[Dnsmasq-discuss] dnsmasq 2.62-3 as DHCPv6-Server and RA-Server: Bug sending router's link-local instead of global address as gateway and DNS-server?

Kevin Darbyshire-Bryant kevin at darbyshire-bryant.me.uk
Tue Jan 21 11:16:24 GMT 2014

On 21/01/2014 10:40, Martin Babutzka wrote:
> Hello,
> We are using this great piece of software so far as DNS cacher but
> want to implement it also as IPv6 server by now. DHCPv4 is handled by
> another software at the moment (isc-dhcp-server) but we think the
> dnsmasq 2.62-3 is quite suitable for our need of an DHCPv6- and
> RA-server.
> I activated the features in dnsmasq.conf which I think should set-up a
> working DHCPv6/RA-Server (see compressed config file below). From then
> on the server distributed ipv6-addresses from the correct range.
> Unfortunately some error occured: As wanted it also distributed
> Gateway and DNS-server but it used the LINK-LOCAL v6 address of the
> corresponding interface instead of the Global configured address
> (2010:7d0:904:1202::1). Is this a bug or misconfiguration?
> Another independent question: With this configuration dnsmasq starts
> to be pretty noisy in the syslog. Is there any option to reduce the
> verbosity once the system works?
v2.68 includes 'quiet-dhcp, quiet-dhcp6 & quiet-ra' options which
significantly help the syslog noise.

I think it's correct behaviour to advertise the link-local address.

Hope that helps.


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