The Firewall General Screen - ZyXEL Communications P-793H v3 User Manual

10.2 The Firewall General Screen

Use this screen to configure the firewall settings. Click Security > Firewall to display the following
screen.
Figure 60 Security > Firewall > General
The following table describes the labels in this screen.
Table 35 Security > Firewall > General
LABEL
Active Firewall
Packet Direction
Default Action
Log
Expand...
Basic...
Apply
Cancel
Chapter 10 Firewalls
DESCRIPTION
Select this check box to activate the firewall. The P-79X performs access control
and protects against Denial of Service (DoS) attacks when the firewall is
activated.
This is the direction of travel of packets (LAN to LAN / Router, LAN to WAN,
WAN to WAN / Router, WAN to LAN).
Firewall rules are grouped based on the direction of travel of packets to which
they apply. For example, LAN to LAN / Router means packets traveling from a
computer/subnet on the LAN to either another computer/subnet on the LAN
interface of the P-79X or the P-79X itself.
Use the drop-down list boxes to select the default action that the firewall is to
take on packets that are traveling in the selected direction and do not match any
of the firewall rules.
Select Drop to silently discard the packets without sending a TCP reset packet or
an ICMP destination-unreachable message to the sender.
Select Reject to deny the packets and send a TCP reset packet (for a TCP
packet) or an ICMP destination-unreachable message (for a UDP packet) to the
sender.
Select Permit to allow the passage of the packets.
Select the check box to create a log (when the above action is taken) for packets
that are traveling in the selected direction and do not match any of your
customized rules.
Click this to display more information.
Click this to display less information.
Click this to save your changes.
Click this to restore your previously saved settings.
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