no route to host but ping

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no route to host but ping

Postby frelacia » January 13th, 2011, 11:42 am

Hi,

I´ve installed sabnzbd+ v0.5.6. I´m already connected to gogonet ipv6. I´m able to ping the newsserver:

Code: Select all
ping6 reader.ipv6.xsnews.nl
PING reader.ipv6.xsnews.nl(2001:67c:174:101::4) 56 data bytes
64 bytes from 2001:67c:174:101::4: icmp_seq=1 ttl=58 time=22.7 ms
64 bytes from 2001:67c:174:101::4: icmp_seq=2 ttl=58 time=12.8 ms
64 bytes from 2001:67c:174:101::4: icmp_seq=3 ttl=58 time=13.1 ms
64 bytes from 2001:67c:174:101::4: icmp_seq=4 ttl=58 time=11.0 ms
^C
--- reader.ipv6.xsnews.nl ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 11.028/14.939/22.714/4.562 ms
 

but after starting sabnzbd+ I get the message "no route to host" like this:

Code: Select all
2011-01-13 16:37:51,490::INFO::[misc:570] Lauching browser with http://localhost:8080/sabnzbd
2011-01-13 16:37:51,498::DEBUG::[misc:647] Version check disabled by Ubuntu/Debian packaging
2011-01-13 16:37:52,280::INFO::[downloader:465] 1@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,312::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 1@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,313::INFO::[downloader:465] 2@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,331::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 2@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,332::INFO::[downloader:465] 3@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,358::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 3@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,359::INFO::[downloader:465] 4@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,393::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 4@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,394::INFO::[downloader:465] 5@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,444::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 5@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,445::INFO::[downloader:465] 6@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,472::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 6@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,473::INFO::[downloader:465] 7@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,500::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 7@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,501::INFO::[downloader:465] 8@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,535::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 8@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,536::INFO::[downloader:465] 9@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,562::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 9@reader.ipv6.xsnews.nl:119
2011-01-13 16:37:52,563::INFO::[downloader:465] 10@reader.ipv6.xsnews.nl:119: Initiating connection
2011-01-13 16:37:52,594::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 10@reader.ipv6.xsnews.nl:119


Could someone help?

Thanks
frelacia
frelacia
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Re: no route to host but ping

Postby sander » January 13th, 2011, 12:32 pm

Two possible causes:

1) usenet traffic over your IPv6 tunnel is blocked, OR
2) your python/sabnzbd does not understand IPv6

But first: is this a full Debian/Ubuntu on a PC, or on a NAS/small device?

Things to check:
What does "telnet reader.ipv6.xsnews.nl 119" give you?
What happens when you add newszilla6.xs4all.nl (no account needed) to SAB's servers?
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Re: no route to host but ping

Postby frelacia » January 13th, 2011, 12:50 pm

yes, it is a full Debian/Ubuntu on a PC.

the telnet request gave: 
Code: Select all
telnet reader.ipv6.xsnews.nl 119
Trying 2001:67c:174:101::2...
Trying 2001:67c:174:101::3...
Trying 2001:67c:174:101::4...
Trying 2001:67c:174:101::5...
telnet: Unable to connect to remote host: No route to host


The behavior with the other server is the same like reader.ipv6.xsnews.nl :
Code: Select all
2011-01-13 17:46:44,332::INFO::[misc:570] Lauching browser with http://localhost:8080/sabnzbd
2011-01-13 17:46:44,342::DEBUG::[misc:647] Version check disabled by Ubuntu/Debian packaging
2011-01-13 17:46:45,124::INFO::[downloader:465] 1@newszilla6.xs4all.nl:119: Initiating connection
2011-01-13 17:46:45,165::INFO::[newswrapper:215] Failed to connect: (110, '[Errno 113] No route to host') 1@newszilla6.xs4all.nl:119
... 10 times ...


Thanks for answering
frelacia
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Re: no route to host but ping

Postby sander » January 13th, 2011, 1:18 pm

OK. Let's check whether gogonet is blocking NNTP traffic:

disable gogonet (via /etc/init.d/???)
enable teredo/miredo: sudo apt-get install miredo
check gogonet is disabled (see your ifconfig), check teredo/miredo is working via http://test-ipv6.com/ ; you should have a 2001:0: address
If everything is OK, restart SABnzbd and check if it works ....


Here's the proof that xsnews works over teredo/miredo:

Code: Select all
sander@quirinius:~$ telnet reader.ipv6.xsnews.nl 119
Trying 2001:67c:174:101::2...
Connected to reader.ipv6.xsnews.nl.
Escape character is '^]'.
201 reader.ipv6.xsnews.nl NNRP Service Ready (no posting).
quit
205 Transferred 60 bytes in 0 articles, 0 groups.  Disconnecting.
Connection closed by foreign host.
sander@quirinius:~$
Last edited by sander on January 13th, 2011, 1:22 pm, edited 1 time in total.
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Re: no route to host but ping

Postby sander » January 13th, 2011, 1:47 pm

PS:

If disabling gogonet is too difficult for you, here's a nice-to-know:

if you have multiple (ipv6) interface because of multiple ipv6 tunnels (miredo AND gogonet), you can specify the ipv6 tunnel you want to test with telnet using the parameter -b:

telnet -b 2001:0:abcd: ipv6.google.com http

telnet -b 2001:0:abcd: newszilla6.xs4all.nl nntp

You have to fill out your local IPv6 address, which of course depends on the tunnel (interface)
Last edited by sander on January 13th, 2011, 1:50 pm, edited 1 time in total.
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Re: no route to host but ping

Postby frelacia » January 14th, 2011, 2:20 am

ok, now it works.

I disabled the gogonet tunnel via ifconfig:

Code: Select all
sudo ifconfig tun down

(tun is the name of the gogonet interface)

After installing the other tunnelclient (miredo) it works
Thank you very much!
frelacia
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Re: no route to host but ping

Postby sander » January 14th, 2011, 2:46 am

frelacia wrote:ok, now it works.

I disabled the gogonet tunnel via ifconfig:

Code: Select all
sudo ifconfig tun down

(tun is the name of the gogonet interface)

After installing the other tunnelclient (miredo) it works
Thank you very much!


OK. Conclusion: gogonet is blocking nntp 119 traffic.  :(

One thing to check: after a reboot, check the gogonet tunnel is not back again. Maybe better to deinstall gogonet.
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