Keep-alive does not keep the connection alive

[Hendrik Friedel]

Hello,

yes, the Sever has a dynamic IP.

 >On the client, is the server peer ip correct?
Which entry are you refering to?
I assume
Endpoint = Dyn.IP:51820

Yes, but otherwise, the connection would not even be established, right?

For reference, here the complete client config:
[Interface]
Address = 10.192.122.3/32
PrivateKey = xx=

[Peer]
PublicKey = yy=
Endpoint = Dyn.IP:51820
AllowedIPs = 0.0.0.0/0
PersistentKeepalive = 25

Regards,
Hendrik



------ Originalnachricht ------
Von: "Ivan Labáth" <labawi-wg at matrix-dream.net>
An: "Hendrik Friedel" <hendrik at friedels.name>
Cc: "Vasili Pupkin" <diggest at gmail.com>; wireguard at lists.zx2c4.com
Gesendet: 26.08.2019 20:02:44
Betreff: Re: Keep-alive does not keep the connection alive

>Hello,
>
>I notice you are using dynamic ips for server.
>On the client, is the server peer ip correct?
>
>Regards,
>Ivan
>
>On Sun, Aug 25, 2019 at 06:44:53PM +0000, Hendrik Friedel wrote:
>>  Hello,
>>
>>  thanks for your reply.
>>  It is linux (Kernel 5.x) in both cases.
>>
>>  Regards,
>>  Hendrik
>>
>>  ------ Originalnachricht ------
>>  Von: "Vasili Pupkin" <diggest at gmail.com>
>>  An: "Hendrik Friedel" <hendrik at friedels.name>
>>  Cc: wireguard at lists.zx2c4.com
>>  Gesendet: 25.08.2019 17:59:59
>>  Betreff: Re: Keep-alive does not keep the connection alive
>>
>>  >What OS is running on client side? I have this issue on Win7 client,
>>  >can explain it further, it has nothing to do with keepalives though,
>>  >it is a bug in tun adapter implementation
>>  >
>>  >On Sun, Aug 25, 2019 at 6:38 PM Hendrik Friedel <hendrik at friedels.name> wrote:
>>  >>  I have a setup in which the Server IP is known, whereas the Client IP is changing. Thus, I rely on the Client to connect to the Server. I want the Client to keep the connection alive all the time though, so that the Server can also initiate a connection to the Server when needed. Both, client and server are behind a NAT/Router.
>>  >>  I would think, that the "PersistentKeepalive = 25" on the Client would ckeep the connection open. The connection works fine while used. But after a while, I cannot connect from the Server to the client anymore.
>>  >>  I would assume that a ping from the Client to the IP of the endpoint would help to re-alive the connection - but it does not.
>>  >>
>>  >>  Only after a wg-quick down and up all is fine again.
>>  >>
>>  >>  Below some more information.
>>  >>
>>  >>  Can you help me to find, what I am doing wrong?
>>
>>  _______________________________________________
>>  WireGuard mailing list
>>  WireGuard at lists.zx2c4.com
>>  https://lists.zx2c4.com/mailman/listinfo/wireguard
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