[YLUG] vpn and ssh

[Patrick Dupre]

Hello,

I though that I solved this problem but it shown up again.

When I connect to my campus machine through ssh.york.ac.uk I can
make a ssh back to my home machine (eschyle.homedns.org). But if
I connect to my campus machine through the vpn server I cannot make
the same connexion back (timeout)

If I compared the 2 traceroutes I cannot see any difference:

Thank for your help

Traceroute OK:
traceroute to eschyle.homedns.org (86.10.231.103), 30 hops max, 60 byte 
packets
  1  cd1rs0.york.ac.uk (144.32.52.142)  0.268 ms  0.519 ms  0.490 ms
  2  10.128.19.22 (10.128.19.22)  0.445 ms  0.728 ms  0.705 ms
  3  sentry3a-650.york.ac.uk (144.32.65.61)  3.758 ms  6.594 ms  6.546 ms
  4  194.81.1.2 (194.81.1.2)  11.337 ms  11.308 ms  11.283 ms
  5  so-1-1-0.leed-sbr1.ja.net (146.97.42.25)  11.627 ms  14.544 ms  14.519 
ms
  6  so-5-1-0.lond-sbr1.ja.net (146.97.33.98)  15.359 ms  15.280 ms  13.945 
ms
  7  so-6-0-0.lond-sbr4.ja.net (146.97.33.154)  14.583 ms  14.559 ms 
14.534 ms
  8  ae0.lond-gw-ixp4.ja.net (146.97.35.182)  14.498 ms  13.580 ms  11.364 
ms
  9  195.66.224.23 (195.66.224.23)  22.664 ms  7.177 ms  7.417 ms
10  gfd-bb-b-as0-0.network.virginmedia.net (62.253.185.77)  9.191 ms 
10.325 ms  11.800 ms
11  nth-bb-a-as5-0.network.virginmedia.net (212.43.163.182)  13.893 ms 
13.873 ms  14.519 ms
12  lee-bb-b-as1-0.network.virginmedia.net (213.105.175.134)  179.525 ms 
179.508 ms  179.485 ms
13  leed-core-1b-as0-0.network.virginmedia.net (213.105.175.70)  19.397 ms 
19.667 ms  19.647 ms
14  seac-cam-1b-pc201.network.virginmedia.net (195.182.175.178)  19.623 ms 
19.917 ms seac-cam-1b-pc200.network.virginmedia.net (195.182.175.174) 
20.716 ms
15  york-cmts-01-ge02.network.virginmedia.net (80.0.55.58)  20.694 ms 
20.670 ms  14.706 ms
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *


Traceroute when fails
traceroute to eschyle.homedns.org (86.10.231.103), 30 hops max, 60 byte 
packets
  1  cd1rs0.york.ac.uk (144.32.52.142)  0.318 ms  0.552 ms  0.524 ms
  2  10.128.19.22 (10.128.19.22)  0.476 ms  0.467 ms  0.442 ms
  3  sentry3a-650.york.ac.uk (144.32.65.61)  0.893 ms  1.129 ms  1.737 ms
  4  194.81.1.2 (194.81.1.2)  3.891 ms  4.355 ms  4.329 ms
  5  so-1-1-0.leed-sbr1.ja.net (146.97.42.25)  4.302 ms  4.279 ms  4.498 ms
  6  so-5-1-0.lond-sbr1.ja.net (146.97.33.98)  7.948 ms  7.860 ms  7.306 ms
  7  so-6-0-0.lond-sbr4.ja.net (146.97.33.154)  9.044 ms  9.024 ms  9.545 
ms
  8  ae0.lond-gw-ixp4.ja.net (146.97.35.182)  25.861 ms  25.844 ms  25.820 
ms
  9  195.66.224.23 (195.66.224.23)  8.704 ms  10.398 ms  10.375 ms
10  gfd-bb-b-as0-0.network.virginmedia.net (62.253.185.77)  12.105 ms 
14.061 ms  14.024 ms
11  nth-bb-a-as5-0.network.virginmedia.net (212.43.163.182)  15.229 ms 
15.208 ms  15.183 ms
12  lee-bb-b-as1-0.network.virginmedia.net (213.105.175.134)  13.744 ms 
13.728 ms  14.388 ms
13  leed-core-1b-as0-0.network.virginmedia.net (213.105.175.70)  14.598 ms 
14.578 ms  15.342 ms
14  seac-cam-1b-pc201.network.virginmedia.net (195.182.175.178)  15.319 ms 
15.354 ms seac-cam-1b-pc200.network.virginmedia.net (195.182.175.174) 
15.588 ms
15  york-cmts-01-ge02.network.virginmedia.net (80.0.55.58)  15.558 ms 
16.039 ms  16.322 ms
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *
  -- 
---
==========================================================================
  Patrick DUPRÉ                      |   |
  Department of Chemistry            |   |    Phone: (44)-(0)-1904-434384
  The University of York             |   |    Fax:   (44)-(0)-1904-432516
  Heslington                         |   |
  York YO10 5DD  United Kingdom      |   |    email: pd520 at york.ac.uk
==========================================================================