What’s My IP Address… no the other one?

Sometimes you need to access a clients PC and you need to know the answer to the question
“What’s my WAN IP address?”

If the PC/Mac is part of a home LAN behind a NAT router, then the running ipconfig or ifconfig will tell you the private LAN address of the PC/Mac, not the public WAN address allocated to your broadband connection. To discover your public WAN address, visit one of these sites:

• http://www.all-nettools.com/pr.htm (look for line Client IP)
• http://www.broadband-help.com/cm_diagnose.asp (look for IP in section Network).
• http://checkip.dyndns.org/ (Elegant, Fast and a single IP Address returned)