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33 * @(#)idp.h 8.1 (Berkeley) 6/10/93
41 * Definitions for NS(tm) Internet Datagram Protocol
44 u_short idp_sum; /* Checksum */
45 u_short idp_len; /* Length, in bytes, including header */
46 u_char idp_tc; /* Transport Control (i.e. hop count) */
47 u_char idp_pt; /* Packet Type (i.e. level 2 protocol) */
48 struct ns_addr idp_dna; /* Destination Network Address */
49 struct ns_addr idp_sna; /* Source Network Address */