+ u_char if_type; /* ethernet, tokenring, etc */
+ u_char if_addrlen; /* media address length */
+ u_char if_hdrlen; /* media header length */
+ u_char if_index; /* numeric abbreviation for this if */
+/* more statistics here to avoid recompiling netstat */
+ struct timeval if_lastchange; /* last updated */
+ int if_ibytes; /* total number of octets received */
+ int if_obytes; /* total number of octets sent */
+ int if_imcasts; /* packets received via multicast */
+ int if_omcasts; /* packets sent via multicast */
+ int if_iqdrops; /* dropped on input, this interface */
+ int if_noproto; /* destined for unsupported protocol */
+ int if_baudrate; /* linespeed */