Format of BOOTP data (stored in parameter block):
Offset	Size	Description	)
 18h  4 BYTEs	???
 1Ch	BYTE	??? (01h)
 1Dh	BYTE	address length (04h)
 1Eh  4 BYTEs	subnet mask
 22h	BYTE	??? (03h)
 23h	BYTE	??? (04h)
 24h  4 BYTEs	IP address of nearest router
 28h	BYTE	??? (06h)
 29h	BYTE	length of following data (08h)
 2Ah  4 BYTEs	IP address of nameserver 1
 2Eh  4 BYTEs	IP address of nameserver 2
 32h	BYTE	??? (0Ch)
 33h	BYTE	length of local name
 34h  N BYTEs	local host name
	BYTE	FFh (end marker)
SeeAlso: #02904,#02902