I have a Cisco 2811 with fa 0/0 as my bearer, and a switch module for internal clients.
I have an issue with my fa 0/0 flapping, I want to move that ip configuration to fa 0/1
as this is a branch office I am reliant on the bearer port to give me coms so changing the IP addresses is difficult.
Has any one tried this with a TCL script?
Any other ideas would be appriciated.
You should not need TCL script for this. Have an outage window, copy the commands that are under interface fa0/0 into a notepad. Delete the config on fa0/0 and paste the config from notepad to fa0/1. Test to make sure the connection is up and traffic is passing.
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Remote access via f0/0 currently?
Haven't tried using a script, but you might update the startup config and schedule a reload.
I'm think about just modifing the start up script but I'm worried I wont have a roll back option.
If I can TCL, then I can schedule a reload change the ip addresses, and if I lose coms to the box it will reload itself and be back to normal.
Sorry for joining the party a bit late.
For future reference, configure replace is your friend: Create a new configuration, and save it on flash:. You probably want to copy over your existing config with TFTP, SCP or similar, make the required changes, and then transfer it back under a different filename (e.g. migration-yyyy-mm-dd.config).
Once the new config file is on the flash drive, schedule a reload, and then use "config replace flash:/migration-yyyy-mm-dd.config" to activate the changes in the new configuration. If you can't contact the router, it should still reload on schedule, with the old configuration in place. If everything goes to plan, simply use "copy run start" to save the new running config.
I think that you use the Event Manager to change, and rollback if necessary.
event manager applet CHANGE-LINK
event timer watchdog time 240
action 0.1 cli command "enable"
action 0.2 cli command "int f0/1"
action 1.0 cli command "" ip address XXX"
action 2.0 syslog priority informational msg "Change link successfully."
My suggestion that you create two schedules at different times, one to change for new interface and other to return. If change is OK, you will remove the scheduled rollback.
The time is to recycle at the period of you determine, caution that this.
Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future.