Flaky and unstable VPN connection with RUTX10

[Martynas]

Hello @JP-Rotec,

Thank you for the additional clarification and provided topology. Your setup is much clearer now. The main goal is simply to reach the RUTX LAN (10.0.3.X) from the Fritzbox WAN-side network (10.0.0.X).

In this case, you don’t actually need a VPN. The same result can be achieved with simple static routing. A very similar setup was discussed and achieved in this thread here:

Two-way WAN-LAN connection

Hi, Thank you for your patience with me! I replicated the configuration, and on the WAN side, I can only access the Rut951’s web interface (LAN 192.168.113.1). I also tried another Rut951, starting from scratch, but nothing changes. I can’t reach any device connected to the LAN side (192.168.113.0). In the image I’m showing you, I’m trying to reach one of the devices with the IP address 192.168.113.101!! Hoping to resolve the issue, best regards. [Routes] [Tracert]

Basically, to achieve this, you’ll need a couple of things:

• On the Fritzbox, create a static route to destination 10.0.3.0/24 (RUTX LAN) via gateway 10.0.0.200 (RUTX10 WAN IP).
• On the RUTX10, add a static route to destination 10.0.0.0/24 (Fritzbox LAN side) via gateway 10.0.0.1 (Fritzbox LAN IP).
• In the RUTX firewall zone settings, allow forwarding from the WAN zone to the destination LAN zone:
  
  

I hope this helps or at least gives you some useful insight into your desired setup.

Best regards,