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OpenVPN tunnel suddenly stops to work

Posted: Tue Aug 23, 2016 4:55 pm
by blmink
Hi, All,
I would appreciate if you could help me with the following issue:
I try to make an openvpn tunnel from my linux system to one of vpngate servers.
When my openvpn client connects to server all seems to work fine as expected.
I can ping whatever, surf the web through the tunnel and so on.
After a small time of inactivity (5-10 minutes) my side stops to receive reply packets in the tunnel, but I still can see dhcp broadcasts from Openvpn connection still alive and I can see periodic TLS soft resets in the log.
In such a case I have tried to ping, and any other addresses with no success.
tcpdump shows my outgoing packets, and no packets come back to me from tunnel.
When I disconnect from vpngate server ang reconnect again, all starts to work fine again.

I have tried different vpngate servers and has same issue with all of them.

Re: OpenVPN tunnel suddenly stops to work

Posted: Wed Sep 07, 2016 10:18 am
by blmink
No, that's not my case.
Host computer on the other side is active because openvpn tunnel is alive - I can see TLS soft resets on the tunnel, and I use tcpdump on the tunnel interface and can see dhcp broadcasts from
So, tunnel is up, but IP don't running.

If I try to reconnect to the _same_ host, all seem to work fine again for some time.