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Chapter 10 Firewall
P-870H/HW Series User’s Guide
139
The following table describes the labels in this screen.
Table 47
Firewall > Incoming
LABEL
DESCRIPTION
Active Firewall
Select this check box to enable the firewall on the ZyXEL Device. When
the firewall is enabled, the ZyXEL Device blocks all incoming traffic from
the WAN to the LAN. Create customized 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.
Active
Select this check box to enable the rule.
Filter Name
This displays the name of the rule.
Interfaces
This displays the WAN interface(s) to which this rule is applied.
Protocol
This displays the IP protocol that defines the service to which this rule
applies.
Source Address
/ Mask
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.
Source Port
This is the source port number.
Dest. Address /
Mask
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.
Dest. Port
This is the destination port number.
Modify
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.
Add
Click Add to create a new rule.
Apply
Click Apply to save your changes back to the ZyXEL Device.