(gateway) [~] ifconfig ppp0 ppp0 Link encap:Point-to-Point Protocol inet addr:83.171.190.96 P-t-P:212.114.214.10 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 RX packets:280680 errors:0 dropped:0 overruns:0 frame:0 TX packets:295625 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:3 RX bytes:123252893 (117.5 MiB) TX bytes:330829050 (315.5 MiB) (gateway) [~] ip tunnel show sit0: ipv6/ip remote any local any ttl 64 nopmtudisc sixxs: ipv6/ip remote 62.245.150.2 local 83.171.190.96 ttl 64 (gateway) [~] ip -6 route show 2001:a60:f000:36::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 hoplimit 4294967295 2001:a60:f027:dead::/64 dev eth1 metric 256 mtu 1500 advmss 1220 hoplimit 4294967295 fe80::/64 dev eth1 metric 256 mtu 1500 advmss 1220 hoplimit 4294967295 fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1220 hoplimit 4294967295 fe80::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 hoplimit 4294967295 ff00::/8 dev eth1 metric 256 mtu 1500 advmss 1220 hoplimit 4294967295 ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1220 hoplimit 4294967295 ff00::/8 dev sixxs metric 256 mtu 1280 advmss 1220 hoplimit 4294967295 default via 2001:a60:f000:36::1 dev sixxs metric 1024 mtu 1280 advmss 1220 hoplimit 4294967295 (gateway) [~] ping6 2001:a60:f000:36::1 PING 2001:a60:f000:36::1(2001:a60:f000:36::1) 56 data bytes From 2001:a60:f000:36::2 icmp_seq=2 Destination unreachable: Address unreachable From 2001:a60:f000:36::2 icmp_seq=3 Destination unreachable: Address unreachable --- 2001:a60:f000:36::1 ping statistics --- 3 packets transmitted, 0 received, +2 errors, 100% packet loss, time 2000ms