roaming and ddns dynamic ip

[Matthias Urlichs]

On 22.11.2017 17:00, d tbsky wrote:
> when client is behind firewall via nat to internet, and server has
> dynamic ip, I don't think keepalive will help. since the changed
> server can not connect to client, it needs client to initial the
> connection. under openvpn, keepalive can detect broken link and try to
> restart itself, then client can reconnect to server automatically.

That situation calls for userspace (on the client) to monitor the
connection and update the peer address, if it changed.

The kernel side's job would be to be sufficiently monitor-able via
netlink – polling is evil – so that a userspace tool can actually do this.

-- 
-- Matthias Urlichs