LAN
Unlike Internet, DMZ or COM1 ports, the LAN network port has only one configurable function, to connect to your local area network. Network settings for the LAN network port may be assigned statically, or dynamically by a DHCP server. Select Edit current settings to continue.
To assign network settings statically, enter an IP Address and Netmask for the LAN network port. If you are using the CyberGuard SG appliance in its default, network address translation mode, (see Network address translation in the Advanced section of this chapter), this will typically be part of a private IP range, such as 192.168.0.1 / 255.255.255.0. Ensure DHCP assigned is unchecked.
If you wish to have your CyberGuard SG appliance obtain its LAN network settings from an active DHCP server on your local network, check DHCP assigned then Apply. Note that anything in the IP Address and Netmask fields will be ignored.
You may also enter one or more DNS servers. Multiple servers may be entered separated by commas.
Figure
Bridging
Checking the Enable bridging checkbox allows you to create transparent Ethernet bridges over IPSec tunnels. This is useful because:
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