[147021] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

IPv6 NPT and NAT for Linux

daemon@ATHENA.MIT.EDU (Ray Soucy)
Wed Nov 30 15:15:10 2011

Date: Wed, 30 Nov 2011 15:14:07 -0500
From: Ray Soucy <rps@maine.edu>
To: NANOG <nanog@nanog.org>, I2 IPv6 working group <wg-ipv6@internet2.edu>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

For those who missed it, Linux is adding NAT for IPv6 to netfilter:

http://www.spinics.net/lists/netfilter-devel/msg19979.html

Along with tradition SNAT, and DNAT targets most of us are familiar
with, a new NETMAP target is included that implements NPT (network
prefix translation).

I for one am happy to see this; despite not wanting to see people NAT
IPv6 as the norm, having the NETMAP target will largely replace the
use of SNAT and MASQUERADE for many deployments, while keeping those
tools for the times when traditional NAT is desirable.

-- 
Ray Soucy

Epic Communications Specialist

Phone: +1 (207) 561-3526

Networkmaine, a Unit of the University of Maine System
http://www.networkmaine.net/


home help back first fref pref prev next nref lref last post