The Disadvantage Of Routing Rules - D-Link NetDefendOS User Manual

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communication between the virtual systems. For example, Department A does not need to

communicate with Department B. If communication between them is needed then an

appropriate loopback interface pair would have to be defined to allow this.

After we define a loopback interface, all traffic sent to that interface automatically appears as

being received on another interface.

4.5.3. The Disadvantage of Routing Rules

Using Routing Rules can solve many of the problems that virtual routing can but complex

configurations can become unwieldy for such rules. Consider a single NetDefend Firewall being

used as a firewall for two organizations, both using the same IP span.

In this case, two separate routing tables could be used, one for each organization as shown

Two routing tables pbr1 and pbr2 are first defined for this scenario. Their contents are listed

Routing Table pbr1

Routing Table pbr2

Figure 4.9. The Disadvantage of Routing Rules

192.168.0.0/24

Chapter 4: Routing

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