zynosgs model not working with switch GS1900-8HP

[s55ma]

Looking at ssh debug file from oxidized, config is actually pulled from the switch, but the last command exit isn't closing the ssh connection so it fails due timeout.

I tried to connect manually to the switch via ssh and enter "exit" command. It doesn't kill the ssh session, I get prompt over and over again, I can write 100x exit, it won't quit.

[MatGit5]

Why are already fetched configuration files not processed, despite the session being un-terminated? I have a couple of GS1900-8HP, revisions A1 and B1, patched to latest firmware - cannot exit ssh session nicely on any of them. We need to ask Zyxel how to terminate SSH session to such devices...

[s55ma]

I contacted the support right now via email. We'll see if they are going to respond.

EDIT: their support is useless, I can't reach them. Mail that was send via web form said: This email address is no longer monitored as we have moved our support experience in order to provide you with more personalized and seamless service.

Please visit https://support.zyxel.eu/ to explore our Self-Help articles.

So I went and I created an account, and tried to file a support ticket but the form couldn't continue, because there is a field where you need to enter Product model. After entering it and submitting it, I got redirected to the same form and the error was saying: Product Model: cannot be blank, even though I entered it. So, their support page is not working. Additionaly there is web chat available as support but turns out, it's AI powered and is useless, you can't reach a real human person. I will trash my zyxel switch and buy a new one from reputable vendor.

[MatGit5]

I too submitted the message via the online form, we'll see what happens, if anything...

[MatGit5]

...and I posted a question on Zyxel forum: https://community.zyxel.com/en/discussion/24232/how-to-exit-from-ssh-session-on-gs1900-8hp

[MatGit5]

Here is what I got from Zyxel: After investigation, we found the exit command was malfunctioning on this firmware version, that it should exit the SSH session. We will fix this in the future firmware release. You may follow this category to receive the new firmware release notification.

[MatGit5]

I also got a link to new firmware, not yet published at this time. After installing it to GS1900-8HP revisions A1 and B1 I can confirm that 'exit' command actually terminates the SSH session.

As expected, oxidized now works with this model.

[ytti]

I do think we should be able to terminate the SSH session after we run pre_logout, regardless if pre_logout causes disconnect or not.

If someone can give me access to affected node, I can ensure the model terminates SSH after pre_logout, even if it has to tear down the SSH session.

I'd come from 91.198.120.1. You can send credentials to [email protected].

[github-actions[bot]]

This issue is stale because it has been open 90 days with no activity.

[mhalden]

Zyxel have released v2.90 of the firmware for this series of switches with a functioning exit command, which has fixed this issue for us.

[github-actions[bot]]

This issue is stale because it has been open 90 days with no activity.