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DHCP>Setup>Add Dynamic Range

Configuring the SonicWALL DHCP Server for Dynamic Ranges

Dynamic Ranges are the ranges of IP addresses dynamically assigned by the DHCP server. The Dynamic Ranges should be in the same subnet as the SonicWALL LAN IP Address.

To configure the SonicWALL DHCP server for the LAN using Dynamic Ranges, complete the following instructions.

  1. Select the Enable DHCP Server.

  2. Click on Add Dynamic Range. The SonicWALL DHCP Setup window appears.

  1. Enter the maximum length of the DHCP lease in the Lease Time field. The Lease Time determines how often the DHCP Server renews IP leases. The default Lease Time is 60 minutes. The length of time can range from 1 to 9999 minutes.

  2. If configuring DHCP server for the LAN, enter the gateway address used by LAN computers to access the Internet in the Default Gateway field and the Subnet Mask in the Subnet Mask field. Enter the SonicWALL LAN IP Address if NAT is enabled.

  3. Enter the domain name registered for your network in the Domain Name field. An example of a domain name is "your-domain.com". If you do not have a domain name, leave this field blank.

  4. Select Set DNS Servers using the SonicWALL Network settings to use the DNS servers that you specified in the SonicWALL Network section.

If you want to use different DNS servers than the ones specified in the SonicWALL Network section, then select Specify manually. Enter your DNS Server addresses in the DNS Server 1, DNS Server 2, and DNS Server 3 fields. The DNS servers are used by computers on your LAN to resolve domain names to IP addresses. You can enter only one DNS Server address, but multiple DNS entries improve performance and reliability.

  1. Enter your WINS Server address(es) in the WINS Server 1 and WINS Server 2 fields. WINS Servers resolve Windows-based computer names to IP addresses. If you do not have a WINS server, leave these fields blank.

  2. Enter the beginning IP address of your LAN IP address range in the Range Start field. Enter the ending IP address in the Range End field.

  3. Select the Allow BootP clients to use range check box if you want BootP clients to receive IP leases.

  4. Click Update. When the SonicWALL has been updated, a message confirming the update is displayed at the bottom of the browser window. Continue this process until you have added all the desired dynamic ranges.

Alert! The DHCP Server does not assign an IP address from the dynamic range if the address is already being used by a computer on your LAN.

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