Chapter 11 Firewall

 

Table 55 SECURITY > FIREWALL > Service > Add (continued)

 

LABEL

DESCRIPTION

 

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 the Code radio button 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.

 

 

 

11.14 My Service Firewall Rule Example

The following Internet firewall rule example allows a hypothetical My Service connection from the Internet.

1In the Service screen, click Add to open the Edit Custom Service screen.

Figure 144 My Service Firewall Rule Example: Service

2Configure it as follows and click Apply.

Figure 145 My Service Firewall Rule Example: Edit Custom Service

3Click Rule Summary. Select WAN and LAN from the Packet Direction drop-down list boxes and click Refresh to display existing firewall rules for the selected direction of travel of packets.

 

217

ZyWALL 2 Plus User’s Guide