Netgear WNR612v2 WNR612v2 User Manual (PDF) - Page 64

WAN Setup, MTU Size, Apply, To change the MTU size

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Wireless-N 150 Router WNR612v2 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 size to 1400. If you are willing to experiment, you can gradually reduce the MTU size from the maximum value of 1500 until the problem goes away. The following table describes common MTU sizes and applications. Table 6. 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 non-PPPoE, 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 do not 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. 64 | Chapter 6: Fine-Tuning Your Network

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Chapter 6:
Fine-Tuning Your Network
Wireless-N 150 Router WNR612v2 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 size to 1400. If you
are willing to experiment, you can gradually reduce the MTU size from the maximum value of
1500 until the problem goes away. The following table describes common MTU sizes and
applications.
Table 6.
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 do not 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.
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.