ZyXEL Communications ZyWALL 2 Plus - Manual (Page 217)

Chapter 11 Firewall
ZyWALL 2 Plus User’s Guide
217
11.14 My Service Firewall Rule Example
The following Internet firewall rule example allows a hypothetical My Service connection
from the Internet.
1 In the Service screen, click Add to open the Edit Custom Service screen.
Figure 144 My Service Firewall Rule Example: Service
2 Configure it as follows and click Apply.
Figure 145 My Service Firewall Rule Example: Edit Custom Service
3 Click 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.
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.
Table 55 SECURITY > FIREWALL > Service > Add (continued)
LABEL DESCRIPTION