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Packet size, often referred to as MTU (Maximum Transmission Unit) is the greatest amount of data that can be transferred in one physical frame on the network. For Ethernet, the MTU is 1500 bytes, for PPPoE 1492, dial-up connections often use 576.

Although many say an MTU of 1500 helps, I suggest using 576. If you're still wanting to make your MTU 1500, read the following steps.

1) Download Dr.TCP and change your MTU to 1500.
2) Click save then reboot your computer.
3) Dial-up like normal, then press Start>Run and type command.
4) In the command box, type
ping -f -l 1472 www.yourispswebsite.com
-l is a lowercase L, not a bar |

Simply change it back to 576 if it gives an error of "Packet needs to be fragmented but DF set." That error is telling you that your ISP doesn't support that MTU.


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by redxii See Profile edited by TravisB See Profile
last modified: 2006-07-24 23:53:21