Re: [homenet] homenet: what now? ... next?

Juliusz Chroboczek <jch@irif.fr> Mon, 04 March 2019 00:16 UTC

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Date: Mon, 04 Mar 2019 01:16:18 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
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Subject: Re: [homenet] homenet: what now? ... next?
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>     Both HNCP and Babel carry their control traffic over link-local IPv6, but
>     they support both IPv4 and IPv6 with almost equal functionality.

>     (The only significant difference is the treatment of border routers, which
>     are assumed to be doing NAT in IPv4 and stateless routing in IPv6.)

> Does that equality mean that I can route from a device in one home to a device
> in another over v4.

You'll need something like ICE (RFC 8445), or at least STUN (of which ICE
is a superset).  PCP (or NAT-PMP) should in principle work too, but
I haven't actually tried getting it to work over multiple hops.

You'll need ICE STUN or PCP even for IPv6, since people appear to be
intent on putting stateful IPv6 firewalls on their edge routers.

> Won’t they both have rfc 1918 addresses (possibly the same ones).

ICE is fine with that.

-- Juliusz