30. Configure Networking Manually  BEFORE YOU BEGIN 27 Set Your Network Device Preference Order
 SEE ALSO 29 Configure Networking Automatically (with DHCP or BootP) 40 Connect to the Internet Wirelessly
On many home and corporate networks, you will not be able to get your TCP/IP information automatically from a DHCP server; instead, you will have to enter all the important pieces of networking data yourself, using fixed addresses that won't change unless you change them yourself. You should have received all the relevant TCP/IP information to set up your Internet connection when you signed up with an Internet service provider. If you don't have it, ask your network administrator or ISP for the IP address, subnet mask , gateway router , and DNS servers that you will have to enter; be sure to have this information ready as you set up your Mac's networking. | 1. | Select Network Device
On the Network Preferences pane of the System Preferences application, select Network Status from the Show menu. Double-click the network device you want to configure. Alternately, select the device from the Show drop-down menu.
| | 2. | Open TCP/IP Settings Click the TCP/IP tab to open the screen where you can configure the device's TCP/IP settings. 30. Configure Networking Manually  | | 3. | Configure TCP/IP Manually
Select Manually from the Configure IPv4 drop-down menu. All the configuration fields become editable.
| | 4. | Enter IP Address and Subnet Mask
In the IP Address field, replace the default 0.0.0.0 by typing the IP address given to you by your network administrator or ISP. Make sure that you enter the address in the form of four numbers between 0 and 255, separated by periodsfor example, 17.112.152.32 .
Enter the Subnet Mask as well; depending on your network's architecture, the subnet mask will probably be 255.0.0.0, 255.255.0.0 , or 255.255.255.0 . You should have this information from your network administrator or ISP.
| | 5. | Enter Gateway Router Address
Enter the address of your network's gateway router, as provided by your network administrator or ISP. This address must be on the same network as your IP address, as defined by the subnet mask.
| | 6. | Enter DNS Servers and Search Domain
You should have the addresses of one or more DNS servers; these servers might be on your local network, but they don't have to be. Enter them in the DNS Servers box, one per line. You can also enter your company's domain name in the Search Domains field, if you're on a corporate network, if you want to shorten the hostnames you have to type in for local servers. You can enter multiple search domain names if you use a Virtual Private Network (VPN) to connect to two local networks at once; separate the domains with commas or spaces (Mac OS X adds commas for you if omitted).
| | 7. | Apply TCP/IP Settings
Click the Apply Now button to apply your settings. You should immediately be able to communicate with the network and the Internet using your favorite applications.
|  TIP An easy way to check whether your networking is set up correctly is to open up a Terminal window (inside Applications, Utilities ) and enter ping www.yahoo.com at the command line (press Return at the end). If you get repeated lines of statistics back at a rate of one per second, you're successfully set up for the Internet. If you get no repeating output (or an error, such as No route to host ), there is a misconfiguration somewhere. Press Control+C to quit the ping command.
 |
