nanog mailing list archives

Re: Use of unique local IPv6 addressing rfc4193


From: Karl Auer <kauer () biplane com au>
Date: Fri, 09 Sep 2016 10:49:34 +1000

On Thu, 2016-09-08 at 23:43 +0000, Pshem Kowalczyk wrote:
both ways - if we decide to use it we'll have to either overlay it
with public IPv6 space (and provide the NAT/proxy for where we don't
have any public IPv6 assigned) or simply not use the fc00::/7 and
skip the NAT/proxy aspects of it.

There is no necessary link between ULA addresses and NAT. You don't
have to NAT ULA, *ever*. If you need public addresses, go get them.
There are enough.

IMHO one should use ULA in only three situations:

- a completely isolated network
- for internal communications e.g. fabric management)
- for testing

Regards, K.

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