[Openvpn-users] Re: Issue routing among three VPNs

[Kurt <kurt.semba@xxxxxx>]

Borja Pacheco <bpacheco <at> acisa.com.es> writes:

> 
> 
> Dear all,
> I've configured my network using OpenVPN to establish connections among
different offices (nowadays three ones).
> The topology is based on an star, with a central hub in the main office, which
serves VPNs (OpenVPN Server) to the others offices (which acts as OpenVPN
clients, using fixed IP addresses).
> Graphically:
> Host B <---OpenVPN Tunnel---> Host A <---OpenVPN Tunnel---> Host C
> Host A, is located into our main office, and it's a quite complex firewall
attached to several subnetworks.
> Tunnels works fine when, from Host A (or its subnetworks) I try to reach any
host located at office B or C, or viceversa (from B or C to A).The problem
arises when I try to reach hosts from B to C (or C to B). 
> Host A forwards packets fine, and I noticed that this issue only happens when
routing from a tun device to another, when I route to another subnet which is
attached to an standard ethernet device, everything works fine.
> Does anybody knows if exists a limitation on it? is it a configuration issue?
Any idea?  :S
> Thanks in advance!!! 
> 

Hi Borja,

do you use two different tun interfaces on your Host A (like tun0 and tun1) or a
single one? 
Kurt




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