[Dnsmasq-discuss] dhcpv6 and RA

[Stéphane Guedon]

Hello

I want to make ipv6 work on dhcp in the network, to make possible 
addressing with hostnames. I have seen it works well with some of the 
lan hosts (this hosts get ipv6 and are registreted in the local 
domain).

But one of my client doesn't behave correctly :

no hostname is registered
after sometime, the default ipv6 route disapears (the networking 
process disable accept_ra in the kernel, which erase the route).

This host is a debian jessie/testing. When I ask him to make its 
address with "auto", default route stays :

auto eth0
allow-hotplug eth0
iface eth0 inet dhcp
iface eth0 inet6 auto

When I ask dhcp, default route is erased 15 minutes after boot like 
said above.

My question is : is it related to dnsmasq ? maybe I placed a wrong 
option which tells dhcpv6 clients to disable router adv accepting ?

Here is my config related to the topic :

interface=re0
dhcp-range=192.168.87.50,192.168.87.200,255.255.255.0,12h
dhcp-range=2001:16d8:dd00:8207::100, 2001:16d8:dd00:8207::8000,ra-
names
enable-ra
dhcp-option=option:router,192.168.87.1
dhcp-option=option:ntp-server,0.0.0.0
dhcp-option=option:dns-server,192.168.87.3,192.168.87.5,208.67.222.222
dhcp-option=option:domain-search,22decembre.eu

dhcp-option=option6:dns-server,[::],[2620:0:ccd::2]
dhcp-option=option6:ntp-server,[::]
dhcp-option=option6:domain-search,22decembre.eu
dhcp-authoritative

Thanks for any help on the topic.