DHCP Server Scope

The DHCP server assigns leased IP addresses to users within specified ranges, known as Scopes. The default ranges for DHCP scopes are often excessive for the needs of most SonicPoint deployments, for instance, a scope of 200 addresses for an interface that uses only 30. Because of this, DHCP ranges must be set carefully in order to ensure the available lease scope is not exhausted.

The DHCP scope should be resized as each interface/subinterface is defined to ensure that adequate DHCP space remains for all subsequently defined interfaces. Failure to do so may cause the auto-creation of subsequent DHCP scopes to fail, requiring manual creation after performing the requisite scope resizing. DHCP Server Scope is set from the Network > DHCP Server page; see Network > DHCP Server.

Maximum DHCP Leases Allowed shows maximum allowed DHCP leases for SonicWall security appliances.