Int 21 Fn B306  - Novell Netware - Renegotiate Security Level              [N]

   AX = B306h
   CX = server connection number (01h-08h)

Return: ???

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

See Also: AX=B300h,AX=B304h,#2561