Here is my _very_ basic configuration of a Cisco router running IOS. Just remember to change all {VARIABLE} to the correct value including the {} part.
This will result in an all basic configured router, running SSH and with a user you can use to log in through SSH.
Router> enable Router# configure terminal Router(config)# hostname {ROUTER_NAME} Router(config)# enable secret 0 {ENABLE_PASSWORD} Router(config)# interface fastEthernet 0/0 Router(config-if)# ip address {IP_ADDRESS} {SUBNET_MASK} Router(config-if)# full-duplex Router(config-if)# speed 100 Router(config-if)# no shutdown Router(config-if)# exit Router(config)# username {USERNAME} privilege {PRIVILEGE_LEVEL} secret 0 {USER_PASSWORD} Router(config)# ip domain name {DOMAIN_NAME} Router(config)# crypto key generate rsa How many bits in the modulus [512]: 2048 Router(config)# line vty 0 4 Router(config-line)# login local Router(config-line)# transport input ssh Router(config-line)# exit Router(config)# ip routing Router(config)# exit Router# show running-config Router# copy running-config startup-config Destination filename [startup-config]? [PRESS_ENTER] Router# exit
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