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Re: [v6ops] draft-ietf-v6ops-ula-usage-recommendations - work or abandon?

Lorenzo Colitti <lorenzo@google.com> Mon, 09 November 2015 03:22 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Mon, 09 Nov 2015 12:22:33 +0900
Message-ID: <CAKD1Yr1H2HgxBNOZBrx-ttoB6z6caLAck3csF=ti6CDUzW57ng@mail.gmail.com>
To: Fernando Gont <fgont@si6networks.com>
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Cc: IPv6 Operations <v6ops@ietf.org>
Subject: Re: [v6ops] draft-ietf-v6ops-ula-usage-recommendations - work or abandon?
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On Mon, Nov 9, 2015 at 12:17 PM, Fernando Gont <fgont@si6networks.com>
wrote:

> What you refer to has to do with the diode-firewall thing (which is a side
> effect in nat, and that folks are replicating in ipv6 by deploying a diode
> firewall where you currently have a nat box). Obviously, if your policy is
> that you don't want incoming connections, and i have the same policy then,
> unfortunately, we have to talk to a third party.
>
Nope. It is much easier to establish a connection across a diode firewall
than to establish one across a NAT. In the former case, all the endpoints
need to do is send each other packets at about the same time. In the
latter, they need to implement NAT traversal via relays.

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