diff --git a/include/libgtpnl/gtp.h b/include/libgtpnl/gtp.h
index a6cd8e2..9b0bcf4 100644
--- a/include/libgtpnl/gtp.h
+++ b/include/libgtpnl/gtp.h
@@ -13,6 +13,8 @@ void gtp_tunnel_set_ifns(struct gtp_tunnel *t, int ifns);
 void gtp_tunnel_set_ifidx(struct gtp_tunnel *t, uint32_t ifidx);
 void gtp_tunnel_set_ms_ip4(struct gtp_tunnel *t, struct in_addr *ms_addr);
 void gtp_tunnel_set_sgsn_ip4(struct gtp_tunnel *t, struct in_addr *sgsn_addr);
+void gtp_tunnel_set_ms_ip6(struct gtp_tunnel *t, const struct in6_addr *ms_addr);
+void gtp_tunnel_set_sgsn_ip6(struct gtp_tunnel *t, const struct in6_addr *sgsn_addr);
 void gtp_tunnel_set_version(struct gtp_tunnel *t, uint32_t version);
 void gtp_tunnel_set_tid(struct gtp_tunnel *t, uint64_t tid);
 void gtp_tunnel_set_i_tei(struct gtp_tunnel *t, uint32_t i_tei);
diff --git a/include/linux/gtp.h b/include/linux/gtp.h
index 3dcdb9e..40f5388 100644
--- a/include/linux/gtp.h
+++ b/include/linux/gtp.h
@@ -31,6 +31,9 @@ enum gtp_attrs {
 	GTPA_I_TEI,	/* for GTPv1 only */
 	GTPA_O_TEI,	/* for GTPv1 only */
 	GTPA_PAD,
+	GTPA_PEER_ADDR6,
+	GTPA_MS_ADDR6,
+	GTPA_FAMILY,
 	__GTPA_MAX,
 };
 #define GTPA_MAX (__GTPA_MAX - 1)
diff --git a/src/gtp-genl.c b/src/gtp-genl.c
index 82ef8ab..c55fbd9 100644
--- a/src/gtp-genl.c
+++ b/src/gtp-genl.c
@@ -44,14 +44,30 @@
 
 static void gtp_build_payload(struct nlmsghdr *nlh, struct gtp_tunnel *t)
 {
+	mnl_attr_put_u8(nlh, GTPA_FAMILY, t->ms_addr.family);
 	mnl_attr_put_u32(nlh, GTPA_VERSION, t->gtp_version);
 	if (t->ifns >= 0)
 		mnl_attr_put_u32(nlh, GTPA_NET_NS_FD, t->ifns);
 	mnl_attr_put_u32(nlh, GTPA_LINK, t->ifidx);
-	if (t->sgsn_addr.ip4.s_addr)
-		mnl_attr_put_u32(nlh, GTPA_PEER_ADDRESS, t->sgsn_addr.ip4.s_addr);
-	if (t->ms_addr.ip4.s_addr)
+
+	switch (t->ms_addr.family) {
+	case AF_INET:
 		mnl_attr_put_u32(nlh, GTPA_MS_ADDRESS, t->ms_addr.ip4.s_addr);
+		break;
+	case AF_INET6:
+		mnl_attr_put(nlh, GTPA_MS_ADDR6, sizeof(t->ms_addr.ip6), &t->ms_addr.ip6);
+		break;
+	}
+
+	switch (t->sgsn_addr.family) {
+	case AF_INET:
+		mnl_attr_put_u32(nlh, GTPA_PEER_ADDRESS, t->sgsn_addr.ip4.s_addr);
+		break;
+	case AF_INET6:
+		mnl_attr_put(nlh, GTPA_PEER_ADDR6, sizeof(t->sgsn_addr.ip6), &t->sgsn_addr.ip6);
+		break;
+	}
+
 	if (t->gtp_version == GTP_V0) {
 		mnl_attr_put_u64(nlh, GTPA_TID, t->u.v0.tid);
 		mnl_attr_put_u16(nlh, GTPA_FLOW, t->u.v0.flowid);
@@ -129,6 +145,12 @@ static int genl_gtp_validate_cb(const struct nlattr *attr, void *data)
 		return MNL_CB_OK;
 
 	switch(type) {
+	case GTPA_FAMILY:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0) {
+			perror("mnl_attr_validate");
+			return MNL_CB_ERROR;
+		}
+		break;
 	case GTPA_TID:
 		if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0) {
 			perror("mnl_attr_validate");
@@ -145,6 +167,14 @@ static int genl_gtp_validate_cb(const struct nlattr *attr, void *data)
 			return MNL_CB_ERROR;
 		}
 		break;
+	case GTPA_PEER_ADDR6:
+	case GTPA_MS_ADDR6:
+		if (mnl_attr_validate2(attr, MNL_TYPE_BINARY,
+				       sizeof(struct in6_addr)) < 0) {
+			perror("mnl_attr_validate");
+			return MNL_CB_ERROR;
+		}
+		break;
 	default:
 		break;
 	}
@@ -160,36 +190,70 @@ static int genl_gtp_attr_cb(const struct nlmsghdr *nlh, void *data)
 	struct genlmsghdr *genl;
 
 	mnl_attr_parse(nlh, sizeof(*genl), genl_gtp_validate_cb, tb);
+
 	if (tb[GTPA_TID])
 		pdp.u.v0.tid = mnl_attr_get_u64(tb[GTPA_TID]);
 	if (tb[GTPA_I_TEI])
 		pdp.u.v1.i_tei = mnl_attr_get_u32(tb[GTPA_I_TEI]);
 	if (tb[GTPA_O_TEI])
 		pdp.u.v1.o_tei = mnl_attr_get_u32(tb[GTPA_O_TEI]);
+
 	if (tb[GTPA_PEER_ADDRESS]) {
 		pdp.sgsn_addr.family = AF_INET;
-		pdp.sgsn_addr.ip4.s_addr =
-			mnl_attr_get_u32(tb[GTPA_PEER_ADDRESS]);
+		pdp.sgsn_addr.ip4.s_addr = mnl_attr_get_u32(tb[GTPA_PEER_ADDRESS]);
+	} else if (tb[GTPA_PEER_ADDR6]) {
+		pdp.sgsn_addr.family = AF_INET6;
+		memcpy(&pdp.sgsn_addr.ip6, mnl_attr_get_payload(tb[GTPA_PEER_ADDR6]),
+		       sizeof(struct in6_addr));
+	} else {
+		fprintf(stderr, "sgsn_addr: no IPv4 nor IPv6 set\n");
+		return MNL_CB_ERROR;
 	}
+
 	if (tb[GTPA_MS_ADDRESS]) {
 		pdp.ms_addr.family = AF_INET;
 		pdp.ms_addr.ip4.s_addr = mnl_attr_get_u32(tb[GTPA_MS_ADDRESS]);
-	}
-	if (tb[GTPA_VERSION]) {
-		pdp.version = mnl_attr_get_u32(tb[GTPA_VERSION]);
+	} else if (tb[GTPA_MS_ADDR6]) {
+		pdp.ms_addr.family = AF_INET6;
+		memcpy(&pdp.ms_addr.ip6, mnl_attr_get_payload(tb[GTPA_MS_ADDR6]), sizeof(struct in6_addr));
+	} else {
+		fprintf(stderr, "ms_addr: no IPv4 nor IPv6 set\n");
+		return MNL_CB_ERROR;
 	}
 
-	printf("version %u ", pdp.version);
-	if (pdp.version == GTP_V0) {
-		inet_ntop(AF_INET, &pdp.ms_addr.ip4, buf, sizeof(buf));
-		printf("tid %"PRIu64" ms_addr %s ",
-		       pdp.u.v0.tid, buf);
-	} else if (pdp.version == GTP_V1) {
-		inet_ntop(AF_INET, &pdp.ms_addr.ip4, buf, sizeof(buf));
-		printf("tei %u/%u ms_addr %s ", pdp.u.v1.i_tei,
-		       pdp.u.v1.o_tei, buf);
+	if (tb[GTPA_FAMILY] && mnl_attr_get_u32(tb[GTPA_FAMILY]) != pdp.ms_addr.family) {
+		fprintf(stderr, "ms_addr family does not match GTPA_FAMILY\n");
+		return MNL_CB_ERROR;
+	}
+
+	if (tb[GTPA_VERSION])
+		pdp.version = mnl_attr_get_u32(tb[GTPA_VERSION]);
+
+	printf("version %u ", pdp.version);
+
+	if (pdp.version == GTP_V0)
+		printf("tid %"PRIu64" ", pdp.u.v0.tid);
+	else if (pdp.version == GTP_V1)
+		printf("tei %u/%u ", pdp.u.v1.i_tei, pdp.u.v1.o_tei);
+
+	switch (pdp.ms_addr.family) {
+	case AF_INET:
+		inet_ntop(AF_INET, &pdp.ms_addr.ip4, buf, sizeof(buf));
+		break;
+	case AF_INET6:
+		inet_ntop(AF_INET6, &pdp.ms_addr.ip6, buf, sizeof(buf));
+		break;
+	}
+	printf("ms_addr %s ", buf);
+
+	switch (pdp.sgsn_addr.family) {
+	case AF_INET:
+		inet_ntop(AF_INET, &pdp.sgsn_addr.ip4, buf, sizeof(buf));
+		break;
+	case AF_INET6:
+		inet_ntop(AF_INET6, &pdp.sgsn_addr.ip6, buf, sizeof(buf));
+		break;
 	}
-	inet_ntop(AF_INET, &pdp.sgsn_addr.ip4, buf, sizeof(buf));
 	printf("sgsn_addr %s\n", buf);
 
 	return MNL_CB_OK;
diff --git a/src/gtp.c b/src/gtp.c
index 4eadc29..657eb7a 100644
--- a/src/gtp.c
+++ b/src/gtp.c
@@ -72,6 +72,20 @@ void gtp_tunnel_set_sgsn_ip4(struct gtp_tunnel *t, struct in_addr *sgsn_addr)
 }
 EXPORT_SYMBOL(gtp_tunnel_set_sgsn_ip4);
 
+void gtp_tunnel_set_ms_ip6(struct gtp_tunnel *t, const struct in6_addr *ms_addr)
+{
+	t->ms_addr.family = AF_INET6;
+	t->ms_addr.ip6 = *ms_addr;
+}
+EXPORT_SYMBOL(gtp_tunnel_set_ms_ip6);
+
+void gtp_tunnel_set_sgsn_ip6(struct gtp_tunnel *t, const struct in6_addr *sgsn_addr)
+{
+	t->sgsn_addr.family = AF_INET6;
+	t->sgsn_addr.ip6 = *sgsn_addr;
+}
+EXPORT_SYMBOL(gtp_tunnel_set_sgsn_ip6);
+
 void gtp_tunnel_set_version(struct gtp_tunnel *t, uint32_t version)
 {
 	t->gtp_version = version;
diff --git a/src/libgtpnl.map b/src/libgtpnl.map
index 804f8b3..1237e69 100644
--- a/src/libgtpnl.map
+++ b/src/libgtpnl.map
@@ -38,3 +38,8 @@ global:
 
 local: *;
 };
+
+LIBGTPNL_1.1 {
+  gtp_tunnel_set_ms_ip6;
+  gtp_tunnel_set_sgsn_ip6;
+} LIBGTPNL_1.0;
diff --git a/tools/gtp-tunnel.c b/tools/gtp-tunnel.c
index 1868097..b29e386 100644
--- a/tools/gtp-tunnel.c
+++ b/tools/gtp-tunnel.c
@@ -49,12 +49,32 @@ static void add_usage(const char *name)
 	       name);
 }
 
+static void set_addr(const char *addr, bool is_ms, struct gtp_tunnel *t)
+{
+	struct in_addr ip4;
+	struct in6_addr ip6;
+
+	if (inet_pton(AF_INET, addr, &ip4) == 1) {
+		if (is_ms)
+			return gtp_tunnel_set_ms_ip4(t, &ip4);
+		return gtp_tunnel_set_sgsn_ip4(t, &ip4);
+	}
+
+	if (inet_pton(AF_INET6, addr, &ip6) == 1) {
+		if (is_ms)
+			return gtp_tunnel_set_ms_ip6(t, &ip6);
+		return gtp_tunnel_set_sgsn_ip6(t, &ip6);
+	}
+
+	fprintf(stderr, "bad address: %s\n", addr);
+	exit(EXIT_FAILURE);
+}
+
 static int
 add_tunnel(int argc, char *argv[], int genl_id, struct mnl_socket *nl)
 {
 	struct gtp_tunnel *t;
 	uint32_t gtp_ifidx;
-	struct in_addr ms, sgsn;
 	uint32_t gtp_version;
 	int optidx;
 
@@ -95,17 +115,8 @@ add_tunnel(int argc, char *argv[], int genl_id, struct mnl_socket *nl)
 		gtp_tunnel_set_o_tei(t, atoi(argv[optidx++]));
 	}
 
-	if (inet_aton(argv[optidx++], &ms) < 0) {
-		perror("bad address for ms");
-		exit(EXIT_FAILURE);
-	}
-	gtp_tunnel_set_ms_ip4(t, &ms);
-
-	if (inet_aton(argv[optidx++], &sgsn) < 0) {
-		perror("bad address for sgsn");
-		exit(EXIT_FAILURE);
-	}
-	gtp_tunnel_set_sgsn_ip4(t, &sgsn);
+	set_addr(argv[optidx++], true, t);
+	set_addr(argv[optidx++], false, t);
 
 	gtp_add_tunnel(genl_id, nl, t);