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Re: IPv4 traffic on "ietf-v6ONLY"

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 15 November 2017 11:29 UTC

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Subject: Re: IPv4 traffic on "ietf-v6ONLY"
To: ipv6@ietf.org
References: <f9805855-68cf-a3e8-a13f-c6ac31b09058@gmail.com> <bbd4e1d2-047f-6758-76f8-fd591c51dad7@gmail.com> <D631CE54.8C0F5%lee@asgard.org> <m1eEvEP-0000G3C@stereo.hq.phicoh.net>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
Message-ID: <0b565be0-e228-0879-ead5-3ba03e6d1c28@gmail.com>
Date: Thu, 16 Nov 2017 00:29:30 +1300
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There's an L flag in draft-ietf-intarea-provisioning-domains
that says "DHCP(v4) on this network". So L=0 says "No DHCP(v4) on
this network".

    Brian
On 15/11/2017 23:47, Philip Homburg wrote:
>> Does that return us to the question of how to tell hosts that IPv4
>> doesnt live here, and to stop trying?
> 
> The safest option to do that is a DHCPv4 option that says 'no IPv4 service
> here, go away'.
> 
> Any network that has IPv4 production traffic already has to protect against
> rogue DHCPv4 servers. 
> 
> Of course, a DHCPv4 option conflicts with the goal of some people to have
> no IPv4 related infrastructure at all.
> 
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