Protocol Error - Channel Failure on ExtremeXOS based devices. about sshj

[shikhar]

Looks like this bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=495917

Try with

ssh.getConnection().setWindowSize(4 * 1024);

before exec'ing, or maybe upgrade the device software.

[eliasjsalves]

Hi Shikhar. Thanks for reply.

Unfortunately it did not work. I changed the code to:

ssh.connect("192.168.10.5");
ssh.getConnection().setWindowSize(4096); //also tested with larger and smaller sizes
ssh.authPassword("user", "pass");

The weird fact is that the error varies according to the equipment version:

BlackDiamond8810 - SO: ExtremeXOS version 12.1.3.14 (SSH-2.0-4.1.2) don't works
Summit48si - SO: Version 7.7.4 (SSH-2.0-2.0.12) don't works
SummitX480 - SO: ExtremeXOS version 12.5.4.5 (SSH-2.0-4.1.2) works

The BD8810 causes the error described in the previous message.
The Summuit48i causes an exception: [SERVICE_NOT_AVAILABLE] Disconnected; server said: sshd: exec not supported.
The SummitX480 throws "SSH_MSG_IGNORE" but works.

I guess it's may be caused by the "old" version of the OS.
It is possible, after the user auth, send a command on "brute force" mode, ignoring error messages or something like that?

I tried MindTerm SSH lib and for some reason it works, but I really prefer to use yours.

Thanks again.
Elias