AARPTAB_BSIZ
aat = &aarptab[AARPTAB_HASH(*addr) * AARPTAB_BSIZ];
for (n = 0; n < AARPTAB_BSIZ; n++, aat++) {
#define AARPTAB_SIZE (AARPTAB_BSIZ * AARPTAB_NB)
(aat) = &aarptab[AARPTAB_HASH(addr) * AARPTAB_BSIZ]; \
for (n = 0; n < AARPTAB_BSIZ; n++, (aat)++) { \
if (n >= AARPTAB_BSIZ) { \