nanog mailing list archives

RE: quietly....


From: Matthew Huff <mhuff () ox com>
Date: Thu, 3 Feb 2011 11:58:27 -0500

Yes, but unless that ipv6 that isn't globally routed is NAT66 to the outside world, then it wouldn't have external 
access.

-----Original Message-----
From: Jon Lewis [mailto:jlewis () lewis org]
Sent: Thursday, February 03, 2011 11:41 AM
To: Iljitsch van Beijnum
Cc: nanog () nanog org
Subject: Re: quietly....

On Thu, 3 Feb 2011, Iljitsch van Beijnum wrote:

On 3 feb 2011, at 17:16, Jon Lewis wrote:

When someone breaks or shuts off that filter, traffic through the NAPT firewall stops working.  On
the stateful firewall with public IPs on both sides, everything works...including the traffic you
didn't want.

People are going to want NAT66...and not providing it may slow down IPv6 adoption.

Hm, if you turn off the NAT66 function, wouldn't the traffic pass through unhindered, too?

Outbound traffic would.  Inbound, if on the inside, you're using IPv6
space that's not globally routed, won't.  Just like what happens now with
NAPT with rfc1918 space on the inside when you stop doing
translation...private IP traffic leaks out...but nothing comes back
because there is no return path.

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  Jon Lewis, MCP :)           |  I route
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