User`s guide

LAN-Cell 2 User’s Guide
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CHAPTER 20
Custom Application Screens
20.1 Overview
Use custom application to have the LAN-Cell’s ALG and content filtering features monitor
traffic on custom ports, in addition to the default ports.
Use the Custom App screen (Section 26.1 on page 471) to configure custom application
settings on the LAN-Cell.
20.1.1 What You Need to Know About Custom Application
Default Ports
By default, these LAN-Cell features monitor traffic for the following protocols on these port
numbers.
• FTP: 21
• SIP: 5060
• H.323: 1720
• SMTP: 25
•POP3: 110
• HTTP: 80
20.2 The Custom Application Screen
Click ADVANCED > Custom APP to open the Custom Application screen.
" This screen only specifies what port numbers the LAN-Cell 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.