I have a Sonicwall NSA 2400 deployed that has a DHCP range of x.x.x.30 through x.x.x.49. WIthin that range on the network we have a fax server that utilizes x.x.x.47 as a static address. On the Sonicwall, it's showing that address as an active dynamic DHCP lease, even though the address is still directing to the fax server (nothing else is overcoming that IP).
Why is the Sonicwall behaving like this? That address shouldn't even be in the DHCP lease list.