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ZyWALL 2WG User’s Guide
471
C
H A P T E R
26
Custom Application Screen
26.1 Overview
Use custom application to have the ZyWALL’s ALG and content filtering features monitor
traffic on custom ports, in addition to the default ports.
Use the
Custom App
screen (
) to configure custom application
settings on the ZyWALL.
26.1.1 What You Need to Know About Custom Application
Default Ports
By default, these ZyWALL features monitor traffic for the following protocols on these port
numbers.
• FTP: 21
• SIP: 5060
• H.323: 1720
• SMTP: 25
• POP3: 110
• HTTP: 80
26.2 The Custom Application Screen
Click
ADVANCED > Custom APP
to open the
Custom Application
screen.
"
This screen only specifies what port numbers the ZyWALL checks for specific
protocol traffic. Use other screens to enable or disable the monitoring of the
protocol traffic.
"
Changes in the
Custom APP
screen do not apply to the firewall.