My question is very simple (or so I hope). I need to be able to configure my SonicWall to hand out more than 255 DHCP leases. This is for a public wireless network, so I'm not concerned about them communicating between subnets, and I actually prefer they weren't able to. There will be no administrative/sensitive traffic on the LAN, only from the WAN connection for management. How do I properly configure a SonicWall TZ105 running the 5.9.1 firmware to hand out more than 255 DHCP leases seamlessly on interface 0, 2, 3 and 4 (because there's one WAP connected to each interface)? I would expect at any given time there may be 500 users on this network, so ideally over 1000 available leases would be perfect.
I'm looking for exact instructions, not general, "set your Subnet Mask to 255.255.0.0 and configure 192.168.1.100 to 192.168.10.100". I did try that and it kept throwing errors about the gateway not being in the range and etc... If a SonicWall TZ105 can't do that, it's okay, please recommend a router you think would work for this.
If the seamless functionality isn't available due to the different interfaces, that's okay too. I'll get a PoE switch and plug it into one port.
I've found previous little information on doing this from Google searches, hence my post here!