Re: there _is_ IPv6 NAT - just look for it

Jeroen Massar <jeroen@massar.ch> Sat, 15 March 2014 16:50 UTC

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Date: Sat, 15 Mar 2014 09:50:15 -0700
From: Jeroen Massar <jeroen@massar.ch>
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: there _is_ IPv6 NAT - just look for it
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On 2014-03-15 09:38, Brian E Carpenter wrote:
[..]
>> Unnecessary for connection normal hosts, but let me admit, that I
>> recently found a situation where it was actually useful to have Linux's
>> NAT function for IPv6: forwarding connections in a proxy-style method.
>>
>> This way I was able to setup a load-balanced forwarding setup for
>> various services without having to modify the backend systems to
>> understand a special header (eg X-Forwarded-For) for proper tracking of
>> too-many-connections and mere logging.
> 
> Try RFC 7098?

The flow-label would just add an extra tracking parameter in the NAT or
maybe better said 'connection tracker/translator' table.

I thus see little gain in adding something like that.
Also I don't know of any device actually having support for that.

Greets,
 Jeroen