Using Static Ip Addresses For Trusted Computers; Adding Computers To The Trusted Network - Watchguard Firebox X20E User Manual

Configuring the Trusted Network
To configure the Firebox X Edge as a DHCP Relay Agent for the trusted interface:
Use your browser to connect to the System Status page. From the navigation bar, select
1
Network > Trusted.
The Trusted Network Configuration page appears.
Select the Enable DHCP Relay check box.
2
Type the IP address of the DHCP server in the related field.
3
Click Submit. You must restart the Firebox X Edge for new configuration to start.
4
If the Firebox X Edge cannot connect to the DHCP server in 30 seconds, it uses its own DHCP server to give IP
addresses to computers on the trusted network. You must enable the DHCP Server on the trusted network
for the DHCP relay function to operate.

Using static IP addresses for trusted computers

You can use static IP addresses for some or all of the computers on your trusted network. If you disable
the Firebox X Edge DHCP server and you do not have a DHCP server on your network, you must manu-
ally configure the IP address and subnet mask of each computer. For example, this is necessary when a
client-server software application must use a static IP address for the server. Static IP addresses must be
on the same network as the Edge trusted interface. Computers on the trusted network with static IP
addresses must use the Edge trusted interface IP address for the default gateway. I
not use the Edge as the default gateway, it usually cannot get to the external network or the Internet.
To disable the Firebox X Edge DHCP server, clear the Enable DHCP Server on the Trusted Network
check box on the Trusted Network Configuration page and click Submit.

Adding computers to the trusted network

You can connect as many as three computers to the trusted interface of the Firebox X Edge e-Series if
you connect each computer to one of the Edge's Ethernet ports 0 through 2. You can use 10/100 BaseT
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f a computer does
Firebox X Edge e-Series