Rasp on 4G dongle to Rasp on static IP connection - OpenVPN

[se203]

Hi guys,

I have a bit of an issue:

I have set up an OpenVPN server on my home rasp.
Forwarded ports 22 and 1194 through router which is at 192.168.0.1 on ethernet. The home rasp connects through the router.
Created certificates.

I want to connect a remote Rasp to my home rasp through openvpn, the remote Rasp accesses the internet via 3G dongle which is set at 192.168.1.1.

Copied certificate files, the connection is established but I get an error:

Cannot open TUN/ TAP dev /dev/net/tun: no such device (errno=19)

Is it some bridge I have to add or am I missing something else? Maybe a firewall rule on client rasp to allow this?


Please help! Thanks!:))

[se203]

I've rebooted the rasp and got rid of this error, but I still have a problem - a push route is not allowed.