ZyXEL Communications P-870HN-5xb User Manual page 165

The following table describes the labels in this screen.
Table 50 Firewall > Incoming
LABEL
Active Firewall
Active
Filter Name
Interfaces
Protocol
Source Address
/ Mask
Source Port
Dest. Address /
Mask
Dest. Port
Modify
Add
Apply
P-870HN-5xb User's Guide
DESCRIPTION
Select this check box to enable the firewall on the Device. When the
firewall is enabled, the Device blocks all incoming traffic from the WAN
to the LAN. Create custom rules below to allow certain WAN users to
access your LAN or to allow traffic from the WAN to a certain computer
on the LAN.
Select this check box to enable the rule.
This displays the name of the rule.
This displays the WAN interface(s) to which this rule is applied.
This displays the IP protocol that defines the service to which this rule
applies.
This displays the source IP addresses and subnet mask to which this
rule applies. Please note that a blank source address is equivalent to
Any.
This is the source port number.
This displays the destination IP addresses and subnet mask to which
this rule applies. Please note that a blank destination address is
equivalent to Any.
This is the destination port number.
Click the Edit icon to go to the screen where you can edit the rule.
Click the Remove icon to delete an existing rule. Note that subsequent
rules move up by one when you take this action.
Click Add to create a new rule.
Click Apply to save your changes back to the Device.
Chapter 10 Firewall
165