ZyXEL Communications GS-4012 - Manual (Page 155)

Chapter 18 Classifier
GS-4012F/4024 User’s Guide
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Some of the most common IP ports are:
18.4 Classifier Example
The following screen shows an example where you configure a classifier that identifies all
traffic from MAC address 00:50:ba:ad:4f:81 on port 2.
After you have configured a classifier, you can configure a policy (in the Policy screen) to
define action(s) on the classified traffic flow.
Table 45 Common IP Ports
PORT NUMBER PORT NAME
21 FTP
23 Telnet
25 SMTP
53 DNS
80 HTTP
110 POP3