Wireguard behind NAT

Ole-Morten Duesund olemd at glemt.net
Mon Sep 3 12:59:03 CEST 2018

On 9/3/18 12:55 PM, Roman Mamedov wrote:
> On Mon, 3 Sep 2018 12:43:19 +0200
> Ole-Morten Duesund <olemd at glemt.net> wrote:
>> Adding a "PersistentKeepalive = 5" to your config on SIDE_A_SERVER
>> should keep the connection up.
> Do you encounter any difference between 5, 25 and 55, only 5 works for you? If
> not, setting it to such a low interval seems wasteful, especially on
> LTE/mobile with possibly metered bandwidth and battery concerns.

"It works for me?" It's a balance between how long you're willing to 
wait for a possibly idle link if you need to connect from SIDE_B to SIDE_A.

It's tunable and you should probably test what's acceptable to you.

- OM

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