R. Scott Belford
Wed, 28 Apr 2010 16:36:11 -0700
On Wed, Apr 28, 2010 at 1:29 PM, Antonio Querubin <t...@lava.net> wrote: > On Wed, 28 Apr 2010, R. Scott Belford wrote: > >>> This is a good one. We have an OS change, same NIC, all other variables >>> the >>> same. I think I need a static entry in /etc/network/interfaces and that >>> this >>> was something automagically handled by centos. It sounds like I don't >>> need a >>> gateway setting, though. > > BTW, what shows up as your IPv6 gateway in your IPv6 route table? Can you > even ping that? Do a 'netstat -rnA inet6'. Look for the default IPv6 route > (::/0). Take the next hop address and do a 'ping6 -I eth0 ...'.
mirror:/etc/network# netstat -rnA inet6
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
2607:f278:4101:12::/64 :: UAe 256 0 5009 eth0
fe80::/64 :: U 256 0 0 eth0
::/0 fe80::217:c5ff:fe0f:6ced UGDAe 1024 0
42541 eth0
::/0 fe80::209:7bff:fedc:400 UGDAe 1024 0
0 eth0
::/0 :: !n -1 1 47551 lo
::1/128 :: Un 0 1 56 lo
2607:f278:4101:12:204:76ff:fef1:edc8/128 :: Un
0 1 96607 lo
fe80::204:76ff:fef1:edc8/128 :: Un 0 1 35686 lo
ff00::/8 :: U 256 0 0 eth0
::/0 :: !n -1 1 47551 lo
mirror:/etc/network# netstat -rnA inet6
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
2607:f278:4101:12::/64 :: UAe 256 0 5010 eth0
fe80::/64 :: U 256 0 0 eth0
::/0 fe80::217:c5ff:fe0f:6ced UGDAe 1024 0
42542 eth0
::/0 fe80::209:7bff:fedc:400 UGDAe 1024 0
0 eth0
::/0 :: !n -1 1 47553 lo
::1/128 :: Un 0 1 56 lo
2607:f278:4101:12:204:76ff:fef1:edc8/128 :: Un
0 1 96610 lo
fe80::204:76ff:fef1:edc8/128 :: Un 0 1 35687 lo
ff00::/8 :: U 256 0 0 eth0
::/0 :: !n -1 1 47553 lo
mirror:/etc/network# ping6 -l eth0 fe80::217:c5ff:fe0f:6ced
ping: bad preload value, should be 1..65536
mirror:/etc/network# ping6 -I eth0 fe80::217:c5ff:fe0f:6ced
PING fe80::217:c5ff:fe0f:6ced(fe80::217:c5ff:fe0f:6ced) from
fe80::204:76ff:fef1:edc8 eth0: 56 data bytes
64 bytes from fe80::217:c5ff:fe0f:6ced: icmp_seq=1 ttl=64 time=0.778 ms
64 bytes from fe80::217:c5ff:fe0f:6ced: icmp_seq=2 ttl=64 time=0.428 ms
64 bytes from fe80::217:c5ff:fe0f:6ced: icmp_seq=3 ttl=64 time=0.549 ms
64 bytes from fe80::217:c5ff:fe0f:6ced: icmp_seq=4 ttl=64 time=0.442 ms
^C
--- fe80::217:c5ff:fe0f:6ced ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.428/0.549/0.778/0.141 ms
mirror:/etc/network# ping6 -I eth0 fe80::209:7bff:fedc:400
PING fe80::209:7bff:fedc:400(fe80::209:7bff:fedc:400) from
fe80::204:76ff:fef1:edc8 eth0: 56 data bytes
64 bytes from fe80::209:7bff:fedc:400: icmp_seq=1 ttl=64 time=1.08 ms
64 bytes from fe80::209:7bff:fedc:400: icmp_seq=2 ttl=64 time=0.408 ms
64 bytes from fe80::209:7bff:fedc:400: icmp_seq=3 ttl=64 time=0.449 ms
^C
--- fe80::209:7bff:fedc:400 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 0.408/0.648/1.087/0.310 ms
For those following along, there is some good reading here
http://www.ruwenzori.net/ipv6/Jims_LAN_IPv6_global_connectivity_howto.html
>
>
> Antonio Querubin
> 808-545-5282 x3003
> e-mail/xmpp: t...@lava.net
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