Hi Just installed Fedora Core 6 with: kernel-2.6.18-1.2869.fc6 iptables-1.3.5-1.2.1 I want to use connlimit on a bridge (eth0 and eth1) but it gives me this error: iptables: Unknown error 4294967295 It looks like connlimit is included in iptables (/lib/iptables/libipt_connlimit.so) but as remember I also need 'ipt_connlimt.ko' module in the kernel. In older days I think I compiled the kernel with: CONFIG_IP_NF_MATCH_LIMIT=m But when I look at the kernel config for kernel-2.6.18-1.2869.fc6 I see something like: CONFIG_NETFILTER_XT_MATCH_LIMIT=m This is something about xtables - what is xtables? Which module(s) do I need if I want to use 'connlimit'? Do I need to patch with patch-o-matic? :-) Martin