So I have an old sonicwall I am replacing with a fortigate. The PC's have 7 day DHCP leases... The Fortigate will be set up to be the same IP as the sonicwall was and it will have the same DHCP range... But of course when I make the swap the fortigates lease list will be empty... Im curious - as PC's check in with the firewall, will they keep their addresses? Or will they wind up getting reset the lowest available address at the time?
Any other concerns to think about with swapping the firewalls?