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Re: [v6ops] IPv6 mostly for DS-Lite

Ole Troan <otroan@employees.org> Wed, 20 March 2024 10:11 UTC

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From: Ole Troan <otroan@employees.org>
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Date: Wed, 20 Mar 2024 11:11:24 +0100
Cc: Gert Doering <gert@space.net>, v6ops <v6ops@ietf.org>
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To: Mark Andrews <marka@isc.org>
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Subject: Re: [v6ops] IPv6 mostly for DS-Lite
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Mark,

> So ISPs have to back out DS-lite and deploy NAT64 just so people can deploy IPv6 mostly. We have provided a number of IPV4AAS mechanisms which all work at the node level as well as CPE level.  It should be possible to support any of them.

So this has a slightly different deployment model.
Where the mechanism is taken all the way to the host.

More akin to https://datatracker.ietf.org/doc/html/draft-bound-dstm-exp-00 than anything.

It depends on a NAT64 somewhere along the way. It could be on the first-hop router / CPE or in the provider network.

DS-lite and friends are built to provide a dual stack network downstream. IPv6 mostly is leaving that to the host itself with an IPv6 mostly network.

But yes, it could replace all of the DS-lite, MAP-E, MAP-T, LW46, … mechanisms. :-)

Cheers,
Ole

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