Thanks for all the answers, but they aren't quite what I'm looking for!
I can find out my local IP address and the name of the computer and which workgroup it is in. But what I really want is the DHCP network address for it. If I run netstat on a remote connection I can see the DHCP name ( dhcp-offices8-187.xxxx.xx.xx) and ipconfig gives me the DHCP IP address.
Thx in advance.