ZyXEL 2WG Betriebsanweisung

Chapter 12 Firewall Screens

ZyWALL 2WG User’s Guide

The following table describes the labels in this screen.    

Table 71   SECURITY > FIREWALL > Rule Summary > Edit

Rule Name

Enter a descriptive name of up to 31 printable ASCII characters (except Extended 

ASCII characters) for the firewall rule. Spaces are allowed. 

Edit Source/

Destination 

Address

Address Type

Do you want your rule to apply to packets with a particular (single) IP, a range of IP 

addresses (for example 192.168.1.10 to 192.169.1.50), a subnet or any IP 

address? Select an option from the drop-down list box that includes: Single 

Address, Range Address, Subnet Address and Any

Address.

Start IP Address

Enter the single IP address or the starting IP address in a range here. 

End IP Address

Enter the ending IP address in a range here.

Subnet Mask

Enter the subnet mask here, if applicable.

Add

Click Add to add a new address to the Source or Destination Address(es) box. 

You can add multiple addresses, ranges of addresses, and/or subnets.

Modify

To edit an existing source or destination address, select it from the box and click 

Modify.

Delete

Highlight an existing source or destination address from the Source or 

Destination Address(es)  box above and click Delete to remove it.

Edit Service

Available/ 

Selected 

Services

Highlight a service from the Available Services box on the left, then click >> to 

add it to the Selected Service(s) box on the right. To remove a service, highlight it 

in the Selected Service(s) box on the right, then click <<.
Next to the name of a service, two fields appear in brackets. The first field indicates 

the IP protocol type (TCP, UDP, or ICMP). The second field indicates the IP port 

number that defines the service. (Note that there may be more than one IP 

protocol type). For example, look at the DNS entry, (UDP/TCP:53) means UDP 

port 53 and TCP port 53. Click the Service link to go to the Service screen where 

you can configure custom service ports. See 

 for a list of 

commonly used services and port numbers. 
You can use the [CTRL] key and select multiple services at once.

Edit Schedule

Day to Apply

Select everyday or the day(s) of the week to apply the rule.

Time of Day to 

Apply (24-Hour 

Format)

Select All Day or enter the start and end times in the hour-minute format to apply 

the rule.

Actions When 

Matched

Log Packet 

Information When 

Matched

This field determines if a log for packets that match the rule is created (Yes) or not 

(No). Go to the Log Settings page and select the Access Control logs category 

to have the ZyWALL record these logs.

Send Alert 

Message to 

Administrator 

When Matched

Select the check box to have the ZyWALL generate an alert when the rule is 

matched.