Package iptables

Tools for managing Linux kernel packet filtering capabilities

http://www.netfilter.org/

The iptables utility controls the network packet filtering code in the
Linux kernel. If you need to set up firewalls and/or IP masquerading,
you should install this package.

General Commands
Command Description
iptables-xml Convert iptables-save format to XML
System Administration
Command Description
iptables administration tool for IPv4/IPv6 packet filtering and NAT
iptables-apply a safer way to update iptables remotely
iptables-extensions list of extensions in the standard iptables distribution
iptables-restore Restore IP Tables
iptables-save dump iptables rules to stdout