ZyXEL Communications 91-009-073003B ユーザーズマニュアル
Chapter 19 ALG
ZyWALL USG 50 User’s Guide
339
• See
19.1.3 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.
19.2 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 204 Configuration > Network > ALG