To get to the command prompt in Windows XP go to: Start, Run and in the empty box type cmd and then hit the enter key. If you do not have the RUN option please contact your network administrator.
If you are in linux, in your terminal type: ifconfig
Display Connection Configuration: ipconfig /all
Display DNS Cache Info Configuration: ipconfig /displaydns
Clear DNS Cache:ipconfig /flushdns
Release All IP Address Connections: ipconfig /release
Renew All IP Address Connections IP Configuration: ipconfig /renew
Refresh DHCP and Re-Register the DNS connections: ipconfig /registerdns
Display DCHP Class Information: ipconfig /showclassid
Change/Modify DHCP Class ID: ipconfig /setclassid
Network Connections:control netconnections
Network Setup Wizard: netsetup.cpl
Test Connectivity: ping Example: ping
www.yahoo.comTrace IP address Route: tracert
Displays the TCP/IP protocol sessions: netstat
Display Local Route: route
Display Resolved MAC Addresses: arp
Display Name of Computer Currently on: hostname
IP Command Lines