NETGEAR DGND3300 user manual Universal Plug and Play, Common MTU Sizes, Application

RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual

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 6-2describes common MTU sizes and applications.

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.

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.

Universal Plug and Play

Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, to access the network and connect to other devices as needed. UPnP devices can automatically discover the services from other registered UPnP devices on the network.

Note: If you use applications such as multiplayer gaming, peer-to-peer connections, real- time communications such as instant messaging, or remote assistance (a feature in

Windows XP), you should enable UPnP.

Fine-Tuning Your Network 6-7

v1.0, March 2009