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Chapter 11 packet filtering – Compex Technologies WP11A+ User Manual

Page 74

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Chapter 11

Packet Filtering

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Chapter 11

Packet Filtering

11.1 Filtering

Compex WP11A+ allows Packet Filtering rules to be defined based on three factors,
Source IP Address, TCP Port and Time. IP Packet Filtering examines the outgoing
packets and decides whether to bypass or to block them. After the Packet Filtering rules
have been defined, the users may select to bypass or to block the outgoing packets that
do not match the rules.

Figure 11.1a

Adding Filtering Configuration

For example, assume that a rule has been defined as "TCP Port 23 (used by TELNET)
from any IP on any day at any time". If the “sent” radio button is selected, all outgoing
packets will be sent except TELNET session. If the discarded radio button is selected,
all outgoing packets will be blocked except TELNET session.

Click on Filtering function at the Command window.

Select on this
radio button