ZyXEL Communications Corporation VMG8924B10A Manual De Usuario

 Chapter 15 Firewall

VMG8924-B10A User’s Guide

The following table describes the labels in this screen.

Access Control: Add/Edit

Filter Name

Enter a descriptive name of up to 16 alphanumeric characters, not including spaces, 
underscores, and dashes. 

You must enter the filter name to add an ACL rule. This field is read-only if you are editing 
the ACL rule.

Order

Select the order of the ACL rule.

Select Source 
Device

Select the source device to which the ACL rule applies. If you select Specific IP Address, 
enter the source IP address in the field below.

Source IP 
Address

Enter the source IP address.

Select 
Destination 
Device

Select the destination device to which the ACL rule applies. If you select Specific IP 
Address, enter the destiniation IP address in the field below.

Destination IP 
Address

Enter the destination IP address.

IP Type

Select whether your IP type is IPv4 or IPv6. 

Select Protocol

Select the transport layer protocol that defines your customized port from the drop-down 
list box. The specific protocol rule sets you add in the Security > Firewall > Service > 
Add screen display in this list. 

If you want to configure a customized protocol, select Specific Service.

Protocol

This field is displayed only when you select Specific Protocol in Select Protocol.

Choose the IP port (TCP/UDP, TCP, UDP, ICMP, or ICMPv6) that defines your customized 
port from the drop-down list box.

Custom Source 
Port

This field is displayed only when you select Specific Protocol in Select Protocol.

Enter a single port number or the range of port numbers of the source.

Custom 
Destination Port

This field is displayed only when you select Specific Protocol in Select Protocol.

Enter a single port number or the range of port numbers of the destination.

Policy

Use the drop-down list box to select whether to discard (DROP), deny and send an ICMP 
destination-unreachable message to the sender of (REJECT) or allow the passage of 
(ACCEPT) packets that match this rule.

Direction 

Use the drop-down list box to select the direction of traffic to which this rule applies.

Enable Rate 
Limit

Select this check box to set a limit on the upstream/downstream transmission rate for the 
specified protocol.

Specify how many packets per minute or second the transmission rate is.

Scheduler Rules Select a schedule rule for this ACL rule form the drop-down list box. You can configure a 

new schedule rule by click Add New Rule. This will bring you to the Security > Scheduler 
Rules screen.

Apply

Click Apply to save your changes.

Cancel

Click Cancel to exit this screen without saving.