Some common operational commands for Cisco routers

1. Restore Factory

   In privileged mode

   #erase Startup-confiig to clear the boot configuration

#reload to restart the

So it's done.

2. Modify the privileged password

If we forget the password we set, we can modify it using this method.

On the boot router is press CTRL + C to enter ROM detection mode and then output

Rom1>confreg 0x2142 to ignore configuration files in NVRAM

Rom2>reset to restart

After reboot in

Continue with configuration dialong[yes/no]: Select No

Enter Router user mode

Router>enable Entering privileged mode

Router#copy startup-confiig running-config Copy the configuration file in NVRAM to memory

Then go to global mode and reset the password

Router (config) #enable password Cisco

Save the new configuration in privileged mode

Router#write Memory

Then reboot the system.

Router#reload

Enter ROM mode

Rom1>confreg 0x2102 reload config file from nvram

Rom2>reset Restart the System password modification is complete.

3. Copy the router's configuration file to local via the TFTP server

First set the IP address of the server to the text 192.168.1.1

Then enter the router configuration

Router>enable

Router#configure Terminal

Router (config) #interfiguer f0/0

Router (config-if) #ip address 192.168.1.2 255.255.255.0

Router (config-if) #no shutdown

Then back into privileged mode

Router#write Memory for storage

Then test if you can ping the IP of the server

Router#ping 192.168.1.1

Then make a copy.

Router#copy Running-config TFTP

Address or name of the remote host[]?192.168.1.1 enter the IP of the server after the question mark

Then leave the default hit enter to finish.

4. Router Iios mirroring upgrade

Router#copy Tftp:flash:

Address or name of remote host []? After the question mark, enter the version you want to upgrade and double-click

And then restart the

Enter Privileged mode

#show version to see if the update was successful

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Some common operational commands for Cisco routers