Since Win2k sees my DSL Modem as an ATM connection, I believe my MTU is at 9180. Not SURE, though.
In the registry,
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Interfaces\{1D8E7004-5DE9-43BF-9F87-46B5DC6664D4}
MTU = 9180.
If my MTU is set to 9180, this is a bit high, no?