C9 LE Server ATM Address.
The LAN Emulation Server which this client will use
the next time it is started in manual configuration
mode.
When lecConfigMode is 'automatic', there is no need
to set this address, and no advantage to doing so.
The client will use the LECS to find a LES, putting
the auto-configured address in lecActualLesAtmAddress
while leaving lecConfigLesAtmAddress alone.