инструмент администрирования для фильтрации пакетов IPv4 / IPv6 и NAT (administration tool for IPv4/IPv6 packet filtering and NAT)
Смотри также (See also)
iptables-apply(8), iptables-save(8), iptables-restore(8),
iptables-extensions(8),
The packet-filtering-HOWTO details iptables usage for packet
filtering, the NAT-HOWTO details NAT, the netfilter-extensions-
HOWTO details the extensions that are not in the standard
distribution, and the netfilter-hacking-HOWTO details the
netfilter internals.
See http://www.netfilter.org/
.