User guide

Changing Your Network Settings

52 WatchGuard Firebox X Edge

To configure the Firebox as a DHCP relay agent:

1 If you have not already done so, use your browser to open the

Firebox X Edge configuration pages. Select Network => Trusted.

The Trusted Network Configuration page appears.

2 Select the Enable DHCP Relay checkbox.

3 Type the IP address of the DHCP relay server in the applicable

field.

4 Click Submit.

5 Reboot the Firebox X Edge.

With DHCP relay enabled, the Firebox will send all DHCP requests to the

specified, remote DHCP server and relay the resulting IP addresses to the

computers connected to the trusted network. If the Firebox is unable to

contact the specified, remote DHCP server in 30 seconds, it will revert to

using its own DHCP server to respond to computers on the trusted

network.

Assigning static IP addresses

Whether or not you choose to use the Firebox X Edge DHCP server,

you can assign static IP addresses to computers on your trusted net-

work. If you disable the DHCP server, you will have to manually con-

figure the IP address and subnet mask of all computers on the

trusted network. You can also choose to selectively configure indi-

vidual computers with a static IP address. This is necessary, for

example, when a client-server application requires a static IP address

for the server.

To disable the Firebox X Edge DHCP server completely, clear the

Enable DHCP Server on the Trusted Network checkbox on the

Trusted Network Configuration page.

OTE

All changes to the Trusted Network Configuration page require

that you click Submit and then reboot the Firebox before they

take effect. But you can make all the changes you want to make

and then reboot just once when you are done.

Configuring additional computers on the trusted

network

The Firebox X Edge accepts connections from up to seven comput-

ers. You can join a larger number of computers into a network using

one or more 10/100 BaseTx Ethernet hubs or switches with RJ-45

connectors. The Firebox X Edge system coexists with other systems