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Page 36 / 161 Scroll up to view Page 31 - 35
Specify Your Internet Settings
36
N600 WiFi Dual Band Gigabit Router
•
Use DHCP Server
. This method passes more information to LAN devices but some
IPv6 systems might not support the DHCv6 client function.
•
Auto Config
. This is the default setting.
This setting specifies how the router assigns IPv6 addresses to the devices on your home
network (the LAN).
10.
(Optional) Select the
Use This Interface ID
check box and specify the interface ID to be
used for the IPv6 address of the router’s LAN interface.
If you do not specify an ID here, the router generates one automatically from its MAC
address.
11.
Click the
Apply
button.
Your settings are saved.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path uses a lower MTU
setting than the other devices, the data packets must be split or “fragmented” to
accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default value. In some situations,
changing the value fixes one problem but causes another. Leave the MTU unchanged unless
one of these situations occurs:
•
You experience problems connecting to your ISP or other Internet service, and the
technical support of either the ISP or NETGEAR recommends changing the MTU setting.
These web-based applications might require an MTU change:
-
A secure website that does not open or displays only part of a web page
-
Yahoo email
-
MSN portal
-
America Online’s DSL service
•
You use VPN and experience severe performance problems.
•
You used a program to optimize MTU for performance reasons and now you are
experiencing connectivity or performance problems.
Note:
An incorrect MTU setting can cause Internet communication
problems. For example, you might not be able to access certain
websites, frames within websites, secure login pages, or FTP or POP
servers.
Page 37 / 161
Specify Your Internet Settings
37
N600 WiFi Dual Band Gigabit Router
To change the MTU size:
1.
Launch a web browser from a computer or wireless device that is connected to the
network.
2.
Type
or
.
A login screen displays.
3.
Enter the router user name and password.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4.
Select
ADVANCED > Setup > WAN Setup
.
5.
In the
MTU Size
field, enter a value from 64 to 1500.
6.
Click the
Apply
button.
Your settings are saved.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
until the problem goes away. The following table describes common MTU sizes and
applications.
Table 2.
Common MTU sizes
MTU
Application
1500
The largest Ethernet packet size. This setting is typical for connections that do not use
PPPoE or VPN and is the default value for NETGEAR routers, adapters, and switches.
1492
Used in PPPoE environments.
1472
Maximum size to use for pinging. (Larger packets are fragmented.)
1468
Used in some DHCP environments.
Page 38 / 161
Specify Your Internet Settings
38
N600 WiFi Dual Band Gigabit Router
1460
Usable by AOL if you do not send or receive large email attachments, for example.
1436
Used in PPTP environments or with VPN.
1400
Maximum size for AOL DSL.
576
Typical value to connect to dial-up ISPs.
Table 2.
Common MTU sizes
(continued)
MTU
Application
Page 39 / 161
39
4
4.
Optimize Performance
You can set up the router to optimize performance for applications such as Internet gaming,
high-definition video streaming, and VoIP communication. By default, the router uses Wi-Fi
Multimedia Quality of Service (WMM QoS).
This chapter contains the following sections:
•
Optimize Internet Streaming with QoS
•
Add QoS Rules by Service
•
Improve Network Connections with Universal Plug and Play
•
Wi-Fi Multimedia Quality of Service
Page 40 / 161
Optimize Performance
40
N600 WiFi Dual Band Gigabit Router
Optimize Internet Streaming with QoS
You can use Quality of Service (QoS) to assign high priority to Internet streaming,
applications, and services.
Best effort traffic
Internet
High priority traffic
Figure 5. QoS can assign high priority to streaming from the Internet
NETGEAR recommends that you enable this feature only if you use streaming Internet.
When QoS assigns a high priority to streaming video, it also assigns lower priority to the rest
of your Internet traffic. That means other tasks like downloading content from the Internet
take longer.
To turn on Internet access QoS:
1.
Launch a web browser from a computer or wireless device that is connected to the
network.
2.
In the address field of the web browser, enter
or
.
A login screen displays.
3.
Enter the router user name and password.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4.
Select
ADVANCED > Setup > QoS Setup
.
The QoS Setup screen displays.

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