Netgear WNR2200 N300 Wireless Router with USB WNR2200 User Manual - Page 102

Quality of Service (QoS), MTU Size, Apply - vpn setup

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N300 Wireless Router with USB WNR2200 User Manual • You used a program to optimize MTU for performance reasons, and now you have connectivity or performance problems. Note: An incorrect MTU setting can cause Internet communication problems such as the inability to access certain Web sites, frames within Web sites, secure login pages, or FTP or POP servers. 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. Table 6-2 describes common MTU sizes and applications. Table 6-2. Common MTU Sizes MTU 1500 1492 1472 1468 1460 1436 1400 576 Application The largest Ethernet packet size and the default value. This is the typical setting for nonPPPoE, non-VPN connections, and is the default value for NETGEAR routers, adapters, and switches. Used in PPPoE environments. Maximum size to use for pinging. (Larger packets are fragmented.) Used in some DHCP environments. Usable by AOL if you don't have large e-mail attachments, for example. Used in PPTP environments or with VPN. Maximum size for AOL DSL. Typical value to connect to dial-up ISPs. To change the MTU size: 1. In the main menu, under Advanced, select WAN Setup. 2. In the MTU Size field, enter a new size between 64 and 1500. 3. Click Apply to save the new configuration. Quality of Service (QoS) QoS is an advanced feature that can be used to prioritize some types of traffic ahead of others. The WNR2200 router can provide QoS prioritization over the wireless link and on the Internet connection. To configure QoS, use the QoS Setup screen. Fine-Tuning Your Network 6-7 v1.0, September 2010

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N300 Wireless Router with USB WNR2200 User Manual
Fine-Tuning Your Network
6-7
v1.0, September 2010
•
You used a program to optimize MTU for performance reasons, and now you have
connectivity or performance problems.
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.
Table 6-2
describes common MTU sizes and applications.
To change the MTU size:
1.
In the main menu, under Advanced, select WAN Setup.
2.
In the
MTU Size
field, enter a new size between 64 and 1500.
3.
Click
Apply
to save the new configuration.
Quality of Service (QoS)
QoS is an advanced feature that can be used to prioritize some types of traffic ahead of others. The
WNR2200 router can provide QoS prioritization over the wireless link and on the Internet
connection. To configure QoS, use the QoS Setup screen.
Note:
An incorrect MTU setting can cause Internet communication problems such as the
inability to access certain Web sites, frames within Web sites, secure login pages,
or FTP or POP servers.
Table 6-2.
Common MTU Sizes
MTU
Application
1500
The largest Ethernet packet size and the default value. This is the typical setting for non-
PPPoE, non-VPN connections, 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.
1460
Usable by AOL if you don't have large e-mail 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.