Content Filtering - H3C MSR 900 Series Quick Start Manual

Item
Destination
Port
Operation
Table 3-2 Common services and corresponding port numbers
Service
FTP service
Telnet service
TFTP service
Web service

Content Filtering

The content filtering function allows you to control the websites users
can access. You can perform such content filtering by the host names,
protocol types, or website addresses.
Follow these steps to configure content filtering rules:
Select Security Setup > URL Filter from the navigation tree to enter
the URL filtering configuration page shown below.
Specifies the ports through which hosts on the LAN
access the Internet.
For example, for the telnet port (23), enter 23 ~ 23.
Specifies the status of the rule:
Deny: Filters out packets matching the rule while
allowing other packets to pass.
Permit: Filters out all packets except those
matching the rule.
None: The rule is ineffective.
Protocol
TCP
TCP
UDP
TCP
3-18
Description
Port number
21
23
69
80