diff --git a/include/s11/gtpv2c.h b/include/s11/gtpv2c.h
new file mode 100644
index 0000000..6177146
--- /dev/null
+++ b/include/s11/gtpv2c.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2003-2018, Great Software Laboratory Pvt. Ltd.
+ * Copyright (c) 2017 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __GTPV2C_H_
+#define __GTPV2C_H_
+
+#include <stdint.h>
+
+#include "s11_structs.h"
+
+#define MAX_GTPV2C_UDP_LEN                                   4096
+
+#define GTP_VERSION_GTPV2C                                   2
+
+/* GTP Message Type */
+#define GTP_CREATE_SESSION_REQ                               32
+#define GTP_CREATE_SESSION_RSP                               33
+#define GTP_MODIFY_BEARER_REQ                                34
+#define GTP_MODIFY_BEARER_RSP                                35
+#define GTP_DELETE_SESSION_REQ                               36
+#define GTP_DELETE_SESSION_RSP                               37
+//S1 Release
+#define GTP_RELEASE_BEARER_REQ				     170
+
+enum gtpv2c_interfaces {
+	GTPV2C_IFTYPE_S1U_ENODEB_GTPU = 0,
+};
+
+
+void
+set_gtpv2c_header(struct gtpv2c_header *gtpv2c_tx, uint8_t type,
+		uint32_t teid, uint32_t seq);
+
+#endif /* __GTPV2C_H_ */