Scenarios: Enabling Transparent Mode - D-Link DFL-1600 User Manual

286 Chapter 27. Transparent Mode
If the CAM table or the Layer 3 Cache is full, the tables are partially
flushed automatically. Using the discovery mechanism, the firewall will
rediscover destinations that may have been flushed.
27.3 : Enabling Transparent
Mode
Example:
Transparent Mode Scenario 1
Figure 27.1: Transparent Mode Scenario 1.
Scenario 1 shows how a firewall in Transparent Mode can be placed in an
existing network between an Internet access router and the internal
network, without the need to reconfigure clients in the internal network.
In this scenario a router is used to share an Internet connection with a
single public IP address. The internal NAT:ed network behind the firewall
is in the 10.0.0.0/24 address space. Clients on the internal network should
be allowed to access the Internet via the HTTP protocol.
The WAN and LAN interfaces of the firewall will have to be configured to
operate in Transparent Mode. It is preferred to configure IP addresses on
the WAN and LAN interfaces, as this can improve performance during
automatic discovering of hosts.
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