pf_rand_addr
rpool->counter.addr32[0] = pf_rand_addr(
rpool->counter.addr32[3] = pf_rand_addr(
rpool->counter.addr32[2] = pf_rand_addr(
rpool->counter.addr32[1] = pf_rand_addr(
rpool->counter.addr32[0] = pf_rand_addr(