Huawei HG8145V5 User Guide

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Figure 1 DoS Configuration

2. Click Apply.

Denial of service (DoS) attack is a network-based attack that denies users from accessing the Internet. The DoS attack initiates a large number of

network connections, making the server or the program running on the server break down or server resources exhaust or denying users to access the

Internet service. As a result, the network service fails.

Table 1 describes the parameters related to the DoS.

Table 1 Parameters related to the DoS

Parameter Description

Prevent SYN Flooding Attack Indicates whether to enable the prevent SYN flooding attack.

In the attack, several source hosts send SYN packets to a destination host. After

receiving the SYN ACK packets from the destination host, the source hosts do

not respond. In this case, the destination host establishes many connection

queues for the source hosts and maintains these queues all the time because no

ACK response is received. As a result, many resources are used and the

destination host fails to provide normal services for normal connections.

Prevent ICMP Echo Attack Indicates whether to enable the prevent ICMP echo attack.

In the attack, many ICMP echo packets are sent to a destination host within a

short time. As a result, the network is congested or the resources of the host are

exhausted.

Prevent ICMP Redirect Attack Indicates whether to enable the prevent ICMP redirect attack.

In the attack, many ICMP redirect packets are sent to a destination host within a

short time. As a result, the network is congested or the resources of the host are

exhausted.

Parent Topic: Security Configuration

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1.6.3.7 Precise Device Access Control

Click Advanced Configuration > Security Configuration tab, and choose Precise Device Access Control in the navigation tree on the left. Click

New. In the displayed window, set LAN port, SSID or WAN port information, including Priority, Protocol and Mode,as shown in Figure 1.

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Huawei HG8145V5 Terminal Router