ZyXEL Communications vantage cnm ユーザーズマニュアル

 Chapter 6 Device Security Settings

Vantage CNM User’s Guide

Each device has a different number of rules and custom ports; see the device User Guide for 
more details.

In 

, click Edit to modify an existing firewall rule or click Insert to 

create a new firewall rule.

Rule Summary

The following fields summarize the rules you have created that apply to 
traffic traveling in the selected packet direction. The firewall rules that 
you configure (summarized below) take priority over the general 
firewall action settings above. Select an ACL hyperlink to edit that ACL 
rule.

#

This is your firewall rule number. Select a rule hyperlink to edit that rule. 
The ordering of your rules is important as rules are applied in turn. The 
Move field below allows you to reorder your rules.

Rule Name

This is the name of the firewall rule.

Active

This field displays whether a firewall is turned on (true) or not (false).

Source Address

This field lists the source IP address of the incoming packet. Click the 
list box to see all source address configured for the firewall rule.

Destination Address

This field lists the destination IP address of the outgoing packet. Click 
the list box to see all destination address configured for the firewall 
rule.

Service Type

This field displays the services to which this firewall rule applies.  Click 
the list box to see all service type configured for the firewall rule. See 

 for more information.

Action

This field displays whether the firewall silently discards packets (Drop), 
discards packets and sends a TCP reset packet or an ICMP 
destination-unreachable message to the sender (Reject) or allows the 
passage of packets (Permit).

Log

This field shows you whether a log is created when packets match this 
rule (Yes) or not (No).

Alert

This field tells you whether this rule generates an alert (true) or not 
(false) when the rule is matched.

Insert

Click the insert icon to display the screen where you can configure a 
new firewall rule. The insert icon at the top of the row creates the new 
firewall rule before the others. The individual firewall rule insert icons 
create a new firewall rule after the row’s firewall rule.

Move

Click Move to display the screen where you can move the rule to the 
number that you typed. The ordering of your rules is important as they 
are applied in order of their numbering.

Edit

Click Edit to modify a firewall rule.

Remove

Click Remove to delete an existing firewall rule. Note that subsequent 
firewall rules move up by one when you take this action.

Table 41   Device Operation > Device Configuration > Security > Firewall > Rule Summary