wscat breaks when IP of server changes

[Michael65589]

Hi,
I use WSCAT to communicate with a server in a Windows batch file. It works well but when I send a command to change the servers IP address WSCAT breaks and also my batch file.

Example:
wscat --connect ws://192.168.2.120:1234 -w 1 -x {"type":"write","name":"network","value":{"ip":"192.168.2.150","netmask":"255.255.255.0","gateway":"192.168.0.1"}}

The server receives the message, set and activate the new IP address but WSCAT does not get the answer because it expects the answer on the IP address 192.168.2.120.

Is there a way to do not wait for an answer?

Thanks
Michael

[lpinca]

Make the server close the connection cleanly (call websocket.close()) before changing the IP.

[Michael65589]

I'm afraid not. I can't do any changes on the server side, sorry If it is a server side problem is there a solution anyway?

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-----Ursprüngliche Nachricht----- Von: Luigi ***@***.***> Gesendet: Mittwoch 1 März 2023 21:36 An: websockets/wscat ***@***.***> CC: Michael65589 ***@***.***>; Author ***@***.***> Betreff: Re: [websockets/wscat] wscat breaks when IP of server changes (Issue #146) Make the server close the connection cleanly (websocket.close()) before changing the IP. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[lpinca]

You can try to use the --wait 0 option so that websocket.close() is called right after sending the command but there is no guarantee that it will work. The problem is that the command is sent and after some time (2 seconds by default) websocket.close() is called. In that time frame the server changes the IP so the closing handshake fails.