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Quality of Service QoS Screen

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Chapter 6 Wireless LAN Table 31 Network > Wireless LAN > Advanced (continued) LABEL Extension Channel Aggregation DESCRIPTION If you select 40 MHz or Auto 20/40MHz as your Channel Bandwidth in the Wireless LAN > General screen, the extension channel enables the NBG-419N to get higher data throughput. This also lowers radio interference and traffic. Message Protocol Data Unit (MPDU) aggregation collects Ethernet frames along with their 802.11n headers and wraps them in a 802.11n MAC header. This method is useful for increasing bandwidth throughput in environments that are prone to high error rates. Short GI Enable Intra-BSS Traffic Mac Service Data Unit (MSDU) aggregation collects Ethernet frames without any of their 802.11n headers and wraps the header-less payload in a single 802.11n MAC header. This method is useful for increasing bandwidth throughput. It is also more efficient than A-MPDU except in environments that are prone to high error rates. Select Enable to use Short GI (Guard Interval). The guard interval is the gap introduced between data transmission from users in order to reduce interference. Reducing the GI increases data transfer rates but also increases interference. Increasing the GI reduces data transfer rates but also reduces interference. A Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless client and a wired network client go through one access point (AP). WLAN STA setting overwrites WLAN AP setting Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other. This field is available only when the NBG-418N is in universal repeater mode. Select Enabled to have the NBG-418N copy the SSID and wireless security settings of the associated AP, and use them for wireless connections between the NBG-418N and its wireless clients. Apply Reset Otherwise, select Disabled to configure different wireless and security settings for wireless connections between the NBG-418N and its wireless clients. Click Apply to save your changes to the NBG-418N. Click Reset to reload the previous configuration for this screen. 6.7 Quality of Service (QoS) Screen Use the QoS screen to enable Wifi MultiMedia Quality of Service (WMMQoS). This allows the NBG418N to automatically set priority levels to services, such as e-mail, VoIP, chat, and so on. Click Network > Wireless LAN > QoS. The following screen appears. Figure 56 Network > Wireless LAN > QoS 78 NBG-418N User's Guide

Section	Page
NBG-418N	1
Contents Overview	3
Table of Contents	5
User’s Guide	11
Introduction	13
1.1 Overview	13
1.2 Securing the NBG-418N	14
1.3 LEDs	15
1.4 The WPS Button	15
1.5 Wall Mounting	16
The Web Configurator	17
2.1 Overview	17
2.2 Accessing the Web Configurator	17
2.3 Resetting the NBG-418N	19
2.3.1 Using the RESET Button	19
Connection Wizard	21
3.1 Wizard Setup	21
3.2 Connection Wizard: STEP 1: System Information	22
3.2.1 System Name	22
3.2.2 Domain Name	23
3.3 Connection Wizard: STEP 2: Wireless LAN	23
3.3.1 WPA-PSK or WPA2-PSK Security	24
3.4 Connection Wizard: STEP 3: Internet Configuration	25
3.4.1 Ethernet Connection	26
3.4.2 PPPoE Connection	26
3.4.3 PPTP Connection	27
3.4.4 Your IP Address	28
3.4.5 WAN IP Address Assignment	29
3.4.6 IP Address and Subnet Mask	30
3.4.7 DNS Server Address Assignment	30
3.4.8 WAN IP and DNS Server Address Assignment	30
3.4.9 WAN MAC Address	31
3.5 Connection Wizard Complete	32
Modes	35
4.1 Overview	35
4.2 Setting your NBG-418N to Router Mode	36
4.2.1 Status Screen (Router Mode)	37
4.2.2 Router Mode Navigation Panel	42
4.3 Setting your NBG-418N to AP Mode	44
4.3.1 Status Screen (AP Mode)	45
4.3.2 AP Navigation Panel	47
4.4 Setting your NBG-418N to Universal Repeater Mode	48
4.4.1 Status Screen (Universal Repeater Mode)	49
4.4.2 Universal Repeater Navigation Panel	51
4.5 Setting your NBG-418N to Client Bridge Mode	52
4.5.1 Status Screen (Client Bridge Mode)	53
4.5.2 Client Bridge Navigation Panel	54
Tutorials	57
5.1 Overview	57
5.2 How to Connect to the Internet from an AP	57
5.2.1 Configure Wireless Security Using WPS on both your NBG-418N and Wireless Client	57
5.3 Enable and Configure Wireless Security without WPS on your NBG-418N	61
Technical Reference	65
Wireless LAN	67
6.1 Overview	67
6.2 What You Can Do	68
6.3 What You Should Know	69
6.3.1 Wireless Security Overview	69
6.4 General Wireless LAN Screen	70
6.4.1 No Security	72
6.4.2 WEP Encryption	73
6.4.3 WPA-PSK/WPA2-PSK	74
6.5 MAC Filter	75
6.6 Wireless LAN Advanced Screen	76
6.7 Quality of Service (QoS) Screen	78
6.8 WPS Screen	79
6.9 WPS Station Screen	80
6.10 Scheduling Screen	81
6.11 AP Select Screen	82
6.12 WLAN Info Screen	83
WAN	85
7.1 Overview	85
7.2 What You Need To Know	85
7.2.1 Configuring Your Internet Connection	85
7.3 Internet Connection	86
7.3.1 Ethernet Encapsulation	86
7.3.2 PPPoE Encapsulation	88
7.3.3 PPTP Encapsulation	90
LAN	93
8.1 Overview	93
8.2 What You Need To Know	93
8.2.1 IP Pool Setup	94
8.2.2 LAN TCP/IP	94
8.3 LAN IP Screen	94
DHCP Server	97
9.1 Overview	97
9.2 What You Can Do	97
9.3 What You Need To Know	97
9.4 General Screen	97
9.5 Advanced Screen	98
9.6 Client List Screen	100
Network Address Translation	101
10.1 Overview	101
10.2 What You Can Do	102
10.2.1 What You Need To Know	102
10.3 General NAT Screen	103
10.4 NAT Application Screen	104
10.5 Technical Reference	106
10.5.1 NAT Port Forwarding: Services and Port Numbers	106
10.5.2 NAT Port Forwarding Example	107
Dynamic DNS	109
11.1 Overview	109
11.2 Dynamic DNS Screen	109
Firewall	111
12.1 Overview	111
12.2 What You Can Do	111
12.3 What You Need To Know	112
12.3.1 About the NBG-418N Firewall	112
12.3.2 VPN Pass Through Features	112
12.4 General Firewall Screen	112
12.5 Services Screen	113
Remote Management	115
13.1 Overview	115
13.1.1 Remote Management Limitations	116
13.1.2 Remote Management and NAT	116
13.1.3 System Timeout	116
13.2 WWW Screen	116
Universal Plug-and-Play (UPnP)	119
14.1 Overview	119
14.2 What You Need to Know	119
14.3 Configuring UPnP	120
14.3.1 Using UPnP in Windows XP Example	120
14.3.2 Web Configurator Easy Access	122
System	125
15.1 Overview	125
15.2 What You Can Do	125
15.3 System General Screen	125
15.4 Time Setting Screen	126
Logs	129
16.1 Overview	129
16.2 What You Need to Know	129
16.3 View Log Screen	129
Tools	131
17.1 Overview	131
17.2 What You Can Do	131
17.3 Firmware Upload Screen	131
17.4 Configuration Screen	133
17.4.1 Backup Configuration	133
17.4.2 Restore Configuration	133
17.4.3 Back to Factory Defaults	134
17.5 Restart Screen	134
Sys OP Mode	137
18.1 Overview	137
18.2 General Screen	137
Language	139
19.1 Language Screen	139
Troubleshooting	141
20.1 Power, Hardware Connections, and LEDs	141
20.2 NBG-418N Access and Login	142
20.3 Internet Access	143
20.4 Resetting the NBG-418N to Its Factory Defaults	144
20.5 Wireless Problems	145
IP Addresses and Subnetting	147
Pop-up Windows, JavaScripts and Java Permissions	157
Setting Up Your Computer’s IP Address	167
Wireless LANs	195
Common Services	209
Legal Information	213

Match case Limit results 1 per page

Chapter 6 Wireless LAN

NBG-418N User’s Guide

6.7

Quality of Service (QoS) Screen

Use the

QoS

screen to enable Wifi MultiMedia Quality of Service (WMMQoS). This allows the NBG-

418N to automatically set priority levels to services, such as e-mail, VoIP, chat, and so on.

Click

Network

Wireless LAN

QoS

. The following screen appears.

Figure 56

Network > Wireless LAN > QoS

Extension Channel

If you select

40 MHz

Auto 20/40MHz

as your

Channel Bandwidth

in the

Wireless

LAN > General

screen, the extension channel enables the NBG-419N to get higher data

throughput. This also lowers radio interference and traffic.

Aggregation

Message Protocol Data Unit (MPDU) aggregation collects Ethernet frames along with their

802.11n headers and wraps them in a 802.11n MAC header. This method is useful for

increasing bandwidth throughput in environments that are prone to high error rates.

Mac Service Data Unit (MSDU) aggregation collects Ethernet frames without any of their

802.11n headers and wraps the header-less payload in a single 802.11n MAC header.

This method is useful for increasing bandwidth throughput. It is also more efficient than

A-MPDU except in environments that are prone to high error rates.

Short GI

Select

Enable

to use Short GI (Guard Interval). The guard interval is the gap introduced

between data transmission from users in order to reduce interference. Reducing the GI

increases data transfer rates but also increases interference. Increasing the GI reduces

data transfer rates but also reduces interference.

Enable Intra-BSS

Traffic

A Basic Service Set (BSS) exists when all communications between wireless clients or

between a wireless client and a wired network client go through one access point (AP).

Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is

enabled, wireless client

and

can access the wired network and communicate with

each other. When Intra-BSS is disabled, wireless client

and

can still access the wired

network but cannot communicate with each other.

WLAN STA setting

overwrites WLAN

AP setting

This field is available only when the NBG-418N is in universal repeater mode.

Select

Enabled

to have the NBG-418N copy the SSID and wireless security settings of

the associated AP, and use them for wireless connections between the NBG-418N and its

wireless clients.

Otherwise, select

Disabled

to configure different wireless and security settings for

wireless connections between the NBG-418N and its wireless clients.

Apply

Click

Apply

to save your changes to the NBG-418N.

Reset

Click

Reset

to reload the previous configuration for this screen.

Table 31

Network > Wireless LAN > Advanced (continued)

LABEL

DESCRIPTION