1190207Srpaulo/* @(#) $Header: /tcpdump/master/tcpdump/igrp.h,v 1.6 2002-12-11 07:13:52 guy Exp $ (LBL) */ 217680Spst/* Cisco IGRP definitions */ 317680Spst 417680Spst/* IGRP Header */ 517680Spst 617680Spststruct igrphdr { 775115Sfenner u_int8_t ig_vop; /* protocol version number / opcode */ 875115Sfenner#define IGRP_V(x) (((x) & 0xf0) >> 4) 975115Sfenner#define IGRP_OP(x) ((x) & 0x0f) 1075115Sfenner u_int8_t ig_ed; /* edition number */ 1175115Sfenner u_int16_t ig_as; /* autonomous system number */ 1275115Sfenner u_int16_t ig_ni; /* number of subnet in local net */ 1375115Sfenner u_int16_t ig_ns; /* number of networks in AS */ 1475115Sfenner u_int16_t ig_nx; /* number of networks ouside AS */ 1575115Sfenner u_int16_t ig_sum; /* checksum of IGRP header & data */ 1617680Spst}; 1717680Spst 1817680Spst#define IGRP_UPDATE 1 1917680Spst#define IGRP_REQUEST 2 2017680Spst 2117680Spst/* IGRP routing entry */ 2217680Spst 2317680Spststruct igrprte { 2475115Sfenner u_int8_t igr_net[3]; /* 3 significant octets of IP address */ 2575115Sfenner u_int8_t igr_dly[3]; /* delay in tens of microseconds */ 2675115Sfenner u_int8_t igr_bw[3]; /* bandwidth in units of 1 kb/s */ 2775115Sfenner u_int8_t igr_mtu[2]; /* MTU in octets */ 2875115Sfenner u_int8_t igr_rel; /* percent packets successfully tx/rx */ 2975115Sfenner u_int8_t igr_ld; /* percent of channel occupied */ 3075115Sfenner u_int8_t igr_hct; /* hop count */ 3117680Spst}; 3217680Spst 3317680Spst#define IGRP_RTE_SIZE 14 /* don't believe sizeof ! */ 34