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subseven
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Posts: 15
Joined: Mon Mar 31, 2014 4:56 pm

Problem with LAN <-> LAN access (openVPN)

Sun Apr 20, 2014 11:11 am

Hi,
my openVPN Tunnel is working and stable.
I'm accessing the tunnel via Viscosity on a Windows machine to the Server (Mikrotik RB951G-2HnD) via Internet.
I can ping the OVPN Server 10.2.6.1 on the other side but I can't ping the LAN behind the Server 10.2.5.0/24.
I think it's a routing problem.
I already searched for a solution and tried a lot but without success. :(
Maybe somebody have a running openVPN Tunnel and can help me out?
 
subseven
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Re: Problem with LAN <-> LAN access (openVPN)

Mon Apr 21, 2014 10:05 am

Hi,
Now I added a default Route at the viscosity windows Client. Now I can ping the Mikrotik Router IP but not the Clients in the same net. Any idea what do do?
 
barbosarodolfo
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Joined: Tue Nov 11, 2014 1:55 am

Re: Problem with LAN <-> LAN access (openVPN)

Wed Nov 26, 2014 8:50 pm

Hi,

I'm having the same issue on my network. I have a PFSense 2.1.5 (on our company HQ) acting as OpenVPN Server and RB750 (on Branches) running RouteOS 6.17 as a OpenVPN Cliente. My goal is connect HQ and Branch LANs but as I can't do a ping from LAN to LAN.
Here is our network architecture
_______________ ________________
| |10.240.26.1/29 10.240.26.2/32 | (RouterOS 6) |
LAN HQ - - - - - - - - |HQ PFSense |<-----------------------------------------------------> | Branch Office | - - - - - - - - - - - - LAN BRANCH
(192.168.50.0/24) |_______________| OVPN-TUNNEL |________________| (192.168.26.0/24)

If I'm on a machine of HQ LAN I can ping the following IP addresses: 192.168.50.253 (HQ LAN Gateway)
10.240.26.1
10.240.26.2

If I'm on a machine of BRANCH LAN I can ping the following IP addresses: 192.168.26.253 (BRANCH LAN Gateway)
10.240.26.2

As You can see, from the LAN HQ I can ping everything except BRANCH LAN and on the BRANCH LAN I can ping only the RouteOS 6 interfaces.

WHY I THINK THE PROBLEM IS ON OPENVPN
Using the same equipments I built a network with the same addresses but instead of using OpenVPN to connect the routes I used a ethernet cable and everything worked fine.


Thank's
Rod Barbosa