yes i try see man page, but they dont explain if the size its: the full packet size or the data part. i have a packet with diffent total size (becouse the header change) but always with 14bytes on data. 2008/10/8 Eric Leblond <eric@xxxxxx>: > Hello, > > On Wednesday, 2008 October 8 at 13:21:35 -0300, Servers 4you wrote: >> I need block every packet with 14bytes size. >> >> what can i do? > > man iptables : > > length > This module matches the length of the layer-3 payload (e.g. > layer-4 packet) f a packet against a specific value or range > of values. > > [!] --length length[:length] > > BR, > -- > Eric Leblond > INL: http://www.inl.fr/ > NuFW: http://www.nufw.org/ > -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html