ZyXEL Communications VMG1312-B10C, Руководство пользователя

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Chapter 14 Firewall
VMG1312-B10C User’s Guide
187
14.3.1 Add/Edit a Service
Use this screen to add a customized service rule that you can use in the firewall’s ACL rule
configuration. Click
Add new service entry or the edit icon next to an existing service rule in the
Service screen to display the following screen.
Figure 103
Service: Add/Edit
The following table describes the labels in this screen.
Table 76
Service: Add/Edit
LABEL DESCRIPTION
Protocol Choose the IP protocol ( TCP , UDP , ICMP , or Other ) that defines your customized port from
the drop-down list box. Select Other to be able to enter a protocol number.
Source/
Destination Port These fields are displayed if you select TCP or UDP as the IP port.
Select Single to specify one port only or Range to specify a span of ports that define your
customized service. If you select Any , the service is applied to all ports.
Type a single port number or the range of port numbers that define your customized
service.
Protocol
Number This field is displayed if you select Other as the protocol.
Enter the protocol number of your customized port.
Add Click this to add the protocol to the Rule List below.
Rule List
Protocol This is the IP port ( TCP , UDP , ICMP , or Other ) that defines your customized port.
Ports/Protocol
Number For TCP , UDP , ICMP , or TCP/UDP protocol rules this shows the port number or range that
defines the custom service. For other IP protocol rules this shows the protocol number.
Modify/Delete Click the Delete icon to remove the rule.