ZyXEL Communications unified security gateway User Manual
Chapter 7 Tutorials
ZyWALL USG 20/20W User’s Guide
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7.11.1 Turn On the ALG
Click Configuration > Network > ALG. Select Enable SIP ALG and Enable
SIP Transformations
SIP Transformations
and click Apply.
Figure 97 Configuration > Network > ALG
7.11.2 Create the Address Objects
Use Configuration > Object > Address > Add to create the address objects.
1
Create a host address object named IPPBX-DMZ for the IPPBX’s private DMZ IP
address of 192.168.3.9.
address of 192.168.3.9.
Figure 98 Creating the Address Object for the IPPBX’s Private IP Address