ipv6 problem

[pepe]

I have 2001:14b8:10:402::/64 ipv6 from my isp and I cant get it working.
Ifconfig should be ok:
backup# ifconfig rl0 inet6

rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=8<VLAN_MTU>
        inet6 2001:14b8:10:402:2::1 prefixlen 64

default gateway is set to 2001:14b8:10:402::1. When I try to traceroute irc
server for example
I get this:

traceroute6: Warning: irc.cc.tut.fi has multiple addresses; using
2001:708:310:4952:4320:5365:7276:6572
traceroute6 to irc.cc.tut.fi (2001:708:310:4952:4320:5365:7276:6572) from
2001:14b8:10:402:2::1, 64 hops max, 12 byte packets
 1  2001:14b8:10:402:2::1  2026.908 ms !A  2999.587 ms !A  3000.423 ms !A

So. Could this be problem in my configs or is this because of something
wrong at the isp side?

-- 
pepe