ip6-localhost (::1) 2990.86 ms !H -> Why ?

From: NDSoftware (extml@ndsoftware.net)
Date: Sun Nov 18 2001 - 05:03:05 EST


Hello,

I have a problem on a machine (with Linux Debian Woody).
I can't ping (or trace) the next router or 6bone from it.

Trace 6bone from Woody:

traceroute to 6bone.net (3ffe:b00:c18:1::10) from 3ffe:8271:2101:1::1,
30 hops max, 16 byte packets
 1 ip6-localhost (::1) 2990.86 ms !H 2999.53 ms !H 2999.92 ms !

Routes on Woody:

Kernel IPv6 routing table
Destination Next Hop
Flags Metric Ref Use Iface
::1/128 ::
U 0 0 0 lo
3ffe:8271:2101:1::1/128 ::
U 0 8 1 lo
3ffe:8271:2101:1::/64 ::
UA 256 594 0 eth0
2000::/3 ::
U 1 0 0 eth0
fe80::2d0:70ff:fe01:811b/128 ::
U 0 5 0 lo
fe80::/10 ::
UA 256 0 0 eth0
ff00::/8 ::
UA 256 0 0 eth0
::/0 fe80::a0:2434:1d91
UGDA 1024 34 0 eth0

Beetween 6bone and Woody i have a router who have my IPv6 over IPv4
tunnel, this router work without problem and Potato (eth1) connected on
it too. Only Woody (eth2) don't work.

Routes on Router:

Kernel IPv6 routing table
Destination Next Hop
Flags Metric Ref Use Iface
::1/128 ::
U 0 4 0 lo
::10.0.0.1/128 ::
U 0 0 0 lo
::10.0.2.1/128 ::
U 0 0 0 lo
::10.0.10.1/128 ::
U 0 0 0 lo
::62.4.18.114/128 ::
U 0 0 0 lo
::62.4.22.213/128 ::
U 0 0 0 lo
::127.0.0.1/128 ::
U 0 0 0 lo
::/96 ::
U 256 0 0 sit0
2000::/16 fe80::d5ba:2246
UG 1 0 0 sit1
2001::/16 fe80::d5ba:2246
UG 1 0 0 sit1
2002::/16 fe80::d5ba:2246
UG 1 0 0 sit1
3ffe:8271:1000:20::1/128 ::
U 0 0 0 lo
3ffe:8271:1000:20::/64 ::
UA 256 0 0 eth0
3ffe:8271:1000:21::1/128 ::
U 0 89080 0 lo
3ffe:8271:1000:21::/64 ::
UA 256 0 0 eth1
3ffe:8271:1000:22::1/128 ::
U 0 21 0 lo
3ffe:8271:1000:22::/64 ::
UA 256 0 0 eth2
3ffe:8271:1000:2f::1/128 ::
U 0 0 0 lo
3ffe:8271:1000:30::1/128 3ffe:8271:1000:30::1
UC 0 2665 0 eth1
3ffe:8271:1000:30::/64 ::
U 1 0 0 eth1
3ffe:8271:1000:3f::/64 ::
U 1 0 0 eth1
3ffe:8271:10ff:11::2/128 ::
U 0 2162 0 lo
3ffe:8271:10ff:11::/64 ::
UA 256 18 1 sit1
3ffe:8271:2101:1::/64 ::
U 1 0 0 eth2
3ffe::/16 fe80::d5ba:2246
UG 1 312 0 sit1
fe80::a00:1/128 ::
U 0 0 0 lo
fe80::a00:201/128 ::
U 0 0 0 lo
fe80::a00:a01/128 ::
U 0 0 0 lo
fe80::3e04:1272/128 ::
U 0 0 0 lo
fe80::3e04:16d5/128 ::
U 0 0 0 lo
fe80::10:4b44:56cc/128 ::
U 0 0 0 lo
fe80::60:9795:cc55/128 ::
U 0 7082 0 lo
fe80::a0:2434:1d91/128 ::
U 0 5 0 lo
fe80::/10 ::
UA 256 0 0 eth0
fe80::/10 ::
UA 256 0 0 eth1
fe80::/10 ::
UA 256 0 0 eth2
fe80::/10 ::
UA 256 0 0 sit1
ff02::1/128 ff02::1
UAC 0 1 1 eth2
ff00::/8 ::
UA 256 0 0 eth0
ff00::/8 ::
UA 256 0 0 eth1
ff00::/8 ::
UA 256 0 0 eth2
ff00::/8 ::
UA 256 0 0 sit1

Trace Woody from router:

traceroute6 to 3ffe:8271:2101:1::1 (3ffe:8271:2101:1::1) from
3ffe:8271:1000:22::1, 30 hops max, 16 byte packets
 1 ip6-localhost (::1) 3004.78 ms !H 3000.65 ms !H 2999.21 ms !H

Trace Potato from router:

traceroute6 to 3ffe:8271:1000:30::1 (3ffe:8271:1000:30::1) from
3ffe:8271:1000:21::1, 30 hops max, 16 byte packets
 1 3ffe:8271:1000:30::1 (3ffe:8271:1000:30::1) 2.279 ms 2.13 ms
1.968 ms

With tcpdump i have get this:
21:38:02.882404 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6: neighbor sol:
who has 3ffe:8271:2101:1::1
21:38:03.882226 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6: neighbor sol:
who has 3ffe:8271:2101:1::1

Router: Linux 2.2.19 Debian Potato
Potato: Linux 2.2.19 Debian Potato
Woody: Linux 2.4.13 Debian Woody
All machines have last updates.

Who can help me ?
Any help are Welcome !!!!

How i can fix this problem ?

Thanks very very much,

Best Regards,

Nicolas

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This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:38 EST