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Ticket ID: SIXXS #834565 Ticket Status: Resolved PoP: gblon02 - Goscomb Technologies (London)
Unable to reach PoP gblon02
![[gb]](/s/countries/gb.gif) Shadow Hawkins on Monday, 27 October 2008 16:01:40
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
Shadow Hawkins on Monday, 27 October 2008 16:04:26
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
The state of this ticket has been changed to resolved
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![[ch]](/s/countries/ch.gif)
on Monday, 27 October 2008 16:05:17
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