ZyXEL Communications LTE6100, Руководство пользователя

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Chapter 10 Firewall
LTE6100 User’s Guide
75
10.5 The DoS Screen
Click Security > Firewall > DoS to display the following screen. Use this screen to enable or
disable Denial of Service (DoS) protection.
Figure 43
Security > Firewall > DoS
Destination IP
Address Start Enter an IP address or the starting IP address of the destination IP range.
Destination IP
Address End Enter the ending IP address of the destination IP range.
Select Protocol Select the name of a configured service or select Select Service to define a new service
in this screen.
Protocol This field is available when you select Select Service in Select Protocol.
Choose the protocol type (TCP, UDP, ICMP or Others) of the service.
Protocol Number This field is available when you select Others in Protocol.
Enter the protocol number of the service type to which this ACL rule applies.
Source Port This field is displayed only when you select Select Service in Select Protocol and TCP
or UDP in Protocol.
Select Single or Range and then enter a single port number or the range of port
numbers of the source. Select Any to indicate any source port.
Destination Port This field is displayed only when you select Select Service in Select Protocol and TCP
or UDP in Protocol.
Select Single or Range and then enter a single port number or the range of port
numbers of the destination. Select Any to indicate any destination port.
Policy Use the drop-down list box to select whether to silently discard (DROP), deny and send
an ICMP destination-unreachable message to the sender of (REJECT) or allow the
passage of (PERMIT) packets that match this rule.
Direction Use the drop-down list box to select the direction of traffic to which this rule applies. The
possible options are LAN to DEVICE, LAN to WAN, WAN to LAN, and WAN to
DEVICE.
Apply Click Apply to save your changes.
Back Click Back to exit this screen without saving your changes.
Table 31
Security > Firewall > Access Control > Add New ACL Rule/Edit (continued)
LABEL DESCRIPTION