Configure SSH On Router and Switch

Router>enable
Router#configure terminal
Router(config)#hostname jodhpur
Enter configuration commands, one per line.  End with CNTL/Z.
jodhpur(config)#interface FastEthernet0/0
jodhpur(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

jodhpur(config-if)#ip address 192.168.1.1 255.255.255.0

jodhpur(config)#ip domain-name cdac.com
jodhpur(config)#username anil password 123

Router(config)#crypto key generate rsa

jodhpur(config)#crypto key generate rsa
The name for the keys will be: jodhpur.cdac.com
Choose the size of the key modulus in the range of 360 to 2048 for your
  General Purpose Keys. Choosing a key modulus greater than 512 may take
  a few minutes.

How many bits in the modulus [512]: 1024
% Generating 1024 bit RSA keys, keys will be non-exportable...[OK]

jodhpur(config)#
*Mar 1 0:55:0.75:  %SSH-5-ENABLED: SSH 1.99 has been enabled

jodhpur(config)#line vty 0 4
jodhpur(config-line)#transport input ssh
jodhpur(config-line)#password anil
jodhpur(config-line)#login
jodhpur(config-line)#