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Annotation of 42BSD/sys/vaxif/if_en.h, revision 1.1

1.1     ! root        1: /*     if_en.h 6.1     83/07/29        */
        !             2: 
        !             3: /*
        !             4:  * Structure of a Ethernet header.
        !             5:  */
        !             6: struct en_header {
        !             7:        u_char  en_shost;
        !             8:        u_char  en_dhost;
        !             9:        u_short en_type;
        !            10: };
        !            11: 
        !            12: #define        ENTYPE_PUP      0x0200          /* PUP protocol */
        !            13: #define        ENTYPE_IP       0x0201          /* IP protocol */
        !            14: 
        !            15: /*
        !            16:  * The ENTYPE_NTRAILER packet types starting at
        !            17:  * ENTYPE_TRAIL have (type-ENTYPE_TRAIL)*512 bytes
        !            18:  * of data followed by an Ethernet type (as given above)
        !            19:  * and then the (variable-length) header.
        !            20:  */
        !            21: #define        ENTYPE_TRAIL    0x1000          /* Trailer type */
        !            22: #define        ENTYPE_NTRAILER 16

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