I didn't have any v6-specific issues with DHCP relay in Junos 21.4. If
you're going to rely on option-82, consider to turn on proxy mode.
Without it Junos didn't update Circuit-ID in RENEW packets sent unicast
from clients to DHCP server. Although it could be fixed in last
releases, worth to check.
Kind regards,
Andrey
Dave Bell писал(а) 2023-01-13 04:10:
Thanks Andrey,
Yes, I believe you are correct. You can't switch from using local DHCP
server in the global routing table to DHCP relay once authenticated in
a different VRF.
I can split my services onto different interfaces coming into the BNG,
though since you need to decapsulate them first, they end up on the
same demux interface anyway.
I analysed a lot of traceoptions and packet captures. My relay didn't
receive a single packet, and the logs indicated that it was not
looking for DHCP configuration in my VRF that has forwarding
configured.
I think my only option is to move everything over to DHCP forwarding
in all cases, though this seems quite flaky for v6...
Regards,
Dave
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