SSH command support or not

[Robo123]

Hi , Please help me to know whether the IOS " c2801-adventerprisek9-mz.124-15.T17.bin" will support the below commands.

1) ip ssh server algorithm encryption aes256-ctr

2.)ip ssh server algorithm mac hmac-sha1

[Marvin Rhoads]

No it will not. Those commands require a minimum IOS version of 15.5(2)S or 15.5(2)T.

That requirement is documented in the following references:

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_usr_ssh/configuration/15-s/sec-usr-ssh-15-s-book/sec-secure-shell-algorithm-ccc.html#reference_766705DB5B8D46839F3CA078ECB9584D

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/d1/sec-d1-cr-book/sec-cr-i3.html#wp1878398293

[Robo123]

Thanks Marvin, But im using 2801 router and the maximum IOS version listed in cisco site for this model is 15.1.X ; kindly suggest on this...

[Marvin Rhoads · Accepted solution]

Sorry but the 2801 is end of sales for almost 2 years now.

One disavantage of using obsolete equipment is that you will not be able to take advantage of newer features. You would have to upgrade to a current router to use the newer software with the feature you are asking about.

[Robo123]

Thank you for your immediate support !!!!