diff --git a/openbsc/include/openbsc/signal.h b/openbsc/include/openbsc/signal.h
index f13b12b..8b6b4a6 100644
--- a/openbsc/include/openbsc/signal.h
+++ b/openbsc/include/openbsc/signal.h
@@ -124,6 +124,11 @@
 	void *data;
 };
 
+struct ipacc_ack_signal_data {
+	struct gsm_bts *bts;
+	u_int8_t msg_type;	
+};
+
 /* Management */
 int register_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);
 void unregister_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);
diff --git a/openbsc/src/abis_nm.c b/openbsc/src/abis_nm.c
index 9dedcaf..8a96704 100644
--- a/openbsc/src/abis_nm.c
+++ b/openbsc/src/abis_nm.c
@@ -2721,6 +2721,7 @@
 	struct abis_om_fom_hdr *foh;
 	u_int8_t idstrlen = oh->data[0];
 	struct tlv_parsed tp;
+	struct ipacc_ack_signal_data signal;
 
 	if (strncmp((char *)&oh->data[1], ipaccess_magic, idstrlen)) {
 		LOGP(DNM, LOGL_ERROR, "id string is not com.ipaccess !?!\n");
@@ -2803,10 +2804,14 @@
 	case NM_MT_IPACC_RSL_CONNECT_NACK:
 	case NM_MT_IPACC_SET_NVATTR_NACK:
 	case NM_MT_IPACC_GET_NVATTR_NACK:
-		dispatch_signal(SS_NM, S_NM_IPACC_NACK, &foh->msg_type);
+		signal.bts = msg->trx->bts;
+		signal.msg_type = foh->msg_type;
+		dispatch_signal(SS_NM, S_NM_IPACC_NACK, &signal);
 		break;
 	case NM_MT_IPACC_SET_NVATTR_ACK:
-		dispatch_signal(SS_NM, S_NM_IPACC_ACK, &foh->msg_type);
+		signal.bts = msg->trx->bts;
+		signal.msg_type = foh->msg_type;
+		dispatch_signal(SS_NM, S_NM_IPACC_ACK, &signal);
 		break;
 	default:
 		break;
diff --git a/openbsc/src/ipaccess/ipaccess-config.c b/openbsc/src/ipaccess/ipaccess-config.c
index 7591614..29b9a9b 100644
--- a/openbsc/src/ipaccess/ipaccess-config.c
+++ b/openbsc/src/ipaccess/ipaccess-config.c
@@ -55,6 +55,7 @@
 static u_int16_t nv_mask;
 static char *software = NULL;
 static int sw_load_state = 0;
+static int oml_state = 0;
 
 struct sw_load {
 	u_int8_t file_id[255];
@@ -87,11 +88,23 @@
 	return 0;
 }
 
-static int ipacc_msg_ack(u_int8_t mt)
+static int ipacc_msg_ack(u_int8_t mt, struct gsm_bts *bts)
 {
 	if (sw_load_state == 1) {
 		fprintf(stderr, "The new software is activaed.\n");
-		exit(0);
+
+		if (restart) {
+			abis_nm_ipaccess_restart(bts);
+		} else {
+			exit(0);
+		}
+	} else if (oml_state == 1) {
+		fprintf(stderr, "Set the primary OML IP.\n");
+		if (restart) {
+			abis_nm_ipaccess_restart(bts);
+		} else {
+			exit(0);
+		}
 	}
 
 	return 0;
@@ -178,15 +191,15 @@
 static int nm_sig_cb(unsigned int subsys, unsigned int signal,
 		     void *handler_data, void *signal_data)
 {
-	u_int8_t *msg_type;
+	struct ipacc_ack_signal_data *ipacc_data;
 
 	switch (signal) {
 	case S_NM_IPACC_NACK:
-		msg_type = signal_data;
-		return ipacc_msg_nack(*msg_type);
+		ipacc_data = signal_data;
+		return ipacc_msg_nack(ipacc_data->msg_type);
 	case S_NM_IPACC_ACK:
-		msg_type = signal_data;
-		return ipacc_msg_ack(*msg_type);
+		ipacc_data = signal_data;
+		return ipacc_msg_ack(ipacc_data->msg_type, ipacc_data->bts);
 	case S_NM_TEST_REP:
 		return test_rep(signal_data);
 	default:
@@ -315,6 +328,7 @@
 		*cur++ = 0;
 		*cur++ = 0;
 		printf("setting primary OML link IP to '%s'\n", inet_ntoa(ia));
+		oml_state = 1;
 		abis_nm_ipaccess_set_nvattr(bts, buf, 3+len);
 	}
 	if (nv_mask) {
@@ -332,7 +346,7 @@
 		abis_nm_ipaccess_set_nvattr(bts, buf, 3+len);
 	}
 
-	if (restart) {
+	if (restart && !prim_oml_ip && !software) {
 		printf("restarting BTS\n");
 		abis_nm_ipaccess_restart(bts);
 	}