hello, I try to use iptables rules to drop skype trafic. The iptables rule is : iptables -I FORWARD -p udp -m length --length 39 -m u32 --u32 '27&0x8f=7' --u32 '31=0x01020304' -j ACCEPT the problem I encounter is that i can't have the match u32 for iptables. Could someone help me ? ___________________________________________________________________________ Yahoo! Mail réinvente le mail ! Découvrez le nouveau Yahoo! Mail et son interface révolutionnaire. http://fr.mail.yahoo.com _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc