I'm having trouble configuring IPv6 routing under KVM virtualization, and I need your help!
On the host machine. It uses bridge (named br0) to give its guest machines Internet access.
On the guest machines running on the host, the IPv6 gateway is set as the IPv6 address of the host.
The problem is: on the virtual machine, "ping6 ipv6.google.com" gives:
ping6 ipv6.google.com PING ipv6.google.com(nuq04s29-in-x0e.1e100.net) 56 data bytes From [hostname] icmp_seq=3D1 Destination unreachable: Address unreachable
It seems that it can resolve the address but cannot reach the gateway.
"ip neigh show" gives the following output:
ip -6 neigh show fe80::212:f2ff:fe9a:1700 dev ens3 FAILED [IPv6 address of host machine] dev ens3 FAILED
While on the host machine, everything works fine.
Both systems are running latest CentOS 7.
I'm looking forward to your response.