diff --git a/pmc_common.c b/pmc_common.c
index d92b0cd..447cf99 100644
--- a/pmc_common.c
+++ b/pmc_common.c
@@ -67,6 +67,7 @@ struct pmc *pmc_create(struct config *cfg, enum transport_type transport_type,
 		       int zero_datalen)
 {
 	struct pmc *pmc;
+	struct interface iface;
 
 	pmc = calloc(1, sizeof *pmc);
 	if (!pmc)
@@ -90,7 +91,9 @@ struct pmc *pmc_create(struct config *cfg, enum transport_type transport_type,
 		pr_err("failed to create transport");
 		goto failed;
 	}
-	if (transport_open(pmc->transport, iface_name,
+
+	strncpy(iface.name, iface_name, MAX_IFNAME_SIZE);
+	if (transport_open(pmc->transport, &iface,
 			   &pmc->fdarray, TS_SOFTWARE)) {
 		pr_err("failed to open transport");
 		goto failed;
diff --git a/port.c b/port.c
index 615c800..1e3f474 100644
--- a/port.c
+++ b/port.c
@@ -1504,7 +1504,7 @@ static int port_initialize(struct port *p)
 			goto no_timers;
 		}
 	}
-	if (transport_open(p->trp, p->name, &p->fda, p->timestamping))
+	if (transport_open(p->trp, p->iface, &p->fda, p->timestamping))
 		goto no_tropen;
 
 	for (i = 0; i < N_TIMER_FDS; i++) {
@@ -1547,7 +1547,7 @@ static int port_renew_transport(struct port *p)
 	}
 	transport_close(p->trp, &p->fda);
 	port_clear_fda(p, FD_ANNOUNCE_TIMER);
-	res = transport_open(p->trp, p->name, &p->fda, p->timestamping);
+	res = transport_open(p->trp, p->iface, &p->fda, p->timestamping);
 	/* Need to call clock_fda_changed even if transport_open failed in
 	 * order to update clock to the now closed descriptors. */
 	clock_fda_changed(p->clock);
diff --git a/raw.c b/raw.c
index 73e45b4..8b7bcf1 100644
--- a/raw.c
+++ b/raw.c
@@ -198,15 +198,16 @@ static void addr_to_mac(void *mac, struct address *addr)
 	memcpy(mac, &addr->sll.sll_addr, MAC_LEN);
 }
 
-static int raw_open(struct transport *t, const char *name,
+static int raw_open(struct transport *t, struct interface *iface,
 		    struct fdarray *fda, enum timestamp_type ts_type)
 {
 	struct raw *raw = container_of(t, struct raw, t);
 	unsigned char ptp_dst_mac[MAC_LEN];
 	unsigned char p2p_dst_mac[MAC_LEN];
 	int efd, gfd;
-	char *str;
+	char *str, *name;
 
+	name = iface->ts_label;
 	str = config_get_string(t->cfg, name, "ptp_dst_mac");
 	if (str2mac(str, ptp_dst_mac)) {
 		pr_err("invalid ptp_dst_mac %s", str);
diff --git a/transport.c b/transport.c
index d24c05b..3541394 100644
--- a/transport.c
+++ b/transport.c
@@ -31,10 +31,10 @@ int transport_close(struct transport *t, struct fdarray *fda)
 	return t->close(t, fda);
 }
 
-int transport_open(struct transport *t, const char *name,
+int transport_open(struct transport *t, struct interface *iface,
 		   struct fdarray *fda, enum timestamp_type tt)
 {
-	return t->open(t, name, fda, tt);
+	return t->open(t, iface, fda, tt);
 }
 
 int transport_recv(struct transport *t, int fd, struct ptp_message *msg)
diff --git a/transport.h b/transport.h
index 5d6ba98..15616bb 100644
--- a/transport.h
+++ b/transport.h
@@ -27,6 +27,7 @@
 #include "msg.h"
 
 struct config;
+struct interface;
 
 /* Values from networkProtocol enumeration 7.4.1 Table 3 */
 enum transport_type {
@@ -54,7 +55,7 @@ struct transport;
 
 int transport_close(struct transport *t, struct fdarray *fda);
 
-int transport_open(struct transport *t, const char *name,
+int transport_open(struct transport *t, struct interface *iface,
 		   struct fdarray *fda, enum timestamp_type tt);
 
 int transport_recv(struct transport *t, int fd, struct ptp_message *msg);
diff --git a/transport_private.h b/transport_private.h
index b54f32a..7530896 100644
--- a/transport_private.h
+++ b/transport_private.h
@@ -32,8 +32,8 @@ struct transport {
 
 	int (*close)(struct transport *t, struct fdarray *fda);
 
-	int (*open)(struct transport *t, const char *name, struct fdarray *fda,
-		    enum timestamp_type tt);
+	int (*open)(struct transport *t, struct interface *iface,
+		    struct fdarray *fda, enum timestamp_type tt);
 
 	int (*recv)(struct transport *t, int fd, void *buf, int buflen,
 		    struct address *addr, struct hw_timestamp *hwts);
diff --git a/udp.c b/udp.c
index 530a2ee..05c2ba0 100644
--- a/udp.c
+++ b/udp.c
@@ -152,12 +152,13 @@ enum { MC_PRIMARY, MC_PDELAY };
 
 static struct in_addr mcast_addr[2];
 
-static int udp_open(struct transport *t, const char *name, struct fdarray *fda,
-		    enum timestamp_type ts_type)
+static int udp_open(struct transport *t, struct interface *iface,
+		    struct fdarray *fda, enum timestamp_type ts_type)
 {
 	struct udp *udp = container_of(t, struct udp, t);
 	uint8_t event_dscp, general_dscp;
 	int efd, gfd, ttl;
+	char *name = iface->name;
 
 	ttl = config_get_int(t->cfg, name, "udp_ttl");
 	udp->mac.len = 0;
@@ -180,7 +181,7 @@ static int udp_open(struct transport *t, const char *name, struct fdarray *fda,
 	if (gfd < 0)
 		goto no_general;
 
-	if (sk_timestamping_init(efd, name, ts_type, TRANS_UDP_IPV4))
+	if (sk_timestamping_init(efd, iface->ts_label, ts_type, TRANS_UDP_IPV4))
 		goto no_timestamping;
 
 	if (sk_general_init(gfd))
diff --git a/udp6.c b/udp6.c
index 89e27bf..7551e3f 100644
--- a/udp6.c
+++ b/udp6.c
@@ -160,12 +160,13 @@ enum { MC_PRIMARY, MC_PDELAY };
 
 static struct in6_addr mc6_addr[2];
 
-static int udp6_open(struct transport *t, const char *name, struct fdarray *fda,
-		    enum timestamp_type ts_type)
+static int udp6_open(struct transport *t, struct interface *iface,
+		     struct fdarray *fda, enum timestamp_type ts_type)
 {
 	struct udp6 *udp6 = container_of(t, struct udp6, t);
 	uint8_t event_dscp, general_dscp;
 	int efd, gfd, hop_limit;
+	char *name = iface->name;
 
 	hop_limit = config_get_int(t->cfg, name, "udp_ttl");
 	udp6->mac.len = 0;
@@ -190,7 +191,7 @@ static int udp6_open(struct transport *t, const char *name, struct fdarray *fda,
 	if (gfd < 0)
 		goto no_general;
 
-	if (sk_timestamping_init(efd, name, ts_type, TRANS_UDP_IPV6))
+	if (sk_timestamping_init(efd, iface->ts_label, ts_type, TRANS_UDP_IPV6))
 		goto no_timestamping;
 
 	if (sk_general_init(gfd))
diff --git a/uds.c b/uds.c
index d5e8f50..7e11f63 100644
--- a/uds.c
+++ b/uds.c
@@ -52,13 +52,14 @@ static int uds_close(struct transport *t, struct fdarray *fda)
 	return 0;
 }
 
-static int uds_open(struct transport *t, const char *name, struct fdarray *fda,
+static int uds_open(struct transport *t, struct interface *iface, struct fdarray *fda,
 		    enum timestamp_type tt)
 {
 	int fd, err;
 	struct sockaddr_un sa;
 	struct uds *uds = container_of(t, struct uds, t);
 	char *uds_path = config_get_string(t->cfg, NULL, "uds_address");
+	char *name = iface->name;
 
 	fd = socket(AF_LOCAL, SOCK_DGRAM, 0);
 	if (fd < 0) {