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Forum Discussion
Firmware 7.3.1.7
Has anyone running a GSM or FSM series L3 managed switch tried firmware 7.3.1.7? I'm really curious about stability of this new release. 7.1.1.7 and 7.2.1.6 were not very stable (IP routing, VLAN, ...
Just a note which might be useful for FSM73xx switch users who are stuck with the 7.3.1.7 firmware (because there was no 8.x version released for these models, and now they are EOL).
Any attempt to connect to the switch using recent OpenSSH versions will crash and reboot the switch (this happens before the authentication, when the SSH2_MSG_KEXDH_INIT message is sent). The workaround which will allow SSH management connection is to put this in ~/.ssh/config:
The default HostKeyAlgorithms value is now a long string which probably overflows some buffer in the “FreSSH.0.8” server implementation used on this switch.
Any attempt to connect to the switch using recent OpenSSH versions will crash and reboot the switch (this happens before the authentication, when the SSH2_MSG_KEXDH_INIT message is sent). The workaround which will allow SSH management connection is to put this in ~/.ssh/config:
Host
HostKeyAlgorithms ssh-rsa,ssh-dss
The default HostKeyAlgorithms value is now a long string which probably overflows some buffer in the “FreSSH.0.8” server implementation used on this switch.
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