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Annotation of 42BSD/sys/vaxif/if_ether.h, revision 1.1.1.1

1.1       root        1: /*     if_ether.h      4.3     82/12/16        */
                      2: 
                      3: /*
                      4:  * Structure of a 10Mb/s Ethernet header.
                      5:  */
                      6: struct ether_header {
                      7:        u_char  ether_dhost[6];
                      8:        u_char  ether_shost[6];
                      9:        u_short ether_type;
                     10: };
                     11: 
                     12: #define        ETHERPUP_PUPTYPE        0x0400          /* PUP protocol */
                     13: #define        ETHERPUP_IPTYPE         0x0800          /* IP protocol */
                     14: 
                     15: /*
                     16:  * The ETHERPUP_NTRAILER packet types starting at ETHERPUP_TRAIL have
                     17:  * (type-ETHERPUP_TRAIL)*512 bytes of data followed
                     18:  * by a PUP type (as given above) and then the (variable-length) header.
                     19:  */
                     20: #define        ETHERPUP_TRAIL          0x1000          /* Trailer PUP */
                     21: #define        ETHERPUP_NTRAILER       16
                     22: 
                     23: #define        ETHERMTU        1500
                     24: #define        ETHERMIN        (60-14)

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