165 static bool plumbed = 0;		/* Use existing interface */  variable
177 	{ "plumbed", o_bool, &plumbed, "Use pre-plumbed interface",
226 	if (plumbed) {  in sys_check_options()
500 		if (errno == ENXIO && plumbed)  in sys_init()
506 		if (plumbed)  in sys_init()
522 	if (plumbed) {  in sys_init()
566 	if (plumbed)  in plumb_ipif()
656 	if (!plumbed && (ipmuxid == -1 || (ipfd == -1 && !use_plink)))  in unplumb_ipif()
659 	if (!plumbed && use_plink) {  in unplumb_ipif()
691 	if (plumbed)  in unplumb_ipif()
3140 	if (plumbed)  in plumb_ip6if()
3228 	if (!plumbed && (ip6muxid == -1 || (ip6fd == -1 && !use_plink))) {  in unplumb_ip6if()
3232 	if (!plumbed && use_plink) {  in unplumb_ip6if()
3256 	if (plumbed)  in unplumb_ip6if()