Protocol (Customized Services) - ZyXEL Communications AX Series User Manual

Table 88 Security > Firewall > General (continued)
LABEL DESCRIPTION
High This setting blocks all traffic to and from the Internet. Only local network traffic and LAN to WAN service
(Telnet, FTP, HTTP, HTTPS, DNS, POP3, SMTP) is permitted.
Medium This is the recommended setting. It allows traffic to the Internet but blocks anyone from the Internet
from accessing any services on your local network.
Low This setting allows traffic to the Internet and also allows someone from the Internet to access services on
your local network. This would be used with Port Forwarding, Default Server.
Apply Click this to save your changes.
Cancel Click this to restore your previously saved settings.

16.4 Protocol (Customized Services)

You can configure customized services and port numbers in the Protocol screen. Each set of protocol
rules listed in the table are reusable objects to be used in conjunction with ACL rules in the Access
Control screen. For a comprehensive list of port numbers and services, visit the IANA (Internet Assigned
Number Authority) website. Click Security > Firewall > Protocol to display the following screen.
Note: Removing a protocol rule will also remove associated ACL rules.
Figure 171 Security > Firewall > Protocol
The following table describes the labels in this screen.
Table 89 Security > Firewall > Protocol
LABEL
Add New
Protocol
Entry
Name
Description
Ports/
Protocol
Number
Modify
Chapter 16 Firewall
DESCRIPTION
Click this to configure a customized service.
This is the name of your customized service.
This is a description of your customized service.
This shows the port number or range and the IP protocol (TCP or UDP) that defines your customized
service.
Click this to edit a customized service.
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