Virgin Media Community

[craigster1991]

Hey all

I'm having issues where any SSH connection to github will time out on my virgin connection. I've tried multiple github accounts with different SSH keys and all the same.

Those accounts and keys all work perfect if using mobile data tethered from my phone (EE).

Even the basic SSH test ssh -T git@github.com  will time out:

ssh: connect to host github.com port 22: Operation timed out

I phoned support for nearly an hour and basically no-one knows what SSH is (kinda fair) and after rounds of trying different things it's still not working...

Any ideas anyone?

[Roger_Gooner]

Can you do a trace route?

C:\>tracert github.com

Tracing route to github.com [140.82.121.3]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     *        *        *     Request timed out.
  3    19 ms    11 ms    10 ms  haye-core-2b-ae36-0.network.virginmedia.net [80.3.178.221]
  4    11 ms    10 ms    11 ms  haye-core-2a-ae1-0.network.virginmedia.net [80.3.176.177]
  5     *        *        *     Request timed out.
  6    11 ms    11 ms    17 ms  m686-mp2.cvx1-b.lis.dial.ntli.net [62.254.42.174]
  7    31 ms    22 ms    20 ms  213.46.175.26
  8    45 ms    22 ms    23 ms  ae22.cr2-fra6.ip4.gtt.net [213.200.117.138]
  9    25 ms    25 ms    25 ms  87.119.94.70
 10     *        *        *     Request timed out.
 11     *        *        *     Request timed out.
 12    25 ms    29 ms    21 ms  lb-140-82-121-3-fra.github.com [140.82.121.3]

Trace complete.

[craigster1991]

It would appear this fails too

$ traceroute github.com
traceroute to github.com (81.99.162.48), 30 hops max, 52 byte packets
 1  192.168.0.1 (192.168.0.1)  13.698 ms  3.336 ms  2.966 ms
 2  10.53.39.149 (10.53.39.149)  17.534 ms  12.081 ms  13.107 ms
 3  winn-core-2a-xe-032-0.network.virginmedia.net (62.253.121.141)  21.863 ms  13.868 ms  13.860 ms
 4  * * *
 5  lang-dclcore-1b-port-channel1.network.virginmedia.net (62.254.85.6)  18.537 ms  14.202 ms  23.325 ms
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

[Roger_Gooner]

Your github.com IP address is completely different to mine, here is what nslookup returns for VM's DNS.

C:\>nslookup github.com 194.168.4.100
Server:  cache1.service.virginmedia.net
Address:  194.168.4.100

Non-authoritative answer:
Name:    github.com
Address:  140.82.121.4

I use Quad9 which returns the same IP address.

C:\>nslookup github.com
Server:  dns9.quad9.net
Address:  9.9.9.9

Non-authoritative answer:
Name:    github.com
Address:  140.82.121.4

[ravenstar68]

@Roger_Gooner 

Virus Safe strikes again!

Doing a reverse lookup on the IP address:

C:\Users\timdu>nslookup 81.99.162.48
Server:  UnKnown
Address:  fe80::c206:c3ff:fe3b:cc8d

Name:    lang-sspiprxy.network.virginmedia.net
Address:  81.99.162.48

@ModTeam 

Do we really want to stop users using Github? - I don't think so.

[kingbenryi]

Sorry to jump on this thread but I have the same issue, except I already have WebSafe disabled and have custom DNS. github.com resolves to the correct IP but traceroute fails here:

1 192.168.0.1 (192.168.0.1) 3887.563 ms 3.150 ms 2.372 ms
2 * * *
3 nott-core-2b-xe-816-0.network.virginmedia.net (62.254.1.153) 9.911 ms 10.585 ms 13.658 ms
4 * * *
5 * * *
6 * * *
7 86.85-254-62.static.virginmediabusiness.co.uk (62.254.85.86) 24.794 ms 23.142 ms 23.171 ms
8 * * *
9 uk-lon01b-ri1-ae-23-0.aorta.net (84.116.135.30) 23.175 ms 21.199 ms
uk-lon01b-ri1-ae-25-0.aorta.net (84.116.136.102) 25.176 ms
10 ldn-b3-link.ip.twelve99.net (213.248.84.25) 30.727 ms 25.188 ms 21.822 ms
11 * ldn-bb1-link.ip.twelve99.net (62.115.120.74) 22.961 ms 24.058 ms
12 prs-bb2-link.ip.twelve99.net (62.115.133.239) 29.303 ms 28.271 ms
prs-bb1-link.ip.twelve99.net (62.115.135.25) 28.807 ms
13 ffm-bb1-link.ip.twelve99.net (62.115.123.12) 36.946 ms 40.163 ms 41.393 ms
14 ffm-b11-link.ip.twelve99.net (62.115.124.119) 38.269 ms * *
15 github-ic350972-ffm-b11.ip.twelve99-cust.net (62.115.182.171) 60.296 ms 34.161 ms 34.458 ms

Everything after this is just: * * *

Testing with:

ssh -vT git@github.com

This works fine on 4G but WiFi it fails.

All over SSH works, although it's definitely slower.

Any help would be appreciated as I need GitHub for work.!

[用心棒]

traceroute is not failing, try sending ICMP Echo packets instead of the default UDP, i.e. traceroute -I github.com

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[Roger_Gooner]

C:\>tracert github.com

Tracing route to github.com [140.82.121.4]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     *        *        *     Request timed out.
  3    10 ms    22 ms     9 ms  haye-core-2b-ae36-0.network.virginmedia.net [80.3.178.221]
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7    17 ms    25 ms    15 ms  86.85-254-62.static.virginmediabusiness.co.uk [62.254.85.86]
  8     *        *        *     Request timed out.
  9    16 ms    16 ms    15 ms  uk-lon01b-ri1-ae-23-0.aorta.net [84.116.135.30]
 10    17 ms    17 ms    17 ms  ldn-b3-link.ip.twelve99.net [213.248.84.25]
 11    19 ms    17 ms    16 ms  ldn-bb1-link.ip.twelve99.net [62.115.120.74]
 12    25 ms    26 ms    23 ms  prs-bb1-link.ip.twelve99.net [62.115.135.25]
 13    32 ms    33 ms     *     ffm-bb1-link.ip.twelve99.net [62.115.123.12]
 14     *        *        *     Request timed out.
 15    32 ms    34 ms    32 ms  github-ic350972-ffm-b11.ip.twelve99-cust.net [62.115.182.171]
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18    39 ms    30 ms    29 ms  lb-140-82-121-4-fra.github.com [140.82.121.4]

Trace complete.