[Dnsmasq-discuss] DHCPv6 relay requests ignored

Harald Jensås hjensas at redhat.com
Tue Oct 1 00:07:27 BST 2019

On Mon, 2019-09-30 at 11:29 +0200, Harald Jensås wrote:
> Hi,
> I am trying to get a setup with relays for DHCPv6 working, I can see
> the requests coming in and dnsmasq on the relay node forwards the
> request. On the server side I can see the dhcp6 relay-fwd coming in
> on
> the expected interface. Then there is no reply, and nothing happens
> in
> the dnsmasq DHCP server log. More details on the configuration and
> some
> packet capture data below.
> I have tried using the both unicast address and the multicast address
> as server_address on the dnsmasq relay node.
> Any pointers? It's as if dnsmasq is ignoring the relayed dhcp6 inf-
> req?

Turn's out this works fine if I recompile dnsmasq from git. Must be
something between 2.76 as shipped in Centos 7 and 2.80-75-ge710c34.


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