SSH Client Reset

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tyrhoads17
Posts: 8
Joined: 2017/09/29 19:16:24

SSH Client Reset

Postby tyrhoads17 » 2018/01/11 17:06:55

As I'm working from my client machine and SSH into a CentOS 7 machine I frequently drop connection. I'm using Putty to SSH. I am activity working through SSH so inactivity shouldn't be an option for losing connecting. The client Ip is: 10.175.15.245. CentOS 7 ip is: 10.248.9.3 I looked on the switch and here is the results:

Generate Time Source address Destination address Destination Port Bytes Sent Bytes Received Packets session_end_reason
1/10/2018 17:22 10.175.15.245 10.248.9.3 22 9906 8908 131 tcp-fin
1/10/2018 16:50 10.175.15.245 10.248.9.3 22 16180326 143857862 256585 tcp-rst-from-client
1/10/2018 16:17 10.175.15.245 10.248.9.3 22 2431360 3965330 9064 tcp-rst-from-client
1/10/2018 16:17 10.175.15.245 10.248.9.3 22 16874270 669155454 693822 tcp-rst-from-client
1/10/2018 13:14 10.175.15.245 10.248.9.3 22 38520968 202959918 878105 tcp-rst-from-client
1/10/2018 10:56 10.175.15.245 10.248.9.3 22 12256 23734 119 tcp-fin
1/10/2018 9:12 10.175.15.245 10.248.9.3 22 12744 12972 173 tcp-rst-from-client
1/10/2018 9:12 10.175.15.245 10.248.9.3 22 75372 126990 1368 tcp-rst-from-client

The client does a TCP reset. Putty will fail and show " PuTTY Fatal Error Network Connection: Software caused connection abort." View attached picture for image. I have Keepalives turned on in PuTTY. Seconds between keepavlives in 55. I also re-installed puTTY 0.70. My question is does anyone have any idea why my client machine (windows 7) does a TCP reset and drop connection?

-Tyler
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TrevorH
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Re: SSH Client Reset

Postby TrevorH » 2018/01/11 17:17:24

Are you sure you don't have something else on one of those ip addresses? The symptoms you describe are often caused by a duplicate ip address on the network.
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tyrhoads17
Posts: 8
Joined: 2017/09/29 19:16:24

Re: SSH Client Reset

Postby tyrhoads17 » 2018/01/12 12:40:58

I checked that and there are no duplicate IP on the network.