V&G
Посмотри что сами Outpostы говорят:
http://www.agnitum.com/forum/showthr...?threadid=3086
Outpost Firewall and Microsoft ICS
Configuration: Outpost Firewall installed on the computer that connects your home or office network to Internet through Microsoft ICS (Internet Connection Sharing). This computer called gateway. The computers from the network which access Internet through gateway called clients.
If Outpost Firewall installed on a ICS gateway running 95/98/ME/NT/2000/2000+SP1 it allows all clients activity if you put IP addresses of clients PC in the Outpost’s Trusted Zone.
If you run Outpost Firewall on ICS gateway running Windows 2000+SP2/XP it will block clients network activity no matter if you put its IP addresses in Outpost’s Trusted Zone. We do not recomend you to use Outpost Firewall in this configuration and this configuration is not supported by Agnitum.
Как выход из трабла я бы попробовал включить на provider что-нибудь типа Wingate/Winproxy. Если получится - не забудь рассказать.
Удачи !