Hi, On Sun, Apr 19, 2015 at 11:54:10AM +1200, Jason Haar wrote: > On 19/04/15 01:55, Gert Doering wrote: > > OTOH, you'll see the behaviour in many mobile networks today: if there > > is no traffic inside OpenVPN for a given time, like "60 seconds" (yes, > > that short), it will time out the NAT entry and on the next packet, you > > end up with a new source port or source IP address > Doesn't "--ping" take care of that? Keepalive packets should mean the > TCP/UDP NAT session sees enough traffic to stop any NAT firewall from > timing it out (assuming ping is <30sec). That in turn should stop the > firewall needing to change port numbers
It does, but at the cost of battery life (having to wake up frequently,
send radio, etc.) - so you can have a much lower --ping frequency with
--peer-id.
Also, there's roaming between wifi and 3G, which will inevitably give
you a new IP address on the outside - nicely handled with --peer-id :-)
gert
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