[Dnsmasq-discuss] No RA and no response to RTR-SOLICIT

Enrico Tröger enrico.troeger at uvena.de
Sun Jul 28 19:13:49 BST 2013


Hi,

I want to use Dnsmasq to act as DHCPv6 server and to send router
advertisments.
My ISP provides me with a /64 IPv6 net over PPPoE.

Normal DHCP works well but I can't get DHCPv6 working.

I don't see any RTR-ADVERT messages in the logs nor do I see any
response from Dnsmasq to RTR-SOLICIT requests (I do see the RTR-SOLICIT
request itself in the logs).

(Probably) Relevant config parts:
interface=eth0
except-interface=ppp0
dhcp-range=2001:1234:1234:1234:10:0:1::,constructor:eth0,ra-names,slaac,64,48h
enable-ra


Startup log entries:
dnsmasq[15373]: started, version 2.66 cachesize 4096
dnsmasq[15373]: compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP
DHCPv6 no-Lua TFTP conntrack ipset auth
dnsmasq-dhcp[15373]: DHCP, IP range 10.0.1.4 -- 10.0.1.240, lease time 2d
dnsmasq-dhcp[15373]: DHCPv4-derived IPv6 names on
2001:1234:1234:1234:10:0:1:0, template for eth0
dnsmasq-dhcp[15373]: router advertisement on
2001:1234:1234:1234:10:0:1:0, template for eth0
dnsmasq-dhcp[15373]: IPv6 router advertisement enabled

I tried with to request a IP address with dhcpcd and Dnsmasq then logs
the RTR-SOLICIT requests but doesn't seem to send an answer.
Also, as I read on the net, I probably should see some router
advertisements from time to time, but I don't see anything.

On the host the IPv6 is configured as 2001:1234:1234:1234::4002/64 on
eth0 which is the LAN interface. Does the routing table come into as
well for Dnsmasq?

I guess it's just a configuration problem but even after many searching
in the net, I don't find what's wrong in my setup.

I checked ip6tables but there are no relevant rules set up. And I also
tried radvd and it worked but I'd prefer to use Dnsmasq as it is cool
and already running :).

I'm out of ideas and kindly ask for some pointers.


Thanks,
Enrico

-- 
Get my GPG key from http://www.uvena.de/pub.asc

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