User guide

User Guide 83
Network Settings
Make the Firebox a DHCP relay agent for the optional interface
To configure the Firebox X Edge as a DHCP Relay Agent for the optional interface:
1. Use your browser to connect to the System Status page. From the navigation bar, select Network >
Optional.
The Optional Network Configuration page appears.
2. Select the Enable DHCP Relay on Optional Network check box.
3. Type the IP address of the DHCP server in the adjacent text box.
4. Click Submit. You must restart the Firebox X Edge for the new configuration to activate.
Use static IP addresses for optional computers
You can use static IP addresses for some or all of the computers on your optional network. If you disable the
DHCP server and you do not have a DHCP server on your optional network, you must manually configure the
IP address and subnet mask of each computer. You also can configure specified devices with a static IP
address. For example, this is necessary for a web server or network printer. Static IP addresses must be on the
same network as the Firebox X Edge optional interface. Computers with static IP addresses on the optional
network must use the optional interface IP address of the Edge as the default gateway or router. If a computer
does not use the Edge for 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 Optional Network check
box on the Optional Network Configuration page and click Submit.
Add computers to the optional network
You can directly connect only one computer to the Firebox X Edge e-Series optional interface because there
is only one optional Ethernet port. To connect more than one computer to the optional interface, use a 10/100
BaseT Ethernet hub or switch with RJ-45 connectors. It is not necessary for computers on the optional network
to use the same operating system.
To add more than one computer to the optional network:
1. Make sure that each computer has a functional Ethernet card.
2. Set each computer to use DHCP. For more information, see Set your computer to connect to the Edge
.
3. Connect each computer to the network. For more information, see Connect the Edge to more than four
devices.
4. Restart each computer.
Allow wireless connections to the optional interface
The Firebox X Edge e-Series Wireless can be configured as a wireless access point with three different security
zones. You can enable wireless devices to connect to the Edge Wireless as part of the trusted network or part
of the optional network. You can also enable a wireless guest services network for Edge users. When you allow
wireless connections through the Edge optional interface, those wireless devices have full access to all
computers on the optional network, and full Internet access according to the rules you have configured for
outgoing access on your Edge.
To configure the Edge to allow wireless connections through the optional interface, see Allow wireless
connections to the optional interface.
If the Firebox X Edge cannot connect to the DHCP server in 30 seconds, it uses its DHCP server to give
IP addresses to computers on the optional network. You must enable the DHCP server on the
optional network for the DHCP relay function to operate.