Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual download pdf (Page 102)

ServerIron ADX Firewall Load Balancing Guide 91

53-1002436-01

Configuration example for a high-availability multizone FWLB

DRAFT: BROCADE CONFIDENTIAL

If the firewalls are multi-homed (allow more than one connection on each side of the protected

network), then it is possible to connect each ServerIron ADX to all the firewalls directly.

Figure 15

shows an example of this type of configuration.

FIGURE 15 IronClad FWLB configuration with multi-homed firewalls

In this example, each firewall has four interfaces. Each interface goes to a ServerIron ADX.

NOTE

If the firewalls are not multi-homed, you must use additional devices, typically Layer 2 switches, to

provide the redundant links. Figure 15 shows an example of an IronClad FWLB configuration that

uses Layer 2 switches to provide multi-homing between the ServerIron ADXs and firewalls.

External Router

Internal Router

SI-A

SI-B

SI-A

SI-B

Internet

Active

ServerIron A

1.1.1.10

Standby

ServerIron B

3.3.3.10

Active

ServerIron B

4.4.4.10

Standby

ServerIron A

2.2.2.10

FW1

FW2

1.1.1.20

2.2.2.20

Port e8

Port e2

Port e1

Port e8

Port e2

Port e1

1.1.1.4

2.2.2.4

3.3.3.4

4.4.4.4

Port e8

Port e2

Port e1

3.3.3.20

4.4.4.20

Port e8

Port e2

Port e1

1.1.1.3

2.2.2.3

3.3.3.3

4.4.4.3

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