diff --git a/sys/include/net/ng_nettype.h b/sys/include/net/ng_nettype.h
new file mode 100644
index 0000000000..8c33ed2980
--- /dev/null
+++ b/sys/include/net/ng_nettype.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     net
+ * @{
+ *
+ * @file
+ * @brief   Protocol type definitions
+ *
+ * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
+ */
+#ifndef NG_NETTYPE_H_
+#define NG_NETTYPE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Definition of protocol types in the network stack.
+ *
+ * @note    Expand at will.
+ */
+typedef enum {
+    NG_NETTYPE_UNDEF = 0,       /**< Protocol is undefined */
+
+#ifdef MODULE_NG_SIXLOWPAN
+    NG_NETTYPE_SIXLOWPAN,       /**< Protocol is 6LoWPAN */
+#endif
+
+    /**
+     * @{
+     * @name Network layer
+     */
+#ifdef MODULE_NG_IPV6
+    NG_NETTYPE_IPV6,            /**< Protocol is IPv6 */
+#endif
+#ifdef MODULE_NG_ICMPV6
+    NG_NETTYPE_ICMPV6,          /**< Protocol is ICMPv6 */
+#endif
+    /**
+     * @}
+     */
+
+    /**
+     * @{
+     * @name Transport layer
+     *
+     */
+#ifdef MODULE_NG_TCP
+    NG_NETTYPE_TCP,             /**< Protocol is TCP */
+#endif
+#ifdef MODULE_NG_UDP
+    NG_NETTYPE_UDP,             /**< Protocol is UDP */
+#endif
+    /**
+     * @}
+     */
+
+    NG_NETTYPE_NUMOF,           /**< maximum number of available protocols */
+} ng_nettype_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NG_NETTYPE_H_ */
+/** @} */