Router:

# cat /etc/radvd.conf
interface eth1
{
  AdvSendAdvert on;
  MaxRtrAdvInterval 30;

  prefix prefix fe80::/64
  {
    AdvOnLink on;
    AdvAutonomous on;
    AdvRouterAddr off;
    AdvValidLifetime 300;
    AdvPreferredLifetime 120;
  };
};


teredo    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          inet6 addr: fe80::ffff:ffff:ffff/64 Scope:Link
          inet6 addr: 2001:0:53aa:64c:304d:1ffb:a4ad:81c5/32 Scope:Global
          UP POINTOPOINT RUNNING NOARP  MTU:1280  Metric:1
          RX packets:198 errors:0 dropped:0 overruns:0 frame:0
          TX packets:317 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:45791 (44.7 KiB)  TX bytes:29885 (29.1 KiB)

eth1      Link encap:Ethernet  HWaddr 00:19:db:cb:18:1a
          inet addr:172.16.0.1  Bcast:172.16.0.255  Mask:255.255.255.0
          inet6 addr: fe80::219:dbff:fecb:181a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24784139 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35899505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4355148372 (4.0 GiB)  TX bytes:20348607745 (18.9 GiB)
          Interrupt:250 Base address:0xc000

Kliens:

# ip -6 route
fe80::/64 dev eth0  metric 256  mtu 1500 advmss 1440 hoplimit 4294967295
default via fe80::219:dbff:fecb:181a dev eth0  proto kernel  metric 1024  expires 0sec mtu 1500 advmss 1440 hoplimit 64

eth0      Link encap:Ethernet  HWaddr aa:00:04:00:0a:04
          inet addr:172.16.0.21  Bcast:172.16.0.255  Mask:255.255.255.0
          inet6 addr: fe80::a800:4ff:fe00:a04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:101170 errors:0 dropped:0 overruns:0 frame:0
          TX packets:86519 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:89094790 (84.9 MiB)  TX bytes:14129335 (13.4 MiB)
          Interrupt:219 Base address:0xe000

# ping6 -c 5 ipv6.google.com
PING ipv6.google.com(2a00:1450:8007::67) 56 data bytes
From fe80::219:dbff:fecb:181a icmp_seq=1 Destination unreachable: Beyond scope of source address
From fe80::219:dbff:fecb:181a icmp_seq=2 Destination unreachable: Beyond scope of source address
From fe80::219:dbff:fecb:181a icmp_seq=3 Destination unreachable: Beyond scope of source address
From fe80::219:dbff:fecb:181a icmp_seq=4 Destination unreachable: Beyond scope of source address
From fe80::219:dbff:fecb:181a icmp_seq=5 Destination unreachable: Beyond scope of source address

--- ipv6.google.com ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4014ms