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Example firewall rule, 3 example firewall rule – ZyXEL Communications 202H User Manual

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Prestige 202H User’s Guide

Customized Services

16-3

The next table describes the fields in this screen.

Table 16-2 Creating/Editing A Custom Port

FIELD DESCRIPTION EXAMPLE

Service Name

Enter a unique name for your custom port.

Service Type

Choose the IP port (TCP, UDP or TCP/UDP) that defines your
customized port from the drop down list box.

TCP/UDP

Port Configuration

Type Click Single to specify one port only or Range to specify a span

of ports that define your customized service.

Single

Range

Port Number Enter a single port number or the range of port numbers that

define your customized service.

Click Back to return to the previous screen. When you have finished, click Apply to save your customized
settings and exit this screen, Cancel to return to the previously saved settings, Delete to remove this
customized service. Click the Help icon for field descriptions.

16.3 Example Firewall Rule

The following are some Internet firewall rule examples that allow DHCP negotiation between the ISP and the
Prestige and allow a syslog connection from the Internet. Follow the procedure shown next to first configure
a custom port.

Step 1. Click Rule Summary under Internet to Local Network Set.

Step 2. Click a rule number to open the edit rule screen.

Step 3. Click Any in the Source Address box and then click ScrDelete.

Step 4. Click ScrAdd to open the Rule IP Config screen. Configure it as follows and click Apply.