Newbie to Teltonika here. I decided as a test to jump from my "vanilla" OpenWrt router to a Teltonika RUTX08. However, I'm struggling to get something that takes me 5 minutes on vanilla OpenWrt to work. What I'm looking to do is the following:
Teltonika with local subnet of 192.168.22.1 as client to 3 Wireguard remote servers at other sites. All the other sites have different subnets (192.168.23.0, 192.168.24.0 & 192.168.25.0). I want the Teltonika to connect to the other sites and then, as with OpenWrt, use VPN policy routing to send any request for the other subnets via the VPN with all other traffic being handled as normal.
I've used this guide as a kind of basis for the setup: https://wiki.teltonika-networks.com/wikibase/index.php?title=OpenVPN_traffic_split&mobileaction=toggle_view_desktop
I've managed to get the tunnels established and got the VPN policy routing working but it's VERY temperamental and randomly works. As of now none of the traffic is routed down the tunnels and I've taken the Teltonika out of service which is a pity. On OpenWRT there is a Luci app which allows easy configuration of the policy routing but nothing for Teltonika and I understand the RUTX08 doesn't support vanilla OpenWRT?
Would be grateful of any advise from those more experience than me. Thanks in advance!