IP Subnetting Issue
It' s been 5 years since I' ve studied/brushed up on my subnetting skills so i' m a bit rusty. I have run into an issue in one of my offices. The main interface is currenlty running on 192.168.5.1/255.255.255.0 for about the last 4 years. We have since doubled our staff in the office and between the servers, phones and employees, we' ve quickly run out of IPs.
I' m trying to expand the network now so I can at least double the IP Space available.
Using classless ip routing, can I expand the network to allow for 510 maximum addresses by adjusting the interface to 192.168.4.1/255.255.254.0? Would I run into any issues? We' re currently using a FortiGate200A Firewall if that matters.
If this would work, I could simply adjust the default route to 4.1 and update the DHCP server to include the new addresses.
I thank anyone ahead of time for responding.