[libvirt] DUID-LLT (DHCPv6 with time-based UUID generation) - how does it work in libvirt?

Yaniv Kaul ykaul at redhat.com
Fri Sep 2 06:22:52 UTC 2016


Reading the examples, I'm not sure how to get DUID-LLT working (which is
unfortunate, as it seems to be the default of dhclient). I got DUID-LL
working, but DUID-LLT has a timestamp - which is generated, AFAIK, by the
client - how can the XML contain the correct DUID-LLT entry?
The examples in the docs:
<host id="0:1:0:1:18:aa:62:fe:0:16:3e:44:55:66"    ip="2001:db8:ca2:2:3::2"
/>

Somehow assumes the time is 18:aa - no idea how it 'guessed' this is what
the client would use.
DUID-LL was easy and worked, as it just a prefix + the MAC address.

TIA,
Y.
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