6to4 tunnel: cannot ping6 to ipv6.google.com?
- by quanta
Hi folks,
Follow the Setup of 6to4 tunnel guide, I want to test ipv6 connectivity, but I cannot ping6 to ipv6.google.com.
Details below:
# traceroute 192.88.99.1
traceroute to 192.88.99.1 (192.88.99.1), 30 hops max, 40 byte packets
1 static.vdc.vn (123.30.53.1) 1.514 ms 2.622 ms 3.760 ms
2 static.vdc.vn (123.30.63.117) 0.608 ms 0.696 ms 0.735 ms
3 static.vdc.vn (123.30.63.101) 0.474 ms 0.477 ms 0.506 ms
4 203.162.231.214 (203.162.231.214) 11.327 ms 11.320 ms 11.312 ms
5 static.vdc.vn (222.255.165.34) 11.546 ms 11.684 ms 11.768 ms
6 203.162.217.26 (203.162.217.26) 42.460 ms 42.424 ms 42.401 ms
7 218.188.104.173 (218.188.104.173) 42.489 ms 42.462 ms 42.415 ms
8 218.189.5.10 (218.189.5.10) 42.613 ms 218.189.5.42 (218.189.5.42) 42.273 ms 42.300 ms
9 d1-26-224-143-118-on-nets.com (118.143.224.26) 205.752 ms d1-18-224-143-118-on-nets.com (118.143.224.18) 207.130 ms d1-14-224-143-118-on-nets.com (118.143.224.14) 206.970 ms
10 218.189.5.150 (218.189.5.150) 207.456 ms 206.349 ms 206.941 ms
11 * * *
12 10gigabitethernet2-1.core1.lax1.he.net (72.52.92.121) 214.087 ms 214.426 ms 214.818 ms
13 192.88.99.1 (192.88.99.1) 207.215 ms 199.270 ms 209.391 ms
# ifconfig tun6to4
tun6to4 Link encap:IPv6-in-IPv4
inet6 addr: 2002:x:x::/16 Scope:Global
inet6 addr: ::x.x.x.x/128 Scope:Compat
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:11 dropped:0 overruns:0 carrier:11
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
# iptunnel
sit0: ipv6/ip remote any local any ttl 64 nopmtudisc
tun6to4: ipv6/ip remote any local x.x.x.x ttl 64
# ip -6 route show
::/96 via :: dev tun6to4 metric 256 expires 21332777sec mtu 1480 advmss 1420 hoplimit 4294967295
2002::/16 dev tun6to4 metric 256 expires 21332794sec mtu 1480 advmss 1420 hoplimit 4294967295
fe80::/64 dev eth0 metric 256 expires 15674592sec mtu 1500 advmss 1440 hoplimit 4294967295
fe80::/64 dev eth1 metric 256 expires 15674597sec mtu 1500 advmss 1440 hoplimit 4294967295
fe80::/64 dev tun6to4 metric 256 expires 21332794sec mtu 1480 advmss 1420 hoplimit 4294967295
default via ::192.88.99.1 dev tun6to4 metric 1 expires 21332861sec mtu 1480 advmss 1420 hoplimit 4294967295
# ping6 -n -c 4 ipv6.google.com
PING ipv6.google.com(2404:6800:8005::68) 56 data bytes
From 2002:x:x:: icmp_seq=0 Destination unreachable: Address unreachable
From 2002:x:x:: icmp_seq=1 Destination unreachable: Address unreachable
From 2002:x:x:: icmp_seq=2 Destination unreachable: Address unreachable
From 2002:x:x:: icmp_seq=3 Destination unreachable: Address unreachable
--- ipv6.google.com ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 2999ms
What is my problem?
Thanks,