Additions to my previous comment:
- I have Ubuntu 14.04 LTS (and 16.04 LTS) 64 bit version set up as a router with DHCPv6 support.
- Client is vanilla Ubuntu 14.04 64 bit desktop.
The problems I described above apply to the server VM, where the solicit packet appears to be eaten by the kernel.
Additions to my previous comment:
- I have Ubuntu 14.04 LTS (and 16.04 LTS) 64 bit version set up as a router with DHCPv6 support.
- Client is vanilla Ubuntu 14.04 64 bit desktop.
The problems I described above apply to the server VM, where the solicit packet appears to be eaten by the kernel.