Technology Notebook

TCP/IP and NBT configuration parameters for Windows XP
PREVENT FRAGMENTATION
set MTU size to the same or lesser than the router along the tracert with the smallest MTU allowed.

Find the smallest MTU allowed in the route by process of elimination using:
ping -l ____ server.domain.com -f

(-l = lower case L and means to use ____ packet size, -f means do not fragment.)

I found:
1413 and greater => "needs fragmented" response
1412 - 1395 => timeout response
1394 and lower => response received.