Zyxel-communications 5 Series Manual do Utilizador descarregar pdf (Página 244)

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ZyWALL 5/35/70 Series User’s Guide

244 Chapter 11 Firewall

11.13.1 Firewall Edit Custom Service

Click SECURITY > FIREWALL > Service > Add to display the following screen. Use this

screen to configure a custom service entry not is not predefined in the ZyWALL. See

Appendix F on page 753for a list of commonly used services and port numbers.

Figure 123 Firewall Edit Custom Service

The following table describes the labels in this screen.

Add Click this button to bring up the screen that you use to configure a new custom

service that is not in the predefined list of services.

Predefined

Service

This table shows all the services that are already configured for use in firewall

rules. See Appendix F on page 753 for a list of common services.

# This is the index number of the predefined service.

Service Name This is the name of the service.

Protocol This is the IP protocol type. There may be more than one IP protocol type.

Attribute This is the IP port number or ICMP type and code that defines the service.

Table 72 SECURITY > FIREWALL > Service (continued)

LABEL DESCRIPTION

Table 73 SECURITY > FIREWALL > Service > Add

LABEL DESCRIPTION

Service Name Enter a descriptive name of up to 31 printable ASCII characters (except Extended

ASCII characters) for the custom service. You cannot use the “(“ character.

Spaces are allowed.

IP Protocol Choose the IP protocol (TCP, UDP, TCP/UDP, ICMP or Custom) that defines

your customized service from the drop down list box.

If you select Custom, specify the protocol’s number. For example, ICMP is 1,

TCP is 6, UDP is 17 and so on.

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