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Old 26-03-2010, 20:24   #1
Trident
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Join Date: Mar 2010
Posts: 11
Trident is an unknown quantity at this point
VPN Between two VM Connections

Hi Guys,

I am trying to setup a VPN between two VM connections, but no luck so far.

Connection A is a 20MB cable BB service

Connection B is a 50MB cable BB service

The thing that I think is causing me issues is I cant seem to get any traffic to go between the two connections. I think this might be because they are both on the same CMTS. So im not sure if VM would block traffic between two connections on the same CMTS?

Here is Connection A tracert

Code:
Tracing route to bbc.co.uk [212.58.224.138] over a maximum of 30 hops:

  1     2 ms     2 ms     2 ms  cluster1.gate5.logitech.co.uk [10.13.0.2]
  2    10 ms    11 ms    15 ms  glfd-cmts-05-lback-20.network.virginmedia.net [82.8.176.1]
  3    10 ms     7 ms    16 ms  glfd-core-1a-ge-300-1637.network.virginmedia.net [62.254.207.89]
  4     7 ms    11 ms     8 ms  glfd-bb-1a-ge-200-0.network.virginmedia.net [213.105.175.85]
  5     7 ms    20 ms    10 ms  glfd-bb-1b-ae0-0.network.virginmedia.net [213.105.172.6]
  6     9 ms     7 ms    11 ms  redb-ic-1-as0-0.network.virginmedia.net [62.253.185.78]
  7    10 ms    11 ms    11 ms  212.58.239.249
  8    11 ms    11 ms    15 ms  212.58.238.133
  9    10 ms    15 ms    15 ms  virtual-vip.thdo.bbc.co.uk [212.58.224.138]

Trace complete.
And here is Connection B tracert

Code:
Tracing route to bbc.co.uk [212.58.224.138] over a maximum of 30 hops:

  1     3 ms     3 ms     3 ms  cluster2.gate1.logitech.co.uk [192.168.20.2]
  2    13 ms    15 ms    15 ms  glfd-cmts-05-lback-20.network.virginmedia.net [82.8.176.1]
  3    16 ms    13 ms    15 ms  glfd-core-1a-ge-300-1637.network.virginmedia.net [62.254.207.89]
  4    14 ms    15 ms    16 ms  glfd-bb-1a-ge-200-0.network.virginmedia.net [213.105.175.85]
  5    13 ms    15 ms    15 ms  glfd-bb-1b-ae0-0.network.virginmedia.net [213.105.172.6]
  6    15 ms    14 ms    16 ms  redb-ic-1-as0-0.network.virginmedia.net [62.253.185.78]
  7    19 ms    51 ms   214 ms  212.58.239.249
  8    16 ms    15 ms    15 ms  212.58.238.149
  9    16 ms    14 ms    15 ms  virtual-vip.thdo.bbc.co.uk [212.58.224.138]

Trace complete.
As you can see they are both on the same CMTS.

If I try and VPN from B to A I cant see any packets hitting A's firewall, but if I connect from a TalkTalk ADSL connection to A I can establish a VPN.

If I try and ping A from B I cant see any ICMP packets hitting A's firewall either. Again I can see the ICMP traffic if I try and ping A from the ADSL connection.

Any thoughts?
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