Mac OS X 10.6: Information you need to connect to the Internet
Before you can connect to the Internet, or to a network connected to the Internet, you’ll need to enter the information you received from your Internet service provider (ISP), or the administrator of the network you’re connecting to.
Depending on the type of network service you’re using, Ethernet, AirPort, or dial-up PPP for example, the information may vary. Use this page as a reminder of the type of information you need to enter into the Network Setup Assistant, or in the Network pane of System Preferences.
Gather the following information:
Your user or account name and password
The telephone number to your service provider if you’re using a dial-up modem
Whether you receive an IP address manually or automatically using DHCP or BootP
Your IP address, the subnet mask and router address (for manual configurations)
Your DHCP service name if it’s required by your service provider
The address to the Domain Name System (DNS) server if you were given one
When you have the information you need for the type of connection you’re making, search Mac Help for information about where to put it. Search for cable modem, DSL, or Ethernet, depending on how you connect.
If you don't know where to find this information, call your ISP or network administrator.