Need Advice on Running out of IP Addresses

Hey everyone,

I inherited a K12 network of about 850 users. We are moving toward a 1-1 environment where every student gets a device. The problem I'm having is that we are about to run out of ip addresses. We use a 255.255.252.0 subnet. When looking around for potential fixes I came across resubnetting and going to 255.255.248.0. But, I've heard that having a broadcast domain above 500 devices is a bad idea. So then I thought about VLAN between buildings. But then I'm worried about all users not having access to our file server.

I'm pretty green so any advice would be very helpful.