tag	line	file	source code
IN_CLASSB_NET	82	include/linux/in.h	#define  IN_CLASSB_HOST    (0xffffffff & ~IN_CLASSB_NET)
IN_CLASSB_NET	58	net/ipv4/devinet.c	return(htonl(IN_CLASSB_NET));
IN_CLASSB_NET	335	net/ipv4/route.c	return htonl(IN_CLASSB_NET);