SSH

[sdc]

Hi team,

I am having SSH issues, using putty 0.79 and after generating crypto keys I can connect but after 10 to 15 seconds or so the session locks up or I get a connectivity loss, "software caused connection abort"

Sam.

[Chandini]

Hi Sdc

Thank you for reaching us. 

• Could you please help us with switch model and version running on the switch ?
• Are you able to access the switch using console or telnet ? 

Try to gain access to the switch using console or telnet and check the below outputs and see if the SSH is enabled or disabled

• show ip ssh config
• show ip ssh

When you saw ""software caused connection abort"" did the switch reload or freeze on its own ? If no then were you able to connect to the switch again using SSH ?

Thanks 

[sdc]

d

[sdc]

Hi,

Thank you for your reply, the switch is a ICX-7150-C12P, running SPR08095m firmware.

I can access the switch via console and telnet without issues, however SSH connections using Putty, iterm, ssh via a debian/mac os terminal will connect but after roughly 10seconds or so the session will freeze or lockup.  I can regain access if I restart a new session.

The switch does not freeze or reload.

SSH@ICX7150#sh ip ssh config
SSH server : Enabled
SSH port : tcp\22
Host Key : RSA 2048
Encryption : aes256-cbc, aes192-cbc, aes128-cbc, aes256-ctr, aes192-ctr, aes128-ctr, 3des-cbc
Permit empty password : No
Authentication methods : Password, Public-key, Interactive
Authentication retries : 3
Login timeout (seconds) : 120
Idle timeout (minutes) : 30
Strict management VRF : Disabled
SCP : Enabled
SSH IPv4 clients : All
SSH IPv6 clients : All
SSH IPv4 access-group :
SSH IPv6 access-group :
SSH Client Keys :
Client Rekey : 0 Minute, 0 KB
Server Rekey : 0 Minute, 0 KB

SSH@ICX7150#sh ip ssh
Connection Version Encryption Username HMAC Server Hostkey IP Address
Inbound:
1 SSH-2 aes256-ctr sam hmac-sha1 ssh-rsa 10.40.203.33
2 SSH-2 aes256-ctr sam hmac-sha1 ssh-rsa 10.40.203.33
3 SSH-2 aes256-ctr sam hmac-sha1 ssh-rsa 10.40.203.33
Outbound:

SSH-v2.0 enabled; hostkey: RSA(2048)

[sdc]

Any news on this, still having issues with ssh stability