Watchguard Firebox X20E, User Manual

Page: 70 / 310

Configuring the External Network
58 Firebox X Edge e-Series
Changing link speed
Select Automatic from the Link Speed drop-down list to have the Edge select the best network speed,
or select a static link speed that you know is compatible with your equipment.
We recommend that you set the link speed to
Automatic unless you know this setting is incompatible
with your equipment.
Changing the MAC address of the external interface
Some ISPs use a MAC address to identify the computers on their network. Each MAC address gets one
static IP address. If your ISP uses this method to identify your computer, then you must change the
MAC address of the Firebox X Edge external interface. Use the MAC address of the cable modem, DSL
modem, or router that connected directly to the ISP in your original configuration.
The MAC address must have these properties:
•
The MAC address must use 12 hexadecimal characters. Hexadecimal characters have a value
between 0 and 9 or between “a” and “f.”
•
The MAC address must operate with:
- One or more addresses on the external network
- The MAC address of the trusted network for the Firebox X Edge
- The MAC address of the optional network for the Firebox X Edge
•
You cannot set the MAC address to 000000000000 or ffffffffffff.
To change the MAC address of the external interface:
1 To connect to the System Status page, type https:// in the browser address bar, and the IP
address of the Firebox X Edge trusted interface.
The default URL is: https://192.168.111.1
2
From the navigation bar, click Network > External .
The External Network Configuration page appears.
3
On the Advanced tab, select the Enable override MAC address check box.
4
In the Override MAC address text box, type the new MAC address for the Firebox X Edge
external network.
You must enter the MAC address as a hexadecimal number.
Do not use extra characters, such as spaces or hyphens.
5
Click Submit .
You must restart the Firebox to see the changes.