I have an issue this morning where I want to be able to assign multiple ip addresses to the inside interface to facilitate an ip range migration for an office.
Namely from a 192.168.1.x range to the new range, with the minimum of interruption for those working in the office.
(New DHCP leases will use the new range, whilst those still on the 192.168.1.x range can continue to work until their lease is renewed).
However I can not for the life of me figure out how to achieve this, trying to create multiple interfaces for the job leads to complaints about the license only allowing 2 active interfaces.
thanks in advance.