ZyXEL Communications EMG6726-B10A, Руководство пользователя

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Chapter 17 Firewall
EMG6726/8726-B10A User’s Guide
189
17.4 The Access Control Screen
Click Security > Firewall > Access Control to display the following screen. This screen displays a list of the
configured incoming or outgoing filtering rules.
Figure 124 Security > Firewall > Access Control
The following table describes the labels in this screen.
Protocol Choose the IP protocol ( TCP , UDP , ICMP , ICMPv6 or Other ) that defines your customized port
from the drop-down list box. Select Other to be able to enter a protocol number.
Source/
Destination Port These fields are displayed if you select TCP or UDP as the IP port.
Select Single to specify one port only or Range to specify a span of ports that define your
customized service. If you select Any , the service is applied to all ports.
Type a single port number or the range of port numbers that define your customized service.
Protocol
Number This field is displayed if you select Other as the protocol.
Enter the protocol number of your customized port.
ICMPv6 Type This field is displayed if you select ICMPv6 as the protocol.
Enter the type value for the ICMPv6 messages.
OK Click OK to save your changes.
Cancel Click Cancel to exit this screen without saving.
Table 75 Security > Firewall > Protocol: Add/Edit (continued)
LABEL DESCRIPTION
Table 76 Security > Firewall > Access Control
LABEL DESCRIPTION
Add New ACL
Rule Click this to go to add a filter rule for incoming or outgoing IP traffic.
# This is the index number of the entry.
Name This displays the name of the rule.
Src IP This displays the source IP addresses to which this rule applies. Please note that a blank source
address is equivalent to
Any .
Dst IP This displays the destination IP addresses to which this rule applies. Please note that a blank
destination address is equivalent to
Any .
Service This displays the transport layer protocol that defines the service and the direction of traffic to
which this rule applies.