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No packets from POP
![[de]](/s/countries/de.gif) Shadow Hawkins on Thursday, 03 March 2011 09:36:20
Hello folks,
i've a problem with my new server... it's ubuntu 10.04, i set up ipv6 with a very strange behaviour:
The tunnel doesn't work correctly, tcpdump (2 servers) says:
pings are encapsulated and transmitted to the POP and is received by the pinged server. The pinged server tries to answer and gets a 'destination unreachable' for the IPv6 ip.
What can i do?
No packets from POP
Provide a lot more details, as the above just states 'it does not work', but not in anyway what exactly does not work. Please read that "Reporting Problems Checklist" item on the contact page, without those things nobody can help you.
No packets from POP
Shadow Hawkins on Thursday, 03 March 2011 18:47:44
There are 2 servers, both with IPv6 via SIXXS tunnel, one with problems.
2a01:198:200:2af::2 <-- IP of working server
2a01:198:200:7c6::2 <-- IP of non working server
The working one can ping the whole IPv6 world, can be pinged...
Now, i tried to make the new server reachable via IPv6. I used the configuration example from the SIXXS website, but there's no connection to the rest of the world. I can't ping the POPs IPv6 address for example... aiccu test runs to step 5 (pinging the POP via IPv6) without problems.
I tried to check what's happening in the background: All IPv6 pings are encapsulated in TCP and sent to the POP (IPv4). The pinged IPv6 host receives the packages (tested with the server from 2a01:198:200:2af::2 and 2 other computers), tries to answer and gets a "no such route".
traceroute to 2a01:198:200:7c6::2 (2a01:198:200:7c6::2), 30 hops max, 40 byte packets (from 2a01:198:200:2af::2)
1 gw-688.dus-01.de.sixxs.net (2a01:198:200:2af::1) 12.659 ms 13.085 ms 13.513 ms
2 gw-688.dus-01.de.sixxs.net (2a01:198:200:2af::1) 13.999 ms !H 14.543 ms !H 14.938 ms !H
traceroute to 2a01:198:200:7c6::2 (2a01:198:200:7c6::2) from 2001:6f8:10e8:0:21a:73ff:feec:b047, 30 hops max, 24 byte packets
1 fritz.box (2001:6f8:10e8:0:21f:3fff:fec2:af13) 151.836 ms 1.108 ms 2.877 ms
2 gw-3078.ham-01.de.sixxs.net (2001:6f8:900:c05::1) 234.162 ms 25.812 ms 213.921 ms
3 vl101.cr21.isham.de.easynet.net (2001:6f8:800:1003::209:55) 25.773 ms 25.744 ms 219.784 ms
4 2001:6f8:1:0:87:86:71:240 (2001:6f8:1:0:87:86:71:240) 25.588 ms 26.84 ms 24.896 ms
5 2001:6f8:1:0:87:86:77:67 (2001:6f8:1:0:87:86:77:67) 24.315 ms 24.873 ms 24.46 ms
6 2001:6f8:1:0:86:87:77:81 (2001:6f8:1:0:86:87:77:81) 24.289 ms 24.943 ms 24.936 ms
7 2001:6f8:1:0:87:86:77:83 (2001:6f8:1:0:87:86:77:83) 25.166 ms 23.958 ms 25.711 ms
8 2001:6f8:1:0:86:87:77:95 (2001:6f8:1:0:86:87:77:95) 35.758 ms 233.488 ms *
9 2001:6f8:1:0:87:86:77:247 (2001:6f8:1:0:87:86:77:247) 133.407 ms 39.808 ms *
10 decix.r1.fra3.opencarrier.eu (2001:7f8::a2dc:0:1) 124.8 ms 35.964 ms 212.724 ms
11 oc-fra.dus.speedpartner.de (2001:7f8:3a:e102::2) 241.489 ms 239.956 ms 249.942 ms
12 dedus01.sixxs.net (2a01:198:200::2) 249.91 ms 208.126 ms 250.168 ms
13 dedus01.sixxs.net (2a01:198:200::2) 229.712 ms !H 238.089 ms !N 252.431 ms !N
Any idea what's going wrong here? Is it a problem if i changed the tunnel type? (earlier it was a dynamic tunnel...)
No packets from POP
I tried to check what's happening in the background: All IPv6 pings are encapsulated in TCP and sent to the POP (IPv4).
ehmm... SixXS does not have a single tunneling protocol that wraps inside TCP.
No packets from POP
Shadow Hawkins on Thursday, 03 March 2011 21:32:13
Oh... i'm not shure, if that was TCP... but it was shown by tcpdump ;)
No packets from POP
Carmen Sandiego on Thursday, 03 March 2011 23:03:45
I'm currently experiencing problems with dedus01 - probably its not your configuration thats the culprit.
No packets from POP
I don't see a problem report, do when there are problems file a ticket with adequate information so that things can be resolved, that is, if there is a problem in the first place on that end.
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![[ch]](/s/countries/ch.gif)
on Thursday, 03 March 2011 09:59:05
Posting is only allowed when you are