vista firewall is disable. i tried with no firewall installed so i think it comes from vista.
the port 113 is forwarded in the router with the right local ip.
kaspersky AV doesnt check port 113.
it's vista sp1 ultimate.
i can't get an ident response as it works in XP pro sp3 rc2 3300.
i got online armor installed on xp + kasper AV. all works fine.
i don't know where to look.