46 CHAPTER 5: CONFIGURING THE 56K LAN MODEMYou Should Have ThisInformationIf you want to set up a connection to an ISP, you will need:n Your ISP’s telephone access number.n Your user name, password and DNS address (if your service provider requires aspecific DNS address).Determine Whether YouUse Dynamic or Static IPAddressesYour setup procedure varies depending upon whether you are using a dynamic ora static IP address.A static IP address is a permanent, manually-assigned address recognized by aremote server, such as a corporate LAN or an ISP. By default, your 56K LANModem dynamically assigns an IP address to each computer. If you have beenaccessing a remote server via a static IP address prior to installing your 56K LANModem, you may be required to perform additional configuration steps. The first stepis to determine your static versus dynamic IP addressing scenario.If you determine that your computer has a static IP address, refer to “Setting UpYour Computer If You Have a Static IP Address.” If your computer has a dynamic IPaddress, you may begin configuring the 56K LAN Modem directly. Refer to“Configuring the 56K LAN Modem for the Typical Configuration”.Determine your IP address type as follows:n For Windows 95, 98 and NT 4.0 Users: From the Start menu, select Settingsand then Control Panel. Double-click Network. Select TCP/IP for the Ethernetcard associated with your 56K LAN Modem and then click Properties. Selectthe IP Address tab.If the radio button labeled Obtain an IP address automatically (Windows 95and 98) or Obtain an IP address from a DHCP server (Windows NT 4.0) isselected, then your computer has a dynamically assigned IP address. You areready to continue directly with “Configuring the 56K LAN Modem for theTypical Configuration”.If the radio button labeled Specify an IP address is selected, your computer hasa static IP address.n For Mac Users: From the Apple menu, select Control Panels, and double-clickTCP/IP. Choose Ethernet from the Connect Via pop-up menu, if it is not alreadychosen.If the Configure pop-up menu is set to Using DHCP Server, then your computerhas a dynamically assigned IP address. You are ready to continue directly with“Configuring the 56K LAN Modem for the Typical Configuration”.If Configure is not set to Using DHCP Server, and you have specific values listedin any of the following fields: IP address, Subnet mask, Router address, orName server address, then your computer has a static IP address.n For Windows 3.11 Users: From the Program Manager, double-click theNetwork program group icon. Double-click the Network Setup icon. Click theDrivers button. Highlight the MS TCP/IP - 32.X entry and click Setup. If EnableAutomatic DHCP Configuration is checked, then your computer has a dynamic IPaddress. You are ready to continue directly with “Configuring the 56K LANModem for the Typical Configuration”. If an IP address is entered in the IPAddress box, then your computer has a static IP address.