duplication ip address

[mohameddjelouah]

hello  ,

we have a router in another state with 2mb using serial we upgraded to 4mb and we will use the g0/1 for the new link so i want to set the same ip address and mask in the serial to the g0/1 and save the travel and make someone from there to just plug the cable in g0/1 and removing the serial how can i do that !??? and thank you.

[balaji.bandi · Accepted solution]

If the far end no man available for you to config, you looking for this task to be done remotely. (it bit risky but can be done if you plan properly with small downtime - if something go wrong) 

here is the challenges Serial and Ethernet are different.  (your ISP / Other side need to be ready)

1. First i will set the timer to reload the device : Example : 30th April 2019 3:00am

#reload at 03:00 30 apr
Reload scheduled for 03:00:00 GMT XX Apr 30 2019 (in xx hours and xx minutes) by console
Reload reason: Reload Command
Proceed with reload? [confirm]

 2. Configure new Interface G0/1 IP address  (make sure the Interface in  downdown mode.)

interface gi 0/1

shutdown

ip address x.x.x.x x.x.x.x

3. you need to make EEM Script to run Certain time (before reload time mentioned above)

EEM Script will Shutdown the Serial interface

EEM Script will enable the Gi0/1 port.

Do not write the config.

4. keep the pings to remote side IP, as soon as remote IP able to ping, then connect and check all config ok and write the config on the device.

5. in any case the things go wrong, the reload schedule reload the device, so you have old config running will be back.

[Jaderson Pessoa]

as balaji said, all steps mentioned by him is great.