Transparent Mode Scenario 2; Setting Up Transparent Mode - Scenario 2 - D-Link NetDefend DFL-210 User Manual

Network security firewall
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4.6.6. Transparent Mode Scenarios
Destination Interface: any
Source Network: 10.0.0.0/24
Destination Network: all-nets (0.0.0.0/0)
3.
Click OK
Scenario 2
Here the D-Link Firewall in Transparent Mode separates server resources from an internal network
by connecting them to a separate interface without the need for different address ranges.
Figure 4.9. Transparent mode scenario 2
All hosts connected to LAN and DMZ (the lan and dmz interfaces) share the 10.0.0.0/24 address
space. As this is configured using Transparent Mode any IP address can be used for the servers, and
there is no need for the hosts on the internal network to know if a resource is on the same network or
placed on the DMZ. The hosts on the internal network are allowed to communicate with an HTTP
server on DMZ while the HTTP server on the DMZ can be reached from the Internet. The firewall is
transparent between the DMZ and LAN while traffic can subjected to the IP rule set.
Example 4.14. Setting up Transparent Mode - Scenario 2
Configure a Switch Route over the LAN and DMZ interfaces for address range 10.0.0.0/24 (assume the WAN
interface is already configured).
Configure the interfaces:
Similar as shown in the previous example, first, we need to specify the involving interfaces lan, and dmz using the
example IP addresses for this scenario.
Interface Groups:
Similar as shown in the previous example. Configure both interfaces lanand dmzinto the same group.
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Chapter 4. Routing

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