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12-01-2013 03:03 PM - edited 03-07-2019 04:52 PM
I have switch 3548-XL with version 12.0(5.3)WC. When attempting to run crypto key genearte rsa, it doesn't work. Why?
IP200#conf t
Enter configuration commands, one per line. End with CNTL/Z.
IP200(config)#hostname IP200
IP200(config)#ip domain-name chicagotech.net
IP200(config)#crypto key generate rsa
^
% Invalid input detected at '^' marker.
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12-01-2013 03:16 PM
SSH is not supported on these switches as they are too old i'm afraid.
Jon
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12-01-2013 03:24 PM
The 3548 was end of sales in July 2002 (reference).
They do not support ssh (only telnet for vty access) and thus do not have the capability to generate an RSA key.
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12-01-2013 03:06 PM
Can you post sh ver?
In order to run SSH, you need an IOS image that contains "k9" in the name.
example:
c3560e-universalk9-mz.122-55.SE.bin
HTH
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03-15-2025 11:09 AM
Thanks A lot Dear,
you are right.
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12-01-2013 03:16 PM
SSH is not supported on these switches as they are too old i'm afraid.
Jon
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12-01-2013 03:24 PM
The 3548 was end of sales in July 2002 (reference).
They do not support ssh (only telnet for vty access) and thus do not have the capability to generate an RSA key.

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08-09-2019 12:37 PM
I just now faced the same issue and fixed it as following: update the image on boot then reload then try crypto command again.
