C9300 17.12.X SSH aborted error status 0

[TrueKiwi]

hello, my entire network is comprised of c9300s using version 17.09.04a with a couple one offs that use a slightly older version of a different model (such as a 12p or a chassis). We recently installed some switches that had 17.12.X installed (some on .4, some on. 3), and they all prevent you from SSHing from inside the switch. You can get in with no issue, but anytime you try to do it from within the switch, you get a "session aborted error status 0"

If anyone knows what issue I'm having, I'd love to know. Thank you 

[MHM Cisco World]

 transport output ssh <<- do you add this ??

MHM

[TrueKiwi]

transport output and input on my vty lines are set to ssh. The configs are identical between all switches on my network. The cause of the issue is them being on version 17.12.

[MHM Cisco World]

PC - SW1 - SW2 

Ssh to sw1 and from there ping to SW2 using source'

Check if there is reachability or not

MHM

[Flavio Miranda]

@TrueKiwi 

 Make sure you have "ip ssh source-interface" on the switch. If you do have the command, make sure the correct interface is being used. If you dont have the command, make sure you add it with the proper interface.

If you are trying to access by hostname, make sure you can resolve the name with nslookup.

Also, check SSH config. Check key size in both switches and SSH version.

[TrueKiwi]

"ip ssh source-interface vlanX" is on the switch and the interface vlan/layer 2 vlan is configured. This is the same configuration that is placed on every other switch I have on my network. The only constant for this issue is 17.12.03/04 instead of 17.09.04a. 

Once again, you we SSH from a 17.09 to a 17.12, but you cant get from the 17.12 to anywhere else. I could send a stripped version of my show run if that would help? 

[MHM Cisco World]

Check command I share above 

MHM

[Flavio Miranda]

Unfortunally I dont believe this will show up on the show run, but, if you can share, doesn´t hurt take a look. I believe this can be related to some new security feature on 17.12. I am looking on the documentation.