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So moving on, let's enable Windows Network Load Balancing.

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So the first thing we need to do on the first VPN server is

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install the Network Load Balancing role,

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and the way to do that is with PowerShell because it's quick and simple,

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and the command is just Install‑WindowsFeature NLB and

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‑IncludeManagementTools as well.

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Once that's done, we can move on with the configuration of NLB.

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Now in the interest of time,

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I've already installed the NLB feature on my second VPN server here.

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So I'm just going to open up the Network Load Balancing management console,

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and the configuration is actually pretty straightforward.

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So we're just going to right‑click here and choose New Cluster,

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and we'll provide the name of the first server,

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that's this individual server, and you can use its host name,

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or if you're on the server itself, you can just use localhost.

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And if you have multiple network interfaces,

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you only need to deploy NLB on the external interface.

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So if you're using a single NIC, or single network interface,

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then you can just select the only available adapter here,

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but if you're using the multi‑home model,

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simply select the external interface and then choose Next.

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No other changes here.

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This is the dedicated IP address of this server, and so we'll click Next.

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And here's where you're going to add your cluster IP address,

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and this is the virtual IP address or VIP for this cluster.

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So make sure that this is an IP address from the same subnet as the VPN server,

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and of course, obviously,

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make sure it's not in use anywhere else on your network.

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So we'll click OK, click Next.

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And this is the operating mode that I was talking about before.

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In this case,

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we're going to use Unicast because that's kind of

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the best default operating mode.

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You may have to use Multicast, depending on your hypervisor,

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but in this case, we're just going to go use Unicast and move on.

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Switch is next, and here we're just going to accept the defaults.

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We're going to go ahead and cluster this for all ports on this server.

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It's not really important that we set this up for individual ports.

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The edge firewall is going to do the screening of ports.

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So in this case, we'll go ahead and load balance all ports on

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that external interface, and then we'll click Finish, and once

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the configuration is complete,

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you'll see that the interface here turns green. At this point, we're

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ready to install our second node in the cluster, and to do that, I'm

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actually just going to right‑click on this and choose Add Host To

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Cluster, and once again, as a reminder,

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I've already installed the NLB feature or role on the second server.

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So now I'll add the host name of the second server here, and once again, I'm

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going to choose the external interface, and choose Next,

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choose Next again, and then Finish.

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So then once the cluster is complete,

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you should see two healthy VPN servers here.

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The status showing as Converged, meaning the Network Load Balancing

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configuration has been propagated to both servers. And at this point,

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you should now be able to update the NAT rule on your edge firewall and

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deliver that traffic to the virtual IP address, here in my case,

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192.168.1.235, and through the magic of Network Load Balancing,

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it will distribute the traffic to the nodes in the cluster, and load balancing will be set up.