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Re: [Openvpn-users] OpenVPN on Virtual Servers

  • Subject: Re: [Openvpn-users] OpenVPN on Virtual Servers
  • From: David Goldsmith <dgoldsmith@xxxxxxxx>
  • Date: Thu, 10 May 2007 15:08:05 -0400

Hash: SHA1

David Goldsmith wrote:
> Dennis Muhlestein wrote:
>> I have a rather strange problem.  I have a production environment with
>> a number of servers that host all our applications on virtual servers
>> (Xen).  The physical machines don't run any application software.  I
>> installed OpenVPN on one of the Virtual servers.  When connecting to
>> the VPN, I can connect to any server in our network except other
>> virtual machines that are on the same physical machine as the vpn
>> host.  If I ssh into the vpn host, from there I can connect to those
>> machines just fine, it's only through the vpn that it doesn't work.
>> It looks like it would be some type of firewall issue, but there isn't
>> any firewall software running on the machines.
>> Does anyone have a suggestion as to where I might look for hints.
>> I've watched messages in the openvpn.log but nothing jumps out as a
>> possible problem source.
>> Thanks
>> Dennis
> Probably an issue with proxy ARP and the Xen network bridge.

Here is a couple possible references for OpenVPN + Xen combinations


  - this article deals with Vserver (antoher virtualization option) but
    may have related issues

- --
David Goldsmith
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