006 - IOS installation on Cisco Router

Requirenment: Router connected to ethernet network
Tftp server ( solarwinds ) with ios image on root directory

For 1700 series Router
rommon> set
IP_ADDRESS=192.168.1.2
IP_SUBNET_MASK=255.255.0.0
TFTP_SERVER=192.168.1.10
DEFAULT_GATEWAY=192.168.1.1
TFTP_FILE={the name of the IOS that is saved on the PC}

rommon > tftpdnld

rommon>reset



For 2500 series Router

Steps:Step 2:Change the configuration register to boot the ROM(BOOT) image. Configuration register to be used is 0×2141
Step 3: Initialize the router by issuing the i command
Step 4 Assign an IP address to the Ethernet interface and configure a default gateway (if required).


Commands:
>o/r 0×2141>i


Press RETURN to get started!

Router(boot)>enable
Router(boot)#config t
Router(boot)(config)#interface e0
Router(boot)(config-if)#ip add 10.1.1.20 255.255.255.0
Router(boot)(config-if)#no shut
Router(boot)(config-if)#exit
NOTE: The line below is optional if your TFTP server is not on the same network
Router(boot)(config)#ip default-gateway 10.1.1.254
Router(boot)(config)#end

Router(boot)#copy tftp flash