So we know weve got some configuration problems that

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So, we know we've got some configuration problems that we need to address. I'm going to come down here and right click on the icon, and then select Open Network Sharing Center. By the way, this is found in Control Panel. You can get to this same location by right clicking on the Windows icon, going to Control Panel, going to Network and Internet, and then Network and Sharing Center. All roads lead to Rome. So here we have our Ethernet connection, this is how I'm connected to the network. It's a wired network connection. To view the status of the connection, I can click on Ethernet,and as we suspected for IPv4 and IPv6 we have no network access. That means we're not able to communicate with other hosts. The link speed looks good, I'm showing one gigabit here. So that means at a physical layer level, I am able to connect to the network switch. There's something wrong higher up in the networking layers, in my logical layers where I configure addressing.Something is not working right that is not allowing me to connect to other hosts on the network. Let's go to Details here, and here we find some very important information that leads us to the answer to our problem. Notice right here under auto-configuration IPv4 we see an address assigned that begins with 169.254. Any time you see an IP address assigned to a host that begins with 169.254, you know that you have a problem. That's because 169.254 represents a link local address, or an automatic IP addressing address, or APIPA.
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APIPA kicks in whenever the network host is unable to get an IP address. Now, this usually happens in situations where the network adapter is configured to get an IP address via DHCP. When the system boots up the network adapter contacts the DHCP server on the network, tells it that it's online, and requests and IP address from a DHCP server. The DHCP server responds, and provides us with the IP configuration that we need. Usually this situation occurs when that DHCP server is unreachable. For example, maybe the DHCP server is down. I happen to know that that is the case in this situation. Why do I know that? Because I took it down before I started the demonstration. So I know the DHCP server's down, so therefore when this network board tried to go out and contact it to get an address, it couldn't. Now, in the real world, what would I do? Well, I'd probably contact the network administrator and say, "Get your DHCP server back up and running, man." But I can't do that here because I'd just be yelling at myself. So, what we need to do is statically configure the appropriate IP addressing information, so that we can communicate on the local network and reach out on the internet. Go ahead and click Close. Click Close again. Let's go over here to Change Adapter Settings.We'll right click on the Ethernet adapter, and we'll click Properties. And then we'll locate the internet protocol version 4, click on Properties, and just as we suspected this network adapter is configured to obtain an IP address automatically. The DHCP server's down, so we're not getting any addressing. Let's click on Use the following
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