Int 7A  U - Novell Netware - Ipx Driver - Internal - Initialize Network A  [N]

   BX = 000Ch
   CX:DX = global network address (see INT 7A/BX=0002h)
   ES:DI -> "OSINCRITICALSECTION" flag
   DS:SI -> current mode for socket

Note:  the address cannot be changed once it has been initialized