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NOTE: CentOS Enterprise Linux is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux.

18.6. ip6tables and IPv6

If the iptables-ipv6 package is installed, netfilter under Red Hat Enterprise Linux can filter the next-generation IPv6 Internet protocol. The command used to manipulate the IPv6 netfilter is ip6tables. Most directives for this command are identical to those used for iptables, except the nat table is not yet supported. This means that it is not yet possible to perform IPv6 network address translation tasks, such as masquerading and port forwarding.

Saved rules for ip6tables are stored in the /etc/sysconfig/ip6tables file. Old rules saved by the ip6tables initscripts are saved in the /etc/sysconfig/ip6tables.save file.

The configuration file for ip6tables initscript is /etc/sysconfig/ip6tables-config and the names for each directive vary slightly. For instance, the iptables-config directive IPTABLES_MODULES is IP6TABLES_MODULES in the ip6tables-config file.

 
 
  Published under the terms of the GNU General Public License Design by Interspire