Huawei HG8247H Router Manual PDF (Setup & Configuration Guide)

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Figure 5-16

Wi-Fi Advanced Configuration

2.

Click

Apply

to apply the configuration.

Table 5-5

describes the advanced Wi-Fi parameters.

Table 5-5

Advanced Wi-Fi parameters

Parameter

Description

Transmitting Power

Indicates the transmit power of the wireless signals. It can be set

to 25%, 50%, 75%, or 100%. The greater the value is, the better

is the coverage of the wireless signals.

Regulatory Domain

Indicates the country code of the wireless network.

Channel

Indicates the channel of the wireless network. It varies with

Regulatory Domain

.

Channel Width

Indicates the wireless channel width. Options are auto 20/40 and

20 MHz.

Mode

Indicates the working mode of the Wi-Fi terminal NIC. The NIC

can negotiate among the 802.11b, 802.11g, 802.11n and

802.11b/g modes.

Advanced Configuration

Indicates whether to enable the advanced Wi-Fi configuration.

The following parameters can be set only when the advanced

Wi-Fi configuration is enabled.

DTIM Period

Indicates the delivery period of the delivery traffic indication

map (DTIM). It ranges from 1 to 125, and the default value is 1.

Beacon Period

Indicates the delivery period of the beacon. The beacon is used

to contact other access point devices or network control devices.

It ranges from 20 ms to 1000 ms, and the default value is 100

ms.

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Parameter

Description

RTS Threshold

Indicates the request to send (RTS) threshold. It is used to

prevent the conflict in data transmission in the wireless LAN.

The smaller the RTS threshold, the larger the frequency of RTS

packet transmission, and the faster of the system recovery from

the interruption or conflict. However, more bandwidth is used,

which affects the throughput of other network data packets.

It ranges from 1 byte to 2346 bytes, and the default value is 2346

bytes.

Frag Threshold

Indicates the fragment threshold. When the size of a packet is

greater than this threshold, the packet will be fragmented. If the

transmission of fragments is interrupted, only the parts that are

not successfully transmitted need to be retransmitted.

It ranges from 256 bytes to 2346 bytes, and the default value is

2346 bytes.

5.5 Security

This topic describes how to configure the IP address filter, MAC address filter, DoS, and ONT

access control through the Web page.

5.5.1 IP Filter Configuration

5.5.2 MAC Filter Configuration

5.5.3 DoS Configuration

5.5.4 ONT Access Control Configuration

5.5.1 IP Filter Configuration

1.

In the navigation tree on the left, choose

Security

>

IP Filter Configuration

. In the pane

on the right, enable the IP address filter function. After selecting the filter mode, click

New

. Then, in the dialog box that is displayed, configure the rule for filtering IP addresses

from the WAN interface to the LAN port, as shown in

Figure 5-17

.

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Figure 5-17

IP Filter Configuration

2.

Click

Apply

to apply the configuration.

The IP address filter function is a security mechanism configured on the residential gateway. It

enables or disables all or partial ports in an Intranet IP address segment to communicate with

all or partial ports in an Extranet IP address segment. The IP address filter configuration is used

to limit communication between an Intranet device and an Extranet device.

Table 5-6

describes the parameters related to the IP address filter.

Table 5-6

Parameters related to the IP address filter

Parameter

Description

IP address filter function

Indicates whether to enable the IP address filter function by

clicking

OPEN

or

CLOSE

.

Filter Mode

Indicates the IP address filter rule of the blacklist or whitelist.

l

Blacklist: indicates that the data meeting the rule in the filter

rule list is not allowed to pass.

l

Whitelist: indicates that the data meeting the rule in the filter

rule list is allowed to pass.

The filter mode is global config mode. Thus, the blacklist and

whitelist mode cannot be used at the same time.

Protocol

Indicates the type of the protocol, which may be TCP/UDP,

TCP, UDP, ICMP, or ALL.

LAN-side IP Address

Indicates the IP address on the LAN side.

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Parameter

Description

LAN-side Port

Indicates the port ID on the LAN side. This parameter can be

configured when

Protocol

is set to

TCP/UDP

,

TCP

or

UDP

.

WAN-side IP Address

Indicates the IP address on the WAN side.

WAN-side Port

Indicates the ID of the WAN side port. This parameter can be

configured when

Protocol

is set to

TCP/UDP

,

TCP

or

UDP

.

5.5.2 MAC Filter Configuration

1.

In the navigation tree on the left, choose

Security

>

MAC Filter Configuration

. In the

pane on the right, after enabling MAC filter and selecting the filter mode, click

New

. On

the dialog box that is displayed, configure the MAC filter rule for the PC to access the

Internet, as shown in

Figure 5-18

.

Figure 5-18

MAC Filter Configuration

2.

Click

Apply

to apply the configuration.

The MAC address lists of PCs in the network are saved on the ONT. Configuring MAC filter

rules enables the PCs that conform to the rules to access the Internet service or disables the PCs

that do not conform to the rules to access the Internet service. A PC may have more than one IP

addresses but a unique MAC address. Therefore, configuring MAC filter rules effectively

controls the Internet service access rights of PCs in a LAN.

Table 5-7

describes the parameters related to the MAC filter.

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Table 5-7

Parameters related to the MAC address filter

Parameter

Description

MAC address filter function

Indicates whether to enable the MAC address

filter function by clicking

OPEN

or

CLOSE

.

Filter Mode

Indicates the MAC address filter rule of the

blacklist or whitelist.

l

Blacklist: indicates that the data meeting

the rule in the filter rule list is not allowed

to pass.

l

Whitelist: indicates that the data meeting

the rule in the filter rule list is allowed to

pass.

The filter mode is global config mode. Thus,

the blacklist and whitelist mode cannot be

used at the same time.

Source MAC Address

Indicates the source MAC address in the

MAC address filter rule.

5.5.3 DoS Configuration

1.

In the navigation tree on the left, choose

Security

>

DoS Configuration

. In the pane on

the right, determine whether to enable the DoS attack-preventive configuration, as shown

in

Figure 5-19

.

Figure 5-19

DoS Configuration

2.

Click

Apply

to apply the configuration.

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 5-8

describes the parameters related to the DoS.

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