you are doing this type of work.
Once the web browser opens you will be presented with a login screen;
You’ll notice there isn’t a registration button here. If you don’t already have an account then you’ll need to create a Ubiquiti UniFi account here, https://account.ui.com/register. Once you’ve created your account, you will then be able to login to your device. For the purpose of simplicity in this blog post, we are going to assume that you are not using a UniFi Cloud Key. First of all, the UniFi Cloud Keys are an awesome piece of tech that allows you to easily manage your network completely remotely. This comes in extremely handy for IT managed service providers like ourselves who manage the network infrastructure on behalf of clients. We’ll cover that off in a different topic though at a later date.
View Current UniFi Network
Once you’re logged in you will land on the dashboard;
You’ll notice in the picture above that there is nothing there, you have no UniFi devices on your network. Sounds odd at first since you have your UniFi managed switch plugged in, but there is a reason why it is not showing up in your network yet and we’ll look at that now.
Adopt UniFi Managed Switch to Your Network
Firstly, you know you’ve just plugged in a UniFi managed switch into you network, so let’s click on the Switches icon;
What you’ll notice when you click into that page is that the UniFi managed switch is now showing, but it is showing at the Pending Adoption stage;
Device Adoption is simply the process of connecting a UniFi device to your UniFi Controller Software so that you can manage it accordingly. You can read more about that here if you are interested. Just before we jump into adopting the device. A couple of nice little features within the UniFi dashboard are worth pointing out. Firstly, the Events button in the left navigation, the one that looks like a calendar icon with an * in the middle. Here you can see the exact date and time you plugged the UniFi managed switch into your network;
The fact that the software has automatically detected this and logged this event is pretty awesome, particularly for both auditing and debugging purposes. The one of the core benefits of the UniFi Controller Software is to ensure you can’t just go plugging hardware into your network and having that hardware automatically work. The UniFi platform can help to protect you from that attack vector.
So back to the previous image. Click on the managed switch that is pending adoption. You’ll notice a pop out appear;
Then you will see that the managed switch moves through to the Adopting stage, this means that the managed switch is being adopted by your UniFi Controller Software so that it can be managed;
Next you will see the status move through to the Provisioning status. The provisioning status means that the device is in the process of applying updates and/or changes to the configuration and will temporarily reboot so the changes take effect. In this specific example, this makes no real difference as you are just getting setup but in any real world scenario this can result in a momentary blip in the connectivity for your users. Depending on your wider network configuration, you may need to schedule these types of activities to happen at times of low network activity. This is a very difficult thing to balance in corporate environments as you’ll generally find that backups and similar activities are also happening at off-peak times so you really need to fully understand your network and infrastructure architecture at all levels to be able to safely perform these activities. Otherwise, you’re just acting on a “click and hope” mentality. For a single managed switch setup that we’re working through here, this is not really an issue either way. But for larger networks you really need to understand which configuration changes have propagated through to each and every device on the network. If you are getting issues with provisioning configuration settings on specific devices this is really going to screw with your network and cause lots of random problems all over the place.
Once this is complete, you’ll start to see your devices listed as being in the Connected status;
What is interesting in the image above is that you’ll notice that this port diagram exactly represents the port connectivity in the photograph from the very start of this blog posts that shows you how you have connected your physical UniFi managed switch into your network. This is showing you your physically connected ports in a digital view to help you visualise what is currently connected and what availability you have for future planning. While not that relevant for this blog post, it’s worth noting that this is a very handy feature particularly for larger networks spanning multiple geographical locations, knowing what is plugged in where and how this is all configured is extremely valuable so you can plan for future growth and projects as your networking needs expand.
Once you’ve done you’ll notice that your network on your dashboard now looks like the following;
UniFi Cloud Connectivity
What is interesting once you’ve logged into your local UniFi Controller Software locally is that if you view your UniFi account on the UniFi website, you’ll notice the exact same details listed. This is extremely handy to see what is happening on your local network from anywhere in the world. The reality is though is that this functionality is only
In the above image you’ll notice a “Launch” action on the right hand side. What this does is it enables a connection from the UniFi cloud platform straight through to the computer that is running the UniFi Controller Software. Generally these things are powered by the powerful UPnP (Universal Plug and Play) Protocol. I’ve not dug into the details of how this specifically works for the UniFi kit, but I’m going to take an educated guess that it is highly likely that it is UPnP that is powering this functionality. Either way, awesome, as this is a cool piece of tech.
This functionality is basically what the UniFi Cloud Key does, the only difference being that the UniFi Controller Software doesn’t need to be running on your laptop, but instead there is basically a RaspberryPi-like device plugged into the network to perform this feature. The UniFi Cloud Key is actually very similar to how one of the products we’ve designed and built works, the GeezerCloud platform which monitors temperature controlled environments remotely with ease for companies including restaurants and food manufacturing businesses.
Back to looping at the specifics of the UniFi Cloud Platform and how this works though. Once you have clicked on the Launch option, you’ll notice that the UniFi cloud platform is completely aware of your local UniFi network as you have seen in previous images – the only difference is the URL that you are accessing this information from. If you understand what this means, you’ve probably got your eyes raised too as you realise how amazing this feature is. If you don’t understand what this means, add 10+ years to your career and it will sink in why this is so awesome – Apologies on that point but it is difficult at times to convey breakthrough moments in technology like this without understanding the technology stack in a serious way both wide and deep, that stuff only comes with years of experience and knowledge and can’t be easily conveyed in a basic blog post – but – if you have questions, do put them in the comments on this blog post to get the answers you seek.
Back again to once you’ve clicked that Launch button mentioned earlier. What you’ll notice is that once you’ve clicked that, the URL is on the UniFi Cloud Platform, yet it is displaying information from your local network exactly as if you were viewing the information via your locally installed UniFi Controller Software;
All Connected Now Time to Configure
Awesome, now your managed switch is part of your network you are good to start to configure it in the way you like. We’re going to stop this blog post here as the configuration elements of a network can get very detailed so we’ll pick that up in a future blog post.
There are so many different ways to configure your UniFi managed switch that this all depends on the entire network architecture and devices (both UniFi and non-UniFi) that you are working with throughout your network.
Hopefully this has been a useful insight and tutorial on how to set up a Ubiquiti UniFi managed switch on your network. This guide has been focused on a starting point from nothing, so if you are working with an established network, very similar principles apply, although you’ll need to take extra precaution and understanding of the wider network piece before randomly plugging an additional managed switch into your network.
This is one of the most misunderstood concepts when people start to get into the murky world of networking and computer networks. It’s no real surprise why there is so much confusion as the manufacturers confuse things further as it’s not always 100% clear when looking on certain websites whether a switch is managed or unmanaged. Then there is even more confusion since folks in IT like to just talk about ‘Switches’ as a general topic without being specific about which specific type of switch they are talking about. So hopefully by the end of this blog post you’ll have a good understanding of what the difference is between a Managed Switch and an Unmanaged Switch.
Baseline Physical Architecture
To help with discussions throughout this blog post, let’s look at common variations of a very basic network architecture.
In the above image we have given five basic examples of how the vast majority of Small Office or Home Office networks are set up. We’ve only included everything up to your core router/firewall in this example above to highlight some of the common setups that we see. This helps to pave the way for discussing Managed Switches and Unmanaged Switches as this is where things start to get a little more complex.
What is an Unmanaged Switch – Basic Concept
The basic concept of an unmanaged switch is that it is designed for ease of use to easily extend your network without worrying about networking. I say that in the sense that you can purchase an unmanaged switch and simply plug in the cables and everything magically works.
You can see an example of an unmanaged switch above, this is the Netgear ProSafe GS108 Unmanaged Switch. In this example, this is an 8-Port unmanaged switch. So let’s take a look at what that means for the baseline diagram.
In the above image you can see that all we’ve done here is place an unmanaged switch in between your laptop and your primary router. Simple. No configuration required, all you’ve had to do is to plug the cables in and you’re good to go. This is the beauty of unmanaged switches, they are extremely handy to use when you want to get additional devices connected into a single network. And this is an important point that we’ll come onto next. Granted in the above example, we don’t actually need an unmanaged switch for this to work as you could just plug your laptop directly into the router/firewall, or connect over WiFi. But the reality is that you likely have more than one device here so it can be beneficial to use unmanaged switches depending on the physical layout of your home office or small office to make your networking life as easy as possible.
The example we’ve looked at above is what is commonly referred to a as a Flat Network, meaning that every device that is plugged in is on the same network, meaning that every device can see and talk to every other device. Ok, it’s a little more complex than that as every end device generally has a level of protection built into that too, but you get the point. Ultimately though, what this means is that every device on the network can see the network traffic that is flowing through the network which is a large security risk for complex networks, and should be a serious consideration for any networks both small and large in the modern world we live in.
Take Internet of Things (IoT) devices as an example. The second you plug one of these into your network (or connect it wirelessly), then if that device becomes a target for attack, that single device can flood through your network and at best, ‘only’ snoop on all your internet traffic, and at worst, spread throughout your network and infect all your machines.
There are endless stories coming out daily about these types of attacks happening to businesses of all sizes. If you’re still in the mind set of ‘why would anyone target us?’ then you need to have a strong word with yourself and start taking security seriously. Anyhow, that rant over.
Hopefully you now understand why an unmanaged switch is called an unmanaged switch… because you don’t have to manage anything, it just works.
What is a Managed Switch – Basic Concept
Ok, so let’s compare all of the above with a Managed Switch. As you can probably guess, with managed switches…. You need to manage them, aka. Configure them to work in the way that you want them to. And this is where things get from zero complexity to 100x complexity as there are endless ways you can configure your managed switch depending on your use cases and network design.
Generally speaking managed switches are physically larger in size as can be seen in the image below which is a Ubiquiti UniFi 1 Port PoE Managed Switch.
You can get managed switches that are much smaller and of similar sizes and with varying levels of functionality which can make managed and unmanaged switches physically difficult to see the difference between them.
Most importantly about managed switches is that you now have to administer them. They don’t just work by plugging them in. You need to configure which physical ports on the managed switch are used for what purposes, and this all comes down to how you want your network to be configured.
The core difference between unmanaged switches and managed switches is that unmanaged switches do not receive an IP address that is visible within your firewall/router, whereas managed switches appear in your firewall/router with an IP address as can be seen below;
While the managed switch has an IP address, it doesn’t necessarily mean that you can pop the IP address into your web browser and login to it like you can do with your Router/Firewall. The reason for this is because this is totally dependent on how your managed switch works. Some managed switches, and particularly either older models or higher end enterprise clunky makes/models, you will find that you are presented with a user interface when you access the IP address into the web browser. And it likely looks like something that was built in the 1990s, maybe early 2000s, it certainly won’t look like a modern user interface and the features and functionality you see in there will remain fairly static throughout the lifecycle of the managed switch from purchase to dispose and recycle. You tend to find more modern managed switches have external controller based software that gives you a fully modern and nice user interface to managed your switches and multiple devices on your network, whether you have a single managed switch or hundreds.
Some of the core features and functionality you get with managed switches that you don’t get with unmanaged switches to get you a flavour of the differences;
- VLAN 802.1q Tagging
- Redundancy Features
- Managing Physical Ports for VLANs
- Managed Quality of Service (QoS) – i.e. phone network getting higher priority than backup network
- Monitor and Control Network Traffic
- Traffic Filtering
- Security Policies
- Access Control Lists
To visualise how a managed switch fits into your physical architecture, well, it’s exactly the same as where an unmanaged switch fits into the picture. The core difference being is that you now get into the virtualised layer where you start to configure how to securely segment traffic on your network and how this then maps through to physical ports on your managed switch. Let’s take a look at that in a little more detail below.
The above is a relatively straight forward example for visualising how managed switches fit into a network and how they are configured. You can configure all of the different types of things you want to be specific against physical ports and VLANs which gives you the full control over what you need to do to manage your network effectively.
What you will notice when you start to plug in a managed switch into your network. To do this properly you need to be working with business grade modems and firewall/routers to ensure things just work without issues. You’ll find that even with high end consumer grade hardware, that they just don’t work very well as they are all combo devices that don’t do anything particularly well.
What you will also notice in the image above is how both managed and unmanaged switches can work together. They both serve a different purpose.
Things to Look Out For on Managed Switches and Unmanaged Switches
This is where things get a little more nuanced. Well, more like there are a lot of nuances which aren’t always obvious when looking at different makes/models of both managed and unmanaged switches. Researching IT hardware is an absolute nightmare, I’m not going to sugar coat this. Do significantly more hardware research than you think you need to so that you can minimise the risk of purchasing IT hardware that is not fit for your specific use case. You also need to consider that there is often a difference between what manufacturers list as features from a branding perspective VS the reality of how much they truly support the specific feature. This often isn’t always possible to tell up front either which makes life difficult.
The best advice would be to create a list of features that you want your managed switch to support then you can research and properly assess the various hardware available that fits your specific use case. We’ve already covered off some of the features above that may be a consideration for you. There are other considerations you may want to make including specific network level protocols and/or configurability and propagation across many devices and complex network infrastructures etc. You will also find that some unmanaged switches will pass through network traffic containing tagged VLANs, whereas others will strip off that part of the message as it travels through the unmanaged switch which is the equivalent of posting a letter into your local post box, only for the post box to then remove the address, so by the time the letter goes to the sorting office, they have no idea what to do with the letter so just throw it in the bin. You get the idea.
It’s difficult to provide a full list of things to look out for, but I wanted to call this out as a section to make sure you really think through your requirements and understand what you are looking for. You may also find that some managed switches may or may not support routing capabilities or may or may not support VLAN capabilities, certain managed switches come with Power over Ethernet (PoE) which can support either smaller or larger number of devices/ports, some managed switches will come with licencing implications whereas others are licence free etc. It’s a complex area.
Choosing Between Managed and Unmanaged Switches
Suffice to say that any Small Office or Home Office and above should absolutely be using at least one managed switch, and will naturally be using one or more unmanaged switches deeper in the network to solve the available physical ports problem. In this day and age you cannot afford to be using flat networks to simply connect all your devices together, you need to be doing this in a safe and secure way to protect yourself and your business, regardless of how big or small your business is. After all, even big global brands have ended up with security breaches because someone in the office thought it’d be great to plug in an internet connected coffee machine to the network which allowed unauthorised access to the network causing a security breach. Don’t let this be you!
As can be seen in the diagram in the managed switches section earlier, both managed and unmanaged switches work together but independently serve very important purposes so you need to understand what to user where and why.
Hopefully that gives you a good understanding of the core differences between managed and unmanaged switches and where they fit into a network architecture. There is no right or wrong answer about which one or how many of both you need, this all comes down to the design and implementation of your network depending on your needs.
If in doubt, you need to be speaking to a professional who understands how to design networks to fit your specific business requirements. If in doubt, get in touch.
One very common use case for using pfSense is to host a single website. So here we are going to show you how simple that is to do. As this is the very first step towards understanding how to host multiple websites behind your pfSense firewall, the reality is that the approach is very different to when you get to the point of hosting multiple websites behind your pfSense firewall. We’ll do a follow up blog post on that very shortly.
What is Port Forwarding?
So the first step towards understanding how to host a single website behind your pfSense firewall is to understand the concept of Port Forwarding. Port Forwarding at the simplest level is to translate Port 1 Inbound on your WAN, to Port 2 on your LAN. To visualise what this means in an extremely basic setup, the diagram below looks at how Port Forwarding works.
As you can see from the diagram above, this basically translates www.contradodigital.com into the IP address 22.214.171.124, which is being accessed over HTTPS (aka. Port 443). Then the firewall translates this inbound request onto your web server that is sitting behind your pfSense firewall which is hosting your website, which is on the internal IP address of 192.168.1.3 and the web server software (in this case Apache Tomcat) is running on Port 8080 to handle the request.
One point to note is that depending on what server software you are running, this will depend on which port you need to forward the request onto. Generally speaking, you only want to allow inbound traffic for your website on Port 443 as this ensures a secure connection for your customers. There are many nuances and reasons to open more secure ports, but for the purpose of simplicity, let’s say that you only want to access the website as a customer.
Now let’s look at how to configure all this within pfSense.
How to Configure pfSense to Host a Single Website
Now we’ve run through what we are looking to achieve, let’s get into the pfSense config so we can see what we need to do. For the purpose of simplicity, we’re going to assume your web server is up and running and when you are on your internal network or the server itself, you can access 192.168.1.3:8080 in the web browser and that loads the website successfully. Again, there are a lot of nuances between different web servers, configurations and web application setups so this isn’t always as straight forward as this, but hopefully this information allows you to adapt this to your own specific use case. Hence why we’ve used a basic index.html in our example behind the scenes which is acting as a Hello World example.
Configure: Firewall > NAT > Port Forward
Navigate to the page, Firewall > NAT > Port Forward, then click ‘Add’.
This will take you through to the page where you can configure your port forwarding rules. Enter the following information (tailored to your specific requirements);
The core settings that you need to look at in the above screenshot are;
- Interface: WAN
- This is telling pfSense that it should listen on the physical port on your firewall that is being used for the WAN traffic. This is the port that is connected to your modem using an Ethernet RJ45 cable.
- Protocol: TCP
- This is fine to keep as it is. For the vast majority of configuration, TCP is the protocol you want to be using.
- Source: Ignore
- For the purpose of hosting a website, you can ignore configuring the source as you want as many potential customers around the world to access you website and buy something. On the other hand, if you are wanting to public a website that only certain IP addresses should be able to access, you are probably going to want to configure this so that you can whitelist their IP addresses in here. For now though, we’re going to keep things simple in this blog post.
- Destination: WAN Address
- This is a bit of an odd one when you first look at it, as you would assume that this should be set to LAN Address. Weirdly though, on the whole with a standard pfSense setup, this needs to be set to WAN Address. You tend to set this to LAN Address when you want to access something on localhost 127.0.0.1, which is actually the pfSense device itself. So technically when you think about this a little more, a WAN address from the pfSense software on the pfSense hardware is actually anything that is not on the pfSense hardware. Makes sense?
- Destination Port Range: HTTPS
- For the purpose of this blog post, we’re going to assume that you’ve got Let’s Encrypt setup on pfSense, if you haven’t, then here is a guide on how to setup Let’s Encrypt on pfSense. If you just want to test getting a single website hosted behind your pfSense firewall initially, then by all means set this to HTTP then you can set up Let’s Encrypt later and update your configuration accordingly. Generally speaking you probably want to keep things simple so that there is only one port used, rather than a range of ports – although you can configure the From Port and To Port as a range of ports if you want to try something more advanced.
- Redirect Target IP: 192.168.1.3
- Naturally enter the LAN IP address of your web server here.
- Redirect Target Port: Other – 8080
- In this specific example, this is set to 8080 as this is the default port for Apache Tomcat. If you are using Apache or Nginx then the default port will likely be 80 for standard out of the box. Or you may be getting a little smarter by using Nginx as an Application Level Reverse Proxy so you can then further redirect so you can host multiple websites behind the scenes. This can be an approach to take, but in my opinion there can be better and more secure ways of doing this. Security in general as you have probably noticed has been completely emitted from this blog post as this is a whole topic in itself. Suffice to say, in a production setting, you may not want to use the IP ranges that have been listed throughout this blog post.
- Description – Single Website Hosting
- Give this a friendly name so you know what rule this is when you come back to it later down the line. If you are just getting started and playing around then this isn’t much of an issue, but trust me, as your setup grows, your future self is going to thank you for spending that little extra time on making sure your naming conventions and descriptions are helpful.
Done. Save this and you’re good to go. Once you’ve saved this, make sure you click Apply Changes;
Once you have clicked Apply Changes, you will notice a message appear that asks you if you want to view the status of the firewall rules being reloaded (and hence working…) which can be handy to double check that this has loaded correctly;
When you click on the Monitor link in the above image, this shows you the reload process in real time so you can make sure that it completes successfully.
Once you have done this, you will notice that your Port Forwarding rules have now been applied;
What is important to note here is that this action has actually done something automatically for you in the background. To see what this is, first, click back into that Port Forward rule you just created to edit it. You will notice towards the bottom of the page that this has automatically created a Filter Rule Association for you with the name “Rule NAT Single Website Hosting” which is the same name you used in your previous Description field.
If you click through into that, you’ll notice that it takes you through to the Firewall > Rules > Edit screen for this specific rule. You’ll notice that some of the fields are greyed out so you can’t edit them. This is because the rules are linked so it prevents you from accidentally breaking things. Well, more minimises that risk really.
What you’ll notice is that the Firewall Rule has been automatically populated with the information you entered in the previous screen we were looking at on Firewall > NAT > Port Forward. pfSense has even automatically generated the same name for you to make your life as easy as possible which is a great little feature.
Test Your Website
Now we’ve gone through the process of setting up all of the pfSense configuration, you should now be able to access your website easily via several different mechanisms.
- Local IP: 192.168.1.3
- WAN IP: 126.96.36.199
- DNS Hostname: contradodigital.com (where the external DNS entry has the A Record pointed to 188.8.131.52)
Here we can see that the website is loading successfully over the WAN IP address on Port 80;
Next we can see the website loading successfully on the Local IP address on Port 8080;
And finally we can see the website loading successfully on the DNS Hostname www.contradodigital.com over Port 80;
Something to note about the above examples. This is when I’m accessing the website from a computer that is outside of the core network, just as any customer would be accessing the website. And the above examples are just that, examples, so this isn’t the actual setup in the background – but it could be quite easily.
So all of this is working from an external user perspective. This is great, but what if you are also within your own network and are wanting to access the website with ease. Well, this is where things get a little more nuanced in relation to how networks work and how traffic routes around them.
Accessing via the Local IP + Port works absolutely fine. But the second you try to access the website via with the WAN IP Address (184.108.40.206) or the DNS Hostname (www.contradodigital.com) this is where things don’t quite work as expected.
Before we jump into that, let’s just visualise the difference between this approach and the original diagram. Here is what we are trying to access now;
You might be thinking now, but why would you need to do that, why wouldn’t you just access the web server using it’s IP address directly, why wouldn’t you be using things such as Split DNS etc. Well, ok, all those things are valid discussion points, but for the purpose of simplicity, I’m going to completely ignore those points within this blog post. We can look at those topics separately another time.
The point is, you ultimately want to be able to access a single DNS Hostname, i.e. www.contradodigital.com, and get to the destination server easily, regardless of the matter if you are what is classified as “On Network” or if you are “Off Network”. Either way, you want a seamless user experience and something that just works.
Currently with the above setup we have worked through, if you use the DNS Hostname to access your website when you are On Network, then you will simply be presented with your pfSense Firewall Admin Login Screen. Handy, but not quite what we were expecting as the end result.
This is where we need to do a bit of NAT magic, officially known as NAT Reflection / Local Loopback / Hairpin NAT / NAT Hairpinning – it’s all the same thing. In essence, you turn on a feature within pfSense to allow the firewall to loop back on itself to get to where it needs to be. This is quite a handy feature and is easier to implement than Split DNS which takes a bit more effort to do.
How to Turn on NAT Reflection on pfSense
So let’s look at how we turn on NAT Reflection in the pfSense admin. It’s actually very straight forward to turn on, simply navigate to System > Advanced > Firewall & NAT.
- NAT Reflection Mode for Port Forwards: Pure NAT
- Enable NAT Reflection for 1:1 NAT: Checked
- Enable Automatic Outbound NAT for Reflection: Enabled
Save and you’re good to go. You’ll see your website loading correctly now.
So let’s have a look at NAT Reflection in a little more detail so we can understand what is actually happening under the hood and why you need this to get this setup working correctly. In summary, the main thing you need to understand in relation to NAT Reflection is this;
“NAT Reflection allows you to access local servers via your WAN Address, without leaving your LAN”
In a nutshell, if you compare an earlier diagram with the routing from your laptop on your LAN through to the web server also on your LAN, you can see the steps involved there. Compare this to what happens when you have NAT Reflection turned on (granted, the DNS is still external so this full end to end still has to happen periodically);
In the above image you can see that the traffic never leaves your local network, even though technically is should be doing. Awesome and this is all thanks to some smart routing within pfSense called NAT Reflection. Some people say this is a bit of a hack, I and most others say that it’s a very handy feature.
Re-Test Your Website
Ok so now we’ve got NAT Reflection turned on and we understand the basics of what it is doing. Reload your website and you should see it working correctly now;
Hopefully this guide has been a nice introduction on how to host a single website behind a pfSense firewall along with some of the nuances that come with doing so. As mentioned earlier, this only works for very simple setups as this approach here isn’t going to work without changes when you have two websites you are hosting, such as;
- contradodigital.com –>192.168.1.3
- contradodigital.com –>192.168.1.4
Since both websites are running on Port 80 or 443 so you can’t easily do this setup using purely pfSense. This is where other pieces of software come in handy such as HAProxy (a open source package that can be installed onto pfSense) which is one of the correct ways of allowing multiple websites to be hosted (along with multiple WAN IP addresses) or you can add an Nginx reverse proxy as the single destination where you can then control further redirection based on the hostname and port. This all comes down to your requirements.
And as a final note, we haven’t talked anything about security in this blog post really. So make sure you consider this so that you can achieve a secure setup with what you are looking to achieve.