Int 21 Fn B300  U - Novell Netware - Check Lip/packet Signing/ipx Checksu  [N]

   AX = B300h

Return: AX = 0000h if supported???

Note:  this function appeared with the packet signing/Large Internet Packets/
     IPX Checksum-aware NetWare shells

See Also: AX=B301h,AX=B302h