Problem after disconnecting OpenVPN-client

Installing and Using OpenWrt
1

Hi. I am running both OpenVPN-client, and OpenVPN-server, on the same router. OpenVPN-server uses TCP, so policy in vpn-policy-routing has been configured. All works fine, but till the moment, the client disconnects. It results in messages in log: daemon.err openvpn(custom_config_client)[XXXX]: RESOLVE: Cannot resolve host address: server_link.com:YY (Try again) At the same time server stops to accept incoming connections, and no messages appear in log. How to reconfigure router to accept incoming connections? I added event in hotplug.d/iface:

#!/bin/sh
if [ "${ACTION}" = "ifdown" ] && (! ip a s tun0 up); then
        sleep 1800 && reboot
fi

Is there more elegant solution?

I have noticed, that after disconnect default route disappears. Restart of network results in accept of incoming connections, but I can not login to router from OpenVPN-tunnel via SSH. Additional restart of firewall results in reject of incoming connections.

Restart of vpn-policy-routing results in accept of incoming connections. It seems, that policy is very sensitive to reconfiguration.

2

The behavior is VERY STRANGE. I have not managed to make it work. I have tried to restart firewall, network, openvpn, vpn-policy-routing. The result is very bad: filter table in firewall remains the same, OpenVPN-connection is established, but SSH connection to IP of VPN-server does not work.

Router Xiaomi Mi 4C. It is very cheap router, but the operation is VERY UNSTABLE and VERY UNPREDICTABLE.

4

OK, thank you, but the problem is much deeper. So server stops to work also, that is the main problem. I will try another router, and write here.

1 Like
5

I have installed Padavan firmware on Xiaomi Router 4C, it works fine. At least now. It works much faster, than OpenWRT. So I will see, how it works.