#ifndef ETHERTYPE_PUP
#define ETHERTYPE_PUP 0x0200
#endif
#ifndef ETHERTYPE_IP
#define ETHERTYPE_IP 0x0800
#endif
#ifndef ETHERTYPE_ARP
#define ETHERTYPE_ARP 0x0806
#endif
#ifndef ETHERTYPE_REVARP
#define ETHERTYPE_REVARP 0x8035
#endif
#ifndef ETHERTYPE_NS
#define ETHERTYPE_NS 0x0600
#endif
#ifndef ETHERTYPE_SPRITE
#define ETHERTYPE_SPRITE 0x0500
#endif
#ifndef ETHERTYPE_TRAIL
#define ETHERTYPE_TRAIL 0x1000
#endif
#ifndef ETHERTYPE_MOPDL
#define ETHERTYPE_MOPDL 0x6001
#endif
#ifndef ETHERTYPE_MOPRC
#define ETHERTYPE_MOPRC 0x6002
#endif
#ifndef ETHERTYPE_DN
#define ETHERTYPE_DN 0x6003
#endif
#ifndef ETHERTYPE_LAT
#define ETHERTYPE_LAT 0x6004
#endif
#ifndef ETHERTYPE_SCA
#define ETHERTYPE_SCA 0x6007
#endif
#ifndef ETHERTYPE_REVARP
#define ETHERTYPE_REVARP 0x8035
#endif
#ifndef ETHERTYPE_LANBRIDGE
#define ETHERTYPE_LANBRIDGE 0x8038
#endif
#ifndef ETHERTYPE_DECDNS
#define ETHERTYPE_DECDNS 0x803c
#endif
#ifndef ETHERTYPE_DECDTS
#define ETHERTYPE_DECDTS 0x803e
#endif
#ifndef ETHERTYPE_VEXP
#define ETHERTYPE_VEXP 0x805b
#endif
#ifndef ETHERTYPE_VPROD
#define ETHERTYPE_VPROD 0x805c
#endif
#ifndef ETHERTYPE_ATALK
#define ETHERTYPE_ATALK 0x809b
#endif
#ifndef ETHERTYPE_AARP
#define ETHERTYPE_AARP 0x80f3
#endif
#ifndef ETHERTYPE_8021Q
#define ETHERTYPE_8021Q 0x8100
#endif
#ifndef ETHERTYPE_IPX
#define ETHERTYPE_IPX 0x8137
#endif
#ifndef ETHERTYPE_IPV6
#define ETHERTYPE_IPV6 0x86dd
#endif
#ifndef ETHERTYPE_MPLS
#define ETHERTYPE_MPLS 0x8847
#endif
#ifndef ETHERTYPE_MPLS_MULTI
#define ETHERTYPE_MPLS_MULTI 0x8848
#endif
#ifndef ETHERTYPE_PPPOED
#define ETHERTYPE_PPPOED 0x8863
#endif
#ifndef ETHERTYPE_PPPOES
#define ETHERTYPE_PPPOES 0x8864
#endif
#ifndef ETHERTYPE_LOOPBACK
#define ETHERTYPE_LOOPBACK 0x9000
#endif
#ifndef ETHERTYPE_8021QINQ
#define ETHERTYPE_8021QINQ 0x9100
#endif