Intel Extensible Firmware Interface Specification page 411

// Change the UNDI operational state from Initialized to Started.
#define PXE_OPCODE_SHUTDOWN
// Read & change state of external interrupt enables.
#define PXE_OPCODE_INTERRUPT_ENABLES
// Read & change state of packet receive filters.
#define PXE_OPCODE_RECEIVE_FILTERS
// Read & change station MAC address.
#define PXE_OPCODE_STATION_ADDRESS
// Read traffic statistics.
#define PXE_OPCODE_STATISTICS
// Convert multicast IP address to multicast MAC address.
#define PXE_OPCODE_MCAST_IP_TO_MAC
// Read or change non-volatile storage on the NIC.
#define PXE_OPCODE_NVDATA
// Get & clear interrupt status.
#define PXE_OPCODE_GET_STATUS
// Fill media header in packet for transmit.
#define PXE_OPCODE_FILL_HEADER
// Transmit packet(s).
#define PXE_OPCODE_TRANSMIT
// Receive packet.
#define PXE_OPCODE_RECEIVE
// Last valid PXE UNDI OpCode number.
#define PXE_OPCODE_LAST_VALID
Version 1.02
32/64-bit UNDI Specification
0x0007
0x0008
0x0009
0x000A
0x000B
0x000C
0x000D
0x000E
0x000F
0x0010
0x0011
0x0011
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