I'm having trouble setting up a new server (hosted at "hetzner") with latest XenServer 6.2. IPv4 is working fine, but I'm stuck at IPv6 Setup. What I got so far:
xen:
$> ip -6 addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: xenbr0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500
inet6 2a01:4f8:xxx:yyyy::2/112 scope global
valid_lft forever preferred_lft forever
$> ip -6 route
unreachable ::/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 0
unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 0
[...]
2a01:4f8:xxx:yyy::/112 dev xenbr0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0
unreachable 3ffe:ffff::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 0
fe80::1 dev xenbr0 metric 1024 mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev xenbr0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0
ff00::/8 dev xenbr0 metric 256 mtu 1500 advmss 1440 hoplimit 0
default via fe80::1 dev xenbr0 metric 1024 mtu 1500 advmss 1440 hoplimit 0
$> ping6 google.de
64 bytes from fra07s29-in-x17.1e100.net: icmp_seq=0 ttl=56 time=9.68 ms
also: firewall disabled.
VM (CentOS6):
$> ip -6 addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
inet6 2a01:4f8:xxx:yyy::3/64 scope global
valid_lft forever preferred_lft forever
$> ip -6 route
unreachable ::/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
[...]
default via 2a01:4f8:xxx:yyyy::2 dev eth0 metric 1024 mtu 1500 advmss 1440 hoplimit 4294967295
$> ping6 google.de
From 2a01:4f8:xxx:yyyy::2 icmp_seq=10 Destination unreachable: Address unreachable
$> ping 2a01:4f8:xxx:yyy::2
64 bytes from 2a01:4f8:xxx:yyyy::2: icmp_seq=1 ttl=64 time=1.15 ms
Firewall also disabled on this guest.
I followed the howto at http://wiki.hetzner.de/index.php/Citrix_XenServer/en#IPv6 and did all the mentioned steps and tried with different guests. My assigned IPv6-subnet is 2a01:4f8:xxx:yyyy::/64 and my IPv6-Gateway is fe80::1
Any help and further tips for diagnosis is appreciated.