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SonicOS Enhanced 4.0 Administrator Guide
Configuring DHCP Server for Dynamic Ranges
To configure DHCP server for dynamic IP address ranges, follow these instructions:
Step 1 In the Network > DHCP Server page, at the bottom of the DHCP Server Lease Scopes table,
click Add Dynamic. The Dynamic Ranges Configuration window is displayed.
General Settings
Step 2 In the General page, make sure the Enable this DHCP Range is checked, if you want to
enable this range.
Step 3 Select the interface from the Interface menu. The IP addresses are in the same private subnet
as the selected interface.
Note To select an interface from the Interface menu, it must first be fully configured and it must
be of the Zone type, LAN, WLAN, or DMZ.
Step 4 Use the default IP address range entries for the interface in the Range Start and Range End
fields or type in your own IP address range.
Step 5 Type the number of minutes an IP address is used before it is issued another IP address in the
Lease Time (minutes) field. 1440 minutes (24 hours) is the default value.
Step 6 Select the gateway from the Gateway Preferences menu. The interface IP address is the
default value, but you can select Other and type a different IP address for the gateway.
Step 7 If you select the interface IP address from the Gateway Preferences menu, the Default
Gateway and Subnet Mask fields are unavailable. If you select Other, the fields are available
for you to type the Default Gateway and Subnet Mask information into the fields.
Step 8 Select Allow BOOTP Clients to use Range if you have BOOTP Clients on your network.
BOOTP stands for bootstrap protocol, which is a TCP/IP protocol and service that allows
diskless workstations to obtain their IP address, other TCP/IP configuration information, and
their boot image file from a BOOTP server.