ZyXEL Communications P8802T, Руководство пользователя

Страница: 122 / 278

Chapter 7 Firewall
Basic Home Station VDSL2 P8802T User’s Guide
122
The following table describes the labels in this screen.
7.2.1 Default Policy Configuration
In the Firewall General screen, click Add or click an entry’s Edit icon to configure a firewall policy.
Figure 42
Firewall General: Add
The following table describes the labels in this screen.
Table 35
Firewall General
LABEL DESCRIPTION
Active Firewall Select this check box to activate the firewall. The VDSL Router performs access control and
protects against Denial of Service (DoS) attacks when the firewall is activated.
No. This displays the index number of the default firewall policy.
Active This field displays whether a policy is turned on or not. Select the check box to enable the
policy. Clear the check box to disable the policy.
Name This displays the name of the policy.
Interface This displays the LAN or WAN interface(s) to which this policy is applied.
Direction This displays the direction of travel of packets (In and Out).
Firewall rules are grouped based on the direction of travel of packets to which they apply.
Default Action This displays 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.
Drop: the VDSL Router silently discards the packets without sending a TCP reset packet or an
ICMP destination-unreachable message to the sender.
Permit: the VDSL Router allows the passage of the packets.
Remove Select entries and click the Remove button to delete them.
Edit Click the Edit button to go to the screen where you can edit the rule.
Add Click Add to create a new policy.
Apply Click Apply to save your changes back to the VDSL Router.
Table 36
Firewall General: Add
LABEL DESCRIPTION
Active Select this check box to enable the rule.
Name Enter a descriptive name using printable English keyboard characters.