Changing SSH default port on Cisco 7201 Router

[Frank27]

Normally I can change the ssh port using rotary method with 

ip ssh port (port number) rotary 1

but this release I am using 12.4(12.2r)T does not support the port command after ip ssh..

How I can change port then for preventing bots brute force attack on port 22?

[balaji.bandi]

I believe due to version of code it may not support the feature changing the port. instead you can restrict SSH to known IP address as remidiation :

BBRouter(config)#access-list 10 permit 192.168.100.0 0.0.255.255
BBRouter(config)#line vty 0 15
BBRouter(config-line)#access-class 10 in