Network function
/etc/modules needs to contain the following for extra network function:
# net/ipv-4 ip_gre ipip
# net/ipv-4/netfilter # iptable (in order) ip_tables ip_conntrack ip_conntrack_ftp iptable_nat iptable_filter iptable_mangle # ip_nat_ftp ip_queue # ipt_LOG ipt_MARK ipt_MASQUERADE ipt_MIRROR ipt_REDIRECT ipt_REJECT ipt_TCPMSS ipt_TOS ipt_limit ipt_mac ipt_mark ipt_multiport ipt_owner ipt_state ipt_tcpmss ipt_tos ipt_unclean # #ipchains #ipfwadm
The preceding may not be optimized. depmod may take care of some of the above modules.