"use of closed network connection"

[osvinenko 0]

I am trying to use a 3rd party Wireguard client. It seems to work, but spams these lines in the log a lot. I am not asking for help with troubleshooting, I only want to know if it is OK to continue using it as is. It does not break something, does it?
 

2023/09/06 14:12:50 read tcp 127.0.0.1:25345->127.0.0.1:55969: use of closed network connection
2023/09/06 14:12:50 read tcp 127.0.0.1:25345->127.0.0.1:55968: use of closed network connection
2023/09/06 14:13:33 read tcp 127.0.0.1:25345->127.0.0.1:55971: use of closed network connection
2023/09/06 14:15:09 read tcp 127.0.0.1:25345->127.0.0.1:55973: use of closed network connection
2023/09/06 14:15:41 read tcp 127.0.0.1:25345->127.0.0.1:55980: use of closed network connection
2023/09/06 14:15:44 read tcp 127.0.0.1:25345->127.0.0.1:55975: use of closed network connection
2023/09/06 14:16:19 read tcp 127.0.0.1:25345->127.0.0.1:55976: use of closed network connection
2023/09/06 14:16:29 read tcp 127.0.0.1:25345->127.0.0.1:55906: use of closed network connection
2023/09/06 14:16:43 read tcp 127.0.0.1:25345->127.0.0.1:55946: use of closed network connection
2023/09/06 14:17:06 read tcp 127.0.0.1:25345->127.0.0.1:55941: use of closed network connection
2023/09/06 14:17:16 read tcp 127.0.0.1:25345->127.0.0.1:55951: use of closed network connection
2023/09/06 14:17:20 read tcp 127.0.0.1:25345->127.0.0.1:55881: use of closed network connection
2023/09/06 14:17:38 read tcp 127.0.0.1:25345->127.0.0.1:56005: use of closed network connection
2023/09/06 14:17:38 read tcp 127.0.0.1:25345->127.0.0.1:56006: use of closed network connection
2023/09/06 14:19:08 read tcp 127.0.0.1:25345->127.0.0.1:55875: use of closed network connection
2023/09/06 14:19:40 read tcp 127.0.0.1:25345->127.0.0.1:56010: use of closed network connection
2023/09/06 14:22:50 read tcp 127.0.0.1:25345->127.0.0.1:56021: use of closed network connection
2023/09/06 14:22:50 read tcp 127.0.0.1:25345->127.0.0.1:56022: use of closed network connection
2023/09/06 14:26:51 read tcp 127.0.0.1:25345->127.0.0.1:56043: use of closed network connection
2023/09/06 14:27:06 read tcp 127.0.0.1:25345->127.0.0.1:56041: use of closed network connection
2023/09/06 14:27:27 read tcp 127.0.0.1:25345->127.0.0.1:56050: use of closed network connection
2023/09/06 14:27:27 read tcp 127.0.0.1:25345->127.0.0.1:56051: use of closed network connection
2023/09/06 14:27:52 read tcp 127.0.0.1:25345->127.0.0.1:56045: use of closed network connection
2023/09/06 14:27:53 read tcp 127.0.0.1:25345->127.0.0.1:56046: use of closed network connection
2023/09/06 14:27:53 read tcp 127.0.0.1:25345->127.0.0.1:56049: use of closed network connection
2023/09/06 14:27:53 read tcp 127.0.0.1:25345->127.0.0.1:56048: use of closed network connection
2023/09/06 14:28:28 read tcp 127.0.0.1:25345->127.0.0.1:56053: use of closed network connection
2023/09/06 14:28:28 read tcp 127.0.0.1:25345->127.0.0.1:56054: use of closed network connection
2023/09/06 14:28:28 read tcp 127.0.0.1:25345->127.0.0.1:56052: use of closed network connection
2023/09/06 14:29:49 read tcp 127.0.0.1:25345->127.0.0.1:56059: use of closed network connection
2023/09/06 14:30:38 read tcp 127.0.0.1:25345->127.0.0.1:56071: use of closed network connection
2023/09/06 14:31:03 read tcp 127.0.0.1:25345->127.0.0.1:56060: use of closed network connection
2023/09/06 14:31:03 read tcp 127.0.0.1:25345->127.0.0.1:56062: use of closed network connection
2023/09/06 14:31:04 read tcp 127.0.0.1:25345->127.0.0.1:56069: use of closed network connection
2023/09/06 14:31:04 read tcp 127.0.0.1:25345->127.0.0.1:56070: use of closed network connection
2023/09/06 14:31:04 read tcp 127.0.0.1:25345->127.0.0.1:56068: use of closed network connection
2023/09/06 14:31:04 read tcp 127.0.0.1:25345->127.0.0.1:56061: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56065: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56064: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56072: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56063: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56066: use of closed network connection
2023/09/06 14:31:39 read tcp 127.0.0.1:25345->127.0.0.1:56067: use of closed network connection
2023/09/06 14:32:31 read tcp 127.0.0.1:25345->127.0.0.1:56087: use of closed network connection
2023/09/06 14:32:31 read tcp 127.0.0.1:25345->127.0.0.1:56086: use of closed network connection
2023/09/06 14:33:15 read tcp 127.0.0.1:25345->127.0.0.1:56090: use of closed network connection
2023/09/06 14:34:02 read tcp 127.0.0.1:25345->127.0.0.1:56085: use of closed network connection
2023/09/06 14:37:14 read tcp 127.0.0.1:25345->127.0.0.1:56042: use of closed network connection

[OpenSourcerer 1435]

I think the config is missing KeepAlive. Did you import an AirVPN-generated config, or did you fill out some GUI with the settings?

[osvinenko 0]

I used the generated config. It has both KeepAlive and MTU. 

[OpenSourcerer 1435]

Oh, wait… right, Wireguard. I don't understand the TCP connections, then; Wireguard is UDP-only. Basen on that, I think these errors have nothing to do with the connection to AirVPN, it's something happening locally. Can you tell what third-party client you're using?

[osvinenko 0]

This one: https://github.com/pufferffish/wireproxy

[OpenSourcerer 1435]

I see. That's where the TCP spam is coming from. Yes, it's definitely a local problem. Moving to off-topic.

This issue looks similar. I'd say, please file your issue with upstream.