Hi, it seems that my zone 2001:15c0:670c::/48 (R10815) is not routed to my tunnel T15106 as it should be. I'm not sure what exactly the problem is, but when I ping from the tunnel endpoint, everything works fine (tested on www.sixxs.net, irc.ipv6.cesnet.cz, and some others). When I ping from any address inside the subnet, packets are seen going into the tunnel, are seen on the remote machine which responds, but the packets never make it back to my router. Seems like the subnet is disabled somewhere, but on the web interface it says 'enabled' for both the tunnel and the subnet. Also when the remote machine responds, it gets this in return... 23:30:31.560676 IP6 2001:15c0:ffff:7::2 > 2a01:430:0:1a:XXXX: ICMP6, destination unreachable[|icmp6]