2ip addresses on 1 comp?

[mason55]

betadecay:
The IP your cable provider gives you usually lasts for awhile. If you change the connection the reset your IP you'll be ok. If you each have "your own" connection you'll be fine.

mindriot:
party also analyzises the NAT data in each packet, so it knows if you're coming from different computers behind the same firewall/router.