ZyXEL ZyWALL 5 User Guide - Page 267

Chapter 13 Firewall Screens Table 75 SECURITY > FIREWALL > Service (continued) LABEL DESCRIPTION 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. 13.8.1 The Firewall Edit Custom Service Screen 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 B on page 783 for a list of commonly used services and port numbers. Figure 152 SECURITY > FIREWALL > Service > Add The following table describes the labels in this screen. Table 76 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. Port Range Enter the port number (from 1 to 255) that defines the customized service To specify one port only, enter the port number in the From field and enter it again in the To field. To specify a span of ports, enter the first port in the From field and enter the last port in the To field. Type/Code This field is available only when you select ICMP in the IP Protocol field. The ICMP messages are identified by their types and in some cases codes. Enter the type number in the Type field and select Code and enter the code number if any. Apply Click Apply to save your customized settings and exit this screen. Cancel Click Cancel to exit this screen without saving. ZyWALL 5/35/70 Series User's Guide 267