ZyXEL Communications NVG2053, Руководство пользователя

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Chapter 16 Firewall
NVG2053 User’s Guide
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The following table describes the labels in this screen.
16.4 The Services Screen
Note: The ordering of your rules is very important as rules are applied in turn.
Click Security > Firewall > Services to bring up the following screen. This
screen displays a list of the configured firewall rules. Note the order in which the
rules are listed.
Click Security > Firewall > Services. The screen appears as shown next.
Figure 69 Security > Firewall > Services
The following table describes the labels in this screen.
Table 52 Security > Firewall > General
LABEL DESCRIPTION
Firewall Setup Select Enable to activate the firewall.
When the firewall is enabled, the NVG2053 blocks all incoming traffic
from the WAN to the LAN. Create custome rules to allow certain WAN
users to access your LAN or to allow traffic from the WAN to a certain
computer on the LAN.
Apply Click Apply to save your changes back to the NVG2053.
Cancel Click Cancel to begin configuring this screen afresh.
Table 53 Security > Firewall > Services
LABEL DESCRIPTION
Firewall Rule
#
This is your firewall rule number. The ordering of your rules is important
as rules are applied in turn.
Status This field displays whether a firewall rule is turned on or not.
Service Name This is a name that identifies or describes the firewall rule.
Protocol This is the protocol (TCP, UDP, ICMP or None) used to transport the
packets for which you want to apply the firewall rule.