3Com Switch 8800 Family Firewall Module Configuration and Command Reference Guide

338 CHAPTER 19: TRANSPARENT FIREWALL CONFIGURATION COMMANDS
[SecBlade_FW-GigabitEthernet0/0.1] firewall ethernet-frame-filter 40
09 inbound
firewall mode Syntax
firewall mode { route | transparent }
undo firewall mode
View
System view
Parameter
route: Specifies that the firewall operate in routing mode.
transparent: Specifies that the firewall operate in transparent mode.
Description
Use the firewall mode command to specify the operating mode of a firewall.
Use the undo firewall mode command to revert to the default operating mode.
A firewall operates in routing mode by default.
When a firewall operates in routing mode, all the interfaces of it operate in Layer
3. That is, you can assign IP addresses for these interfaces. Whereas when a
firewall operates in transparent mode, all the interfaces of it operate in Layer 2.
That is, the interfaces act as switching ports, and you cannot specify Layer 3
properties (such as assigning IP addresses) for them.
Example
# Specify the firewall to operate in transparent mode.
[SecBlade_FW] firewall mode transparent
Set system ip address successfully.
All the Interfaces’s ips have been deleted.
The mode is set successfully.
The output indicates that the firewall operates in transparent mode, and the IP
addresses of all its interfaces are removed.
firewall system-ip Syntax
firewall system-ip ip-address [ mask ]
undo firewall system-ip
View
System view
Parameter
ip-address: IP address of the firewall system.