diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index f4180ab..4f7fde6 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -853,7 +853,7 @@
 		return -4;
 
 	/* connect to the MSC */
-	msc_con = bsc_msc_create(nat->msc_ip, 5000);
+	msc_con = bsc_msc_create(nat->msc_ip, nat->msc_port);
 	if (!msc_con) {
 		fprintf(stderr, "Creating a bsc_msc_connection failed.\n");
 		exit(1);
diff --git a/openbsc/src/nat/bsc_nat_utils.c b/openbsc/src/nat/bsc_nat_utils.c
index 623bec5..c9a90f9 100644
--- a/openbsc/src/nat/bsc_nat_utils.c
+++ b/openbsc/src/nat/bsc_nat_utils.c
@@ -52,6 +52,7 @@
 	nat->stats.bsc.auth_fail = counter_alloc("nat.bsc.auth_fail");
 	nat->stats.msc.reconn = counter_alloc("nat.msc.conn");
 	nat->msc_ip = talloc_strdup(nat, "127.0.0.1");
+	nat->msc_port = 5000;
 	return nat;
 }
 
diff --git a/openbsc/src/nat/bsc_nat_vty.c b/openbsc/src/nat/bsc_nat_vty.c
index a91da7c..e0a5999 100644
--- a/openbsc/src/nat/bsc_nat_vty.c
+++ b/openbsc/src/nat/bsc_nat_vty.c
@@ -56,6 +56,7 @@
 	if (_nat->imsi_deny)
 		vty_out(vty, " insi deny %s%s", _nat->imsi_deny, VTY_NEWLINE);
 	vty_out(vty, " msc ip %s%s", _nat->msc_ip, VTY_NEWLINE);
+	vty_out(vty, " msc port %d%s", _nat->msc_port, VTY_NEWLINE);
 	return CMD_SUCCESS;
 }
 
@@ -213,6 +214,15 @@
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_nat_msc_port,
+      cfg_nat_msc_port_cmd,
+      "msc port <1-65500>",
+      "Set the port of the MSC.")
+{
+	_nat->msc_port = atoi(argv[0]);
+	return CMD_SUCCESS;
+}
+
 /* per BSC configuration */
 DEFUN(cfg_bsc, cfg_bsc_cmd, "bsc BSC_NR", "Select a BSC to configure\n")
 {
@@ -327,6 +337,7 @@
 	install_element(NAT_NODE, &cfg_nat_imsi_allow_cmd);
 	install_element(NAT_NODE, &cfg_nat_imsi_deny_cmd);
 	install_element(NAT_NODE, &cfg_nat_msc_ip_cmd);
+	install_element(NAT_NODE, &cfg_nat_msc_port_cmd);
 
 	/* BSC subgroups */
 	install_element(NAT_NODE, &cfg_bsc_cmd);