30
addresses. Packet Filter can work with Scheduling Rules, and give user more flexibility on
Access control. For Detail, please refer to Scheduling Rule.
Each rule can be enabled or disabled individually.
4.5.1.1 Inbound Filter:
To enable Inbound Packet Filter click the check box next to Enable in the Inbound
Packet Filter field.
Suppose you have SMTP Server (25), POP Server (110), Web Server (80), FTP Server (21),
and News Server (119) defined in Virtual Server or DMZ Host.
Example 1:
• (1.2.3.100-1.2.3.149) They are allow to send mail (port 25), receive mail (port 110),
and browse the Internet (port 80)
• (1.2.3.10-1.2.3.20) They can do everything (block nothing)
• Others are all blocked.
Example 2:
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