WinXP uses ipconfig.exe to view your LAN and Internet IP addresses (Win98 uses winipcfg.exe)

How to Display the your IP addresses (for the LAN and Internet)

To see the IP address of your LAN Ethernet card and your PPP Internet Connection:

Start/Run . . . cmd /k ipconfig
or
Start/Run . . . cmd /k ipconfig /all (to see the physical address (MAC Address) and the DNS server address of your PPP connection)

NOTE: you can also place this command in a text file using Notepad, save the text file and place a shortcut to it on your desktop.

Options with IPCONFIG command (only the /all option is really needed)

Note: the default displays IP address, subnet mask and default gateway for each adapter bound to TCP/IP.
ipconfig [/? | /all | /renew [adapter] | /release [adapter] | /flushdns | /displaydns | /registerdns | /showclassid adapter | /setclassid adapter [classid] ]where adapter Connection name (wildcard characters * and ? allowed, see examples)

/? Display this help message
/all Display full configuration information.
/release Release the IP address for the specified adapter.
/renew Renew the IP address for the specified adapter.
/flushdns Purges the DNS Resolver cache.
/registerdns Refreshes all DHCP leases and re-registers DNS names
/displaydns Display the contents of the DNS Resolver Cache.
/showclassid Displays all the dhcp class IDs allowed for adapter.
/setclassid Modifies the dhcp class id.
NOTE: For Release and Renew, if no adapter name is specified, then the IP addressleases for all adapters bound to TCP/IP will be released or renewed.
For Setclassid, if no ClassId is specified, then the ClassId is removed.
Examples:
> ipconfig ... Show information.
> ipconfig /all ... Show detailed information
> ipconfig /renew ... renew all adapters
> ipconfig /renew EL* ... renew any connection that has its name starting with EL
> ipconfig /release *Con* ... release all matching connections, eg. "Local Area Connection 1" or "Local Area Connection 2"