Ticket ID: SIXXS #834565 Ticket Status: Resolved PoP: gblon02 - Goscomb Technologies (London)
Unable to reach PoP gblon02
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I have read and followed the "Reporting Problems" section on the Contact page and am providing the following details for this report based on the list of items stated there:
NIC-HANDLE: FTA1-SIXXS
Tunnel: 16838
I noticed that I'm unable to reach anything externally to my device across the ipv6 tunnel.
Tunnel establishes successfully (or at least appears to):
root@achilles:~# ifconfig tun0
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: 2a01:348:6:12d::2/64 Scope:Global
inet6 addr: fe80::48:6:12d:2/64 Scope:Link
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1280 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:558 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:50151 (48.9 KB)
Routes populated in local table
root@achilles:~# route -A inet6
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
::1/128 :: Un 0 1 20 lo
2a01:348:6:12d::2/128 :: Un 0 1 0 lo
2a01:348:6:12d::/64 :: U 256 0 1 tun0
fe80::48:6:12d:2/128 :: Un 0 1 0 lo
fe80::213:72ff:fe99:dc51/128 :: Un 0 1 0 lo
fe80::/64 :: U 256 0 0 eth0
fe80::/64 :: U 256 0 0 tun0
ff00::/8 :: U 256 0 0 eth0
ff00::/8 :: U 256 0 0 tun0
::/0 2a01:348:6:12d::1 UG 1024 0 599 tun0
::/0 :: !n -1 1 67 lo
No filtering in place:
root@achilles:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ping6 to PoP:
root@achilles:~# ping6 2a01:348:6:12d::1
PING 2a01:348:6:12d::1(2a01:348:6:12d::1) 56 data bytes
--- 2a01:348:6:12d::1 ping statistics ---
17 packets transmitted, 0 received, 100% packet loss, time 15999ms
tcpdump shows outbound but no return packets:
root@achilles:~# tcpdump -i tun0
tcpdump: WARNING: arptype 65534 not supported by libpcap - falling back to cooked socket
tcpdump: WARNING: tun0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tun0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes
14:58:00.215714 IP6 cl-302.lon-02.gb.sixxs.net.57907 > b.gtld-servers.net.domain: 262+ A? com. (21)
14:58:05.215655 IP6 cl-302.lon-02.gb.sixxs.net.57907 > b.gtld-servers.net.domain: 262+ A? com. (21)
14:58:10.215709 IP6 cl-302.lon-02.gb.sixxs.net.57907 > b.gtld-servers.net.domain: 262+ A? com. (21)
14:58:15.222380 IP6 cl-302.lon-02.gb.sixxs.net.34572 > b.gtld-servers.net.domain: 44927+ A? com. (21)
14:58:20.222305 IP6 cl-302.lon-02.gb.sixxs.net.34572 > b.gtld-servers.net.domain: 44927+ A? com. (21)
5 packets captured
5 packets received by filter
0 packets dropped by kernel
No config changes... reloaded aiccu... restarted aiccu... rebooted device etc. all to no avail.
Unable to reach PoP gblon02
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I have read and followed the "Reporting Problems" section on the Contact page and am providing the following details for this report based on the list of items stated there:
Additional OS info:
root@achilles:~# uname -a
Linux achilles 2.6.24-19-generic #1 SMP Wed Aug 20 22:56:21 UTC 2008 i686 GNU/Linux
Device/tunnel has been operating fine up until this issue.
No ipv4 issues present
State change: resolved
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The state of this ticket has been changed to resolved
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