ZyXEL Communications 1000 User Manual
Chapter 21 ALG
ZyWALL USG 1000 User’s Guide
405
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21.1.3 Before You Begin
You must also configure the firewall and enable NAT in the ZyWALL to allow
sessions initiated from the WAN.
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.
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