how to change "ip default-gateway" via ssh without losing connection

[kwihangana]

I am planning to change management IP for an svi  and  "ip default-gateway" on cisco C9200L from one subnet to the other but am afraid I might lose connection.

currently mgmt svi and ip default-gateway are on 10.117.20.x and wanted to have them changed to 10.120.20.x

any suggestions to make this smooth is much appreciated.

Thank you as I look forward to reading f

[MHM Cisco World]

good suggestion 

[paul driver]

Hello

You a have few options:

1. console on the switch
2. remote access the switch from the L3 core sourcing the connection from its own SVI
3. provide the switch with a default route  ( If only ip routing is enabled)
4. make the changes to a txt file, install that file (tftp) to the flash of the switch and then copy that file from the flash to the running-config of the switch, save the changes
5. Access the switch from a neighbor switch via its l2 mac address using clustering ( very doubtful this one as its an OLD hack that won’t be supported in new switches and software)