Key Fields For Configuring Rules; Action; Service; Source Address - ZyXEL Communications VANTAGE CNM User Manual

12.4.9 Key Fields For Configuring Rules

12.4.9.1 Action

Should the action be to Block or Forward?

12.4.9.2 Service

Select the service from the Service scrolling list box. If the service is not listed, it is necessary
to first define it.

12.4.9.3 Source Address

What is the connection's source address; is it on the LAN, DMZ or WAN? Is it a single IP, a
range of IPs or a subnet?

12.4.9.4 Destination Address

What is the connection's destination address; is it on the LAN, DMZ or WAN? Is it a single
IP, a range of IPs or a subnet?

12.4.10 Alerts

Alerts are reports on events, such as attacks, that you may want to know about right away. You
can choose to generate an alert when an attack is detected by selecting the Generate alert
when attack detected checkbox
Configure the Log Settings screen to have the ZyXEL device send an immediate e-mail
message to you when an event generates an alert. Refer to the chapter on logs for details.

12.4.11 Services and Port Numbers

The most often used port numbers are shown in the following table. Please refer to RFC 1700
for further information about port numbers.

Table 63 Services and Port Numbers

SERVICES
ECHO
FTP (File Transfer Protocol)
SMTP (Simple Mail Transfer Protocol)
DNS (Domain Name System)
Finger
Chapter 12 Configuration > Firewall
Note: Block means the firewall silently discards the packet.
.
Vantage CNM User's Guide
PORT NUMBER
7
21
25
53
79
180