INT 21 - Novell NetWare - CONNECTION SERVICES - GET INTERNET ADDRESS
        AH = E3h subfn 13h
        DS:SI -> request buffer (see below)
        ES:DI -> reply buffer (see below)
Return: AL = status
            00h successful
Note:   this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=16h,AH=EEh"NetWare"

Format of request buffer:
Offset  Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    13h (subfunction "Get Internet Address")
 03h    BYTE    logical connection number (01h-64h)

Format of reply buffer:
Offset  Size    Description
 00h    WORD    (call) 000Ch (length of following results buffer)
 02h  4 BYTEs   network number
 06h  6 BYTEs   physical node address
 0Ch  2 BYTEs   socket number