Chapter 21 ALG

•See Section 21.3 on page 407 for ALG background/technical information.

21.1.3Before You Begin

You must also configure the firewall and enable NAT in the ZyWALL to allow sessions initiated from the WAN.

21.2 The ALG Screen

Click Configuration > Network > ALG to open the ALG screen. Use this screen to turn ALGs off or on, configure the port numbers to which they apply, and configure SIP ALG time outs.

Note: If the ZyWALL provides an ALG for a service, you must enable the ALG in order to use the application patrol on that service’s traffic.

Figure 303 Configuration > Network > ALG

 

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ZyWALL USG 2000 User’s Guide