Network Router User's Manual

Prestige 2302 Support Notes
All contents copyright (c) 2005 ZyXEL Communications Corporation.
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• The following figure shows a configuration example to allow public access to an internal Web
server.
• The following table lists some common service port numbers.
Service Port Number
FTP 21
Telnet 23
SMTP 25
DNS (Domain Name Server) 53
www-http (Web) 80