myip_ifp          518 net/if.c       	myip_ifp = NULL;
myip_ifp           99 netinet/if_ether.c struct ifnet *myip_ifp = NULL;
myip_ifp          894 netinet/if_ether.c 	if (ifp != myip_ifp) /* !same interface */
myip_ifp          968 netinet/if_ether.c 	myip_ifp = ifp;
myip_ifp          279 netinet/if_ether.h extern struct ifnet *myip_ifp;