I'll save the mods some quoting time
"If your question in any way relates to your nation, your question belongs in the Game Abuse section of the Moderation forum. YOU MAY NOT APPEAL IN-GAME ACTIONS."
"YOU MAY NOT HAVE MULTIPLE USERS ON ONE NETWORK/IP, and no, this is not negotiable nor do we make exceptions. If you are caught breaking this rule, which you agreed to when you electronically signed the TOS upon creation of your nation, your nation/s will be deleted."
"The game staff uses more than just IP evidence to detect multi users, so if you violate this rule you face nation deletion and/or a possible ban from the game."
"Only one nation is allowed per IP as of 03/13/07. Period."
Sorry man, the rules are pretty clear, if in doubt, don't do it