Click the Devices tab. 3. (Web site translator) Click the entry
Click the Devices tab. 3. Click the entry for your wireless card and select Edit. The Wireless Device Configuration window appears. 4. Click the Protocols tab. 5. Select TCP/IP and click Edit. The TCP/IP Settings window appears. 6. Enter the TCP/IP address for your wireless interface in one of two ways: Select “Automatically obtain IP address settings with” and select dhcp, bootp, dialup, or none. If you are using this selection, chances are you will be using DHCP to obtain your IP address and related IP information from a computer on your wireless LAN. Cross-Reference If you are using a Red Hat Linux system as a DHCP server, refer to Chapter 23 for information on configuring the DHCP server. Unselect “Automatically obtain…” and manually enter your IP address settings. Manually entering this information is a good idea if you are setting up a point-to-point wireless LAN (for example, between two wireless computers in adjacent rooms or buildings) in a private network. I used the addresses 172.31.0.10 on my laptop and 172.31.0.11 on my desktop computer. For the Subnet Mask, I used 255.255.0.0 (a class B private network address). On the laptop, I configured 172.31.0.11 as the gateway address, so the wired Ethernet card on my desktop computer can provide my route to the Internet. 7. Click OK to close the TCP/IP Settings window. 8. Click OK to close the Wireless Device Configuration window. 9. In the main Network Configuration window, click the DNS tab. 10. On the DNS tab, enter the information you need to identify your host name, domain name, and DNS servers (Primary, Secondary, and Tertiary). (If you are obtaining your IP address using DHCP, you may be receiving this information as well. If that is the case, you can skip this step). 11. Click Apply. 12. Click Close. When asked if you want to save changes, click Yes. Note On the computer that is acting as a gateway to your Internet connection, you need to turn on IP packet forwarding. Change the value of net.ipv4.ip_forward to 1 in the /etc/sysctl.conf file. Open that file as root user with any text editor and change the line as follows:
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