INT 21 - Novell NetWare - GET NETWORK SERIAL NUMBER                             
	AX = F217h subfn 12h
	CX = length of request packet in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request packet (see #01909 at AH=E3h/SF=12h)
	ES:DI -> reply buffer (see #02167)
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AH=E3h/SF=12h,AX=F217h/SF=0Ch


Format of NetWare "Get Network Serial Number" reply packet:
Offset	Size	Description	(Table 02167)
 00h   4 BYTEs	(big-endian) NetWare server serial number
 04h   2 BYTEs	(big-endian) NetWare application serial number
SeeAlso: #01909 at AH=E3h/SF=12h