Telnet session time out when idle time 1 minute

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Telnet session time out when idle time 1 minute

L0 Member

Hello Everyone !


                I am Aung Naing, Nice to meet you all !!


                In our network we use POS device connect to POS server with telnet program. But when we start the telnet program from POS client device, the time is have to wait about 1minute and if nothing movment in POS client pc about 1minute the telnet connection is disconnect. Before I install firewall everything smooth. I use PA-200 firewall and may I have any solution to increase the session times out.


Cyber Elite
Cyber Elite

Hi Aung Naing!


Nice to meet you too!


have you colected a packetcapture to verify the session flow is happening normally?

there may be a FIN/RST packet from one side which could trigger an early session breakdown on the firewall


the default time a telnet session should remain open is 3600 seconds, unless a FIN/RST is received


can you also verify the application's timers? (maybe you have a shorter time set)



Tom Piens
PANgurus - SASE and Strata specialist; (co)managed services, VAR and consultancy

Thanks for your care sir, but that POS client pc use Winvt telnet program to connect server. I will try it out packet capturing. Can I do from "session timeouts" under "device" configuration.

"Session Timeout" under device tab only for the device itself, so for the session initiated to the device or from, not the passing through traffic sessions

L4 Transporter



What is the session end reason in the traffic logs?



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