inet_ntop(AF_INET, &inp->ipi_spec_dst, buf, 256);
fprintf(stderr, " dst %s\n", buf);
inet_ntop(AF_INET, &inp->ipi_addr, buf, 256);
inet_ntop(AF_INET, &inp->ipi_spec_dst, buf, 256);
fprintf(stderr, " dst %s\n", buf);
inet_ntop(AF_INET, &inp->ipi_addr, buf, 256);