diff options
Diffstat (limited to 'contrib/tcpdump/igrp.h')
| -rw-r--r-- | contrib/tcpdump/igrp.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/contrib/tcpdump/igrp.h b/contrib/tcpdump/igrp.h new file mode 100644 index 000000000000..cf4c1a44264f --- /dev/null +++ b/contrib/tcpdump/igrp.h @@ -0,0 +1,36 @@ +/* Cisco IGRP definitions */ + +/* IGRP Header */ + +struct igrphdr { +#if BYTE_ORDER == LITTLE_ENDIAN + u_char ig_op:4; /* opcode */ + u_char ig_v:4; /* protocol version number */ +#else + u_char ig_v:4; /* protocol version number */ + u_char ig_op:4; /* opcode */ +#endif + u_char ig_ed; /* edition number */ + u_short ig_as; /* autonomous system number */ + u_short ig_ni; /* number of subnet in local net */ + u_short ig_ns; /* number of networks in AS */ + u_short ig_nx; /* number of networks ouside AS */ + u_short ig_sum; /* checksum of IGRP header & data */ +}; + +#define IGRP_UPDATE 1 +#define IGRP_REQUEST 2 + +/* IGRP routing entry */ + +struct igrprte { + u_char igr_net[3]; /* 3 significant octets of IP address */ + u_char igr_dly[3]; /* delay in tens of microseconds */ + u_char igr_bw[3]; /* bandwidth in units of 1 kb/s */ + u_char igr_mtu[2]; /* MTU in octets */ + u_char igr_rel; /* percent packets successfully tx/rx */ + u_char igr_ld; /* percent of channel occupied */ + u_char igr_hct; /* hop count */ +}; + +#define IGRP_RTE_SIZE 14 /* don't believe sizeof ! */ |