IOS XE on CSR Recommended Code Allways On SSH not working

[szglvs]

Hello

When attempting to ssh to sandbox-iosxe-recomm-1.cisco.com from ubuntu 22.04, I am receiving the following error:
Unable to negotiate with 131.226.217.149 port 22: no matching key exchange method found.

[bigevilbeard]

@szglvs try

 ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 admin@sandbox-iosxe-recomm-1.cisco.com

HTH

[szglvs]

Thank you for your support.
Unfortunately that did not work, I am getting the same error message;
Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1

[bigevilbeard]

No problem. Open a terminal windows and execute the following;

sudo nano /etc/ssh/ssh_config
ENTER YOUR PASSWORD

Then copy/paste the following on the end after Host *

KexAlgorithms +diffie-hellman-group1-sha1,diffie-hellman-group14-sha1

Should look like this

Host *
    SendEnv LANG LC_*
HostkeyAlgorithms ssh-dss,ssh-rsa
KexAlgorithms +diffie-hellman-group1-sha1,diffie-hellman-group14-sha1

[szglvs]

Hello Thank you for your support.

It still is not working

[bigevilbeard]

Is there a new error? There was a post by admin here --> HERE which said work was taking place

[szglvs]

no same error

[bigevilbeard]

Could be due to work being done, i dont get an error - but cannot access the device all the same.

[Alexander Stevenson]

Hi @szglvs,

When that one is down or locked, as it is now, I use the alternate, and vice versa:

IOS XE on CSR Latest Code AlwaysOn1

https://devnetsandbox.cisco.com/RM/Diagram/Index/7b4d4209-a17c-4bc3-9b38-f15184e53a94?diagramType=Topology

• CSR1000v Host: sandbox-iosxe-latest-1.cisco.com
• SSH Port: 22
• NETCONF Port: 830
• gRPC Telemetry Port: 57500
• RESTCONF Port: 443 (HTTPS)
• Username: admin
• Password: C1sco12345