WatchGuard Technologies FireboxTM System 4.6 - Manual (Page 50)

Entering WINS and DNS server addresses
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Entering WINS and DNS server addresses
Several advanced features of the Firebox, such as DHCP and Remote User VPN, rely
on shared Windows Internet Name Server (WINS) and Domain Name System (DNS)
server addresses. These servers must be accessible from the Firebox Trusted interface.
From Policy Manager:
1 Select Network => Configuration. Click the General tab.
2 Enter primary and secondary addresses for the WINS and DNS servers. Enter a
domain name for the DNS server.
Defining a Firebox as a DHCP server
Dynamic Host Configuration Protocol (DHCP) is an Internet protocol that simplifies
the task of administering a large network. A device defined as a DHCP server
automatically assigns IP addresses to network computers from a defined pool of
numbers. You can now define the Firebox as a DHCP server for your network behind
the firewall.
One parameter that you define for a DHCP server is lease times. This is the amount of
time a DHCP client can use an IP address that it received from the DHCP server.
When the time is close to expiring, the client will contact the DHCP server to renew
the lease.
From Policy Manager:
1 Select Network => Configuration. Click the DHCP Server tab.
2 Enable the Enable DHCP Server checkbox.
3 Enter the default lease time for the server.
The default lease time is provided to clients who don’t specifically request times.
4 Enter the maximum lease time.
The maximum lease time is the longest time the server will provide for a client. If a client
requests a longer time, the request is denied and the maximum lease time is provided.
Adding a new subnet
To increase the number of available (private) IP addresses available to DHCP clients,
add a subnet. To add a new subnet, you specify a range of IP addresses to be assigned
to clients on the network. For example, you could define the address range from
10.1.1.100 to 10.1.1.19. This gives clients a pool of 10 addresses. From Policy Manager:
1 Select Network => Configuration. Click the DHCP Server tab.
2 Click Add.
3 Enter a name for the subnet.
4 Define the address pool by entering values for Starting IP address and Ending IP
address.
5 Click OK.