DHCPv6 Server on KVM virtual host

[rbasukala]

Is there anyone running DHCPv6 server on RHEL 6 kvm virtual host?

I had configured dhcp server on it, the virtual hosts on the same physical host have no probelm getting IPv6 address from dhcp. I also had other physical servers and they are not getting IPv6 from the configured DHCPv6 server.

It looks like dhcp server is sending reply:

Jan 31 08:57:51 localhost dhcpd: Sending Reply to fe80::5054:ff:fe27:3ad8 port 546
Jan 31 08:57:57 localhost dhcpd: Solicit message from fe80::218:8bff:fe72:a3b1 port 546, transaction ID 0x7BB7A800

but hosts had problem getting IPv6 address.

Do you any idea what the problem might be?

Thanks a lot in advance.

Thanks!
-Ramesh

[jpopelka]

Maybe iptables on clients' machines ?
Try to temporarily swich iptables off (service ip6tables stop).

[Lazydog]

There are two sides to every story. Check the physical server logs too just maybe the answer will be in there.

[rbasukala]

I had selinux disabled on client machine and looks like it is working now for linux clients. I am trying with windows 7 client machine now and it is not working. It is configuring automatically using router prefix advertisement which seems to be default on it. I am using router prefix advertisement for default gateway for dhcp clients.

Anyone has suggestion on configuring linux dhcpv6 server for windows client?

-Ramesh