[Dnsmasq-discuss] Dnsmasq doesn't reply to queries made over (link-local) IPv6

Toke Høiland-Jørgensen toke at toke.dk
Mon Sep 5 15:42:54 BST 2016

Simon Kelley <simon at thekelleys.org.uk> writes:

> The traces you've both posted look good to me: dnsmasq is providing
> the correct value in the sin6_scope_id field of the destination
> address when sending the reply.
> The obvious difference between the failing case and the working one is
> that Toke is using an interface to a VLAN, eth1.1, whilst I used a
> standard physical interface and Kevin used a bridge interface. Toke,
> could you try on a interface other than a tagged VLAN, and see if you
> get the same effect?
> Also, try doing a packet capture on the physical interface underlying
> the VLAN interface, to see if that gives you the packets that you're n
> not seeing by capturing the VLAN interface.

Tried all that, doesn't help. However, I have another box where things
work fine; "only" difference being the hardware. So I guess it's not a
bug in dnsmasq at least. Thanks for the help in debugging... :)


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