Access the Local Area Connection Properties dialog box.

Understanding Internet Protocol | 77 • For the Subnet mask of both computers, enter 255.255.255.0. • For the Gateway address of both computers, enter 192.168.50.100. • Then, in the next fi eld, enter a Preferred DNS server address of 192.168.50.201. Do this for both computers as well. • When you are fi nished, the fi rst computer’s confi guration should look like Figure 4-5. • If you have other computers, try confi guring their IP addresses as well; the host portion of the IP should ascend once for each computer: .3, .4, .5, and so on. Figure 4-5 IPv4 Properties dialog box using a Class C private IP address, subnet mask, default gateway, and DNS server address

4. Click OK. Then, in the Local Area Connection Properties dialog box, click OK. This will

complete and bind the configuration to the network adapter.

5. Now test your configuration. We will do this in two ways, first with the ipconfig com-

mand, and second with the ping command. a. Type ipconfi g. Verify that the IP confi guration is accurate and corresponds to what you typed in the IP Properties window. If not, go back and check your Internet Protocol Properties dialog box.

b. Ping the other computer. Also try to ping any other computers that were con-

fi gured as part of this Class C network for example, ping 192.168.50.2. Make sure you get replies. If you do not, check the IP confi gurations of both computers. Also make sure the computers are physically connected to the same network.

6. Now attempt to connect to the Internet. You should not be able to This is the case

because we used fictitious gateway and DNS server addresses. I can’t possibly know exactly what addresses you use on your network So . . . move on to step 7.

7. Get the following from your instructor or from other documentation:

• At least two static IP addresses that you can use for your client computers that will be allowed access to the gateway. • The proper subnet mask, default gateway, and DNS server address that corre- spond with the static IPs.

8. Configure the computers with the new information and save the config.

9. Test the LAN connection with ping, and test the Internet connections by using a web

browser to connect to a Web site. If either fails, check each address individually for any typos, IP conflicts, or other configuration mistakes.