eigrp_if_lookup_id
ei = eigrp_if_lookup_id(imsg.hdr.peerid);
ei = eigrp_if_lookup_id(imsg.hdr.peerid);
struct eigrp_iface *eigrp_if_lookup_id(uint32_t);
while (eigrp_if_lookup_id(ifacecnt++))
nbr->ei = eigrp_if_lookup_id(nbr->ifaceid);