OK, so been helping out a local charity with their network and stuff. they want to separate their backoffice network from their guest wi-fi, as they rent out their building for conferences. I've been looking at the Netgear SRX5308 WAN Firewall, which allows them to create multiple VLANs and route them both to the WAN connection (ISP) yet keep them isolated . . . all good . . . apart from security one of the reasons to do this is that they run out of IP addresses on their DHCP server (as they have lots of people in the office with PCs, smartphones, iPads, etc. The Wireless solution I have designed can create multiple SSIDs if you have VLANs, so the backoffice will get completely seperated from the usage of their hall, whiich can accomodate 400-500 people. All good, but then if they have a guest network, and we given that a class C of its own it will stil only have 250 or so IP addresses . . .
Here's the question . . . Can I create a /23 subnet (i.e. subnet mask of 255.255.254.0), so we get an IP address range of 192.168.10.1 through 192.168.11.254? And can DHCP provide that many IP addresses?
You don't have to be a megalomaniac to moderate this forum . . . but it helps!
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