diff options
Diffstat (limited to 'contrib/tcpdump/igrp.h')
| -rw-r--r-- | contrib/tcpdump/igrp.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/contrib/tcpdump/igrp.h b/contrib/tcpdump/igrp.h new file mode 100644 index 0000000..b5f133b --- /dev/null +++ b/contrib/tcpdump/igrp.h @@ -0,0 +1,33 @@ +/* @(#) $Header: /tcpdump/master/tcpdump/igrp.h,v 1.6 2002-12-11 07:13:52 guy Exp $ (LBL) */ +/* Cisco IGRP definitions */ + +/* IGRP Header */ + +struct igrphdr { + u_int8_t ig_vop; /* protocol version number / opcode */ +#define IGRP_V(x) (((x) & 0xf0) >> 4) +#define IGRP_OP(x) ((x) & 0x0f) + u_int8_t ig_ed; /* edition number */ + u_int16_t ig_as; /* autonomous system number */ + u_int16_t ig_ni; /* number of subnet in local net */ + u_int16_t ig_ns; /* number of networks in AS */ + u_int16_t ig_nx; /* number of networks ouside AS */ + u_int16_t ig_sum; /* checksum of IGRP header & data */ +}; + +#define IGRP_UPDATE 1 +#define IGRP_REQUEST 2 + +/* IGRP routing entry */ + +struct igrprte { + u_int8_t igr_net[3]; /* 3 significant octets of IP address */ + u_int8_t igr_dly[3]; /* delay in tens of microseconds */ + u_int8_t igr_bw[3]; /* bandwidth in units of 1 kb/s */ + u_int8_t igr_mtu[2]; /* MTU in octets */ + u_int8_t igr_rel; /* percent packets successfully tx/rx */ + u_int8_t igr_ld; /* percent of channel occupied */ + u_int8_t igr_hct; /* hop count */ +}; + +#define IGRP_RTE_SIZE 14 /* don't believe sizeof ! */ |
