Network/Dynamic_Range_Configuration.htm

Configuring DHCP Server for Dynamic Ranges

To configure DHCP server for dynamic IP address ranges, follow these instructions:

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

In the General page, make sure the Enable this DHCP Range is checked, if you want to enable this range.

Select the interface from the Interface menu. The IP addresses are in the same private subnet as the selected interface.

Tip: 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.

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.

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.

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.

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.

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.

DNS/WINS

Click the DNS/WINS tab to continue configuring the DHCP Server feature.

If you have a domain name for the DNS server, type it in the Domain Name field.

Inherit DNS Settings Dynamically using SonicWALL's DNS Settings automatically populates the DNS and WINS settings with the settings in the Network > DNS page. This option is selected by default.

If you do not want to use the SonicWALL security appliance network settings, select Specify Manually, and type the IP address of your DNS Server in the DNS Server 1 field. You can specify two additional DNS servers.

If you have WINS running on your network, type the WINS server IP address(es) in the WINS Server 1 field. You can add an additional WINS server.

VoIP Settings

Click on the VoIP Settings tab. The VoIP Settings tab allows you to configure the SonicWALL DHCP server to send Cisco Call Manager information to VoIP clients on the network.

Enter the IP address or FQDN of your VoIP Call Manager in the Call Manager 1 field. You can add two additional VoIP Call Manager addresses.

Click OK to add the settings to the SonicWALL security appliance.

Click Apply for the settings to take effect on the SonicWALL security appliance.

Cross Reference: For more information on VoIP support features on the SonicWALL security appliance, see Chapter 28 Configuring VoIP Support.