Hi to all, I am using Fedora Core 5 with an upgraded kernel of 2.6.20.4. I installed iptables-1.3.7 on it. However, I am not able to use connection tracking. I checked all the items in Networking options related to connection tracking and iptables. However, when I boot in my 2.6.20.4 kernel, and issue the comand "service iptables start", I get this: [root@localhost ~]# service iptables start Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: raw mangle filter [ OK ] Unloading iptables modules: [ OK ] Applying iptables firewall rules: [ OK ] Loading additional iptables modules: ip_conntrack_netbios_n[FAILED] [root@localhost ~]# locate ip_conntrack_netbios /lib/modules/2.6.15-1.2054_FC5smp/kernel/net/ipv4/netfilter/ip_conntrack_netbios_ns.ko /usr/src/linux-2.6.20.4/net/ipv4/netfilter/ip_conntrack_netbios_ns.c [root@localhost ~]# It seems that connection tracking is not being activated. How can I solve this problem? Warm regards, Visham