Comment 7 for bug 567131

We have the same problem, but only with every other prefix ~50% of the prefixes do not produce a segfault.

interface eth0
{
   AdvSendAdvert on;
   MaxRtrAdvInterval 30;

   prefix ::/64
   {
      AdvOnLink on;
      AdvAutonomous on;
      AdvRouterAddr off;
      AdvValidLifetime 300;
      AdvPreferredLifetime 120;
      DeprecatePrefix on;
   };
};