Comment 12 for bug 158481

I'm running Ubuntu 11.04 on a Dell Vostro 1510 laptop.
I have an HE IPv6 tunnel connected to the external address of my home gateway which is an Ubuntu server 10.04.2 LTS.
I have IPv6 enabled on my internal network via radvd on the Ubuntu server. The radvd config is below (sanitised):

interface eth1
  {
     AdvSendAdvert on;
     prefix xxxxxxxxxxxxxxxxx/64
       {
          AdvOnLink on;
          AdvAutonomous on;
          AdvRouterAddr on;
       };
     RDNSS 2001:470:20::2 {};
};

radvd responds to IPv6 NDP (Network Dicovery Protocol) router enquiries by supplying the router address and network prefix information. This allows the wireless NIC to auto-discover it's v6 address network prefix then generate a unique address using EUI-64.

Very regularly my wireless connection disconnects then immediately reconnects - normally it's 10 minutes almost to the second but sometimes it doesnt disconnect at all.

The default time for MaxRtrAdvInterval in radvd is 600 seconds - coincidence?

If I set my IPv6 network-manager settings to 'ignore' the disconnect doesnt seem to happen.

Let me know if there is other information you need.