diff --git a/repos/os/include/net/ethernet.h b/repos/os/include/net/ethernet.h
index 0bc45834f..b52f36fac 100644
--- a/repos/os/include/net/ethernet.h
+++ b/repos/os/include/net/ethernet.h
@@ -21,7 +21,13 @@
 #include <util/endian.h>
 #include <net/mac_address.h>
 
-namespace Net { class Ethernet_frame; }
+namespace Net
+{
+	class Ethernet_frame;
+
+	template <Genode::size_t DATA_SIZE>
+	class Ethernet_frame_sized;
+}
 
 
 /**
@@ -57,6 +63,7 @@ class Net::Ethernet_frame
 
 		class No_ethernet_frame : Genode::Exception {};
 
+		enum { MIN_SIZE = 64 };
 
 		/**
 		 * Id representing encapsulated protocol.
@@ -178,4 +185,32 @@ class Net::Ethernet_frame
 
 } __attribute__((packed));
 
+
+template <Genode::size_t DATA_SIZE>
+class Net::Ethernet_frame_sized : public Ethernet_frame
+{
+	private:
+
+		enum {
+			HS = sizeof(Ethernet_frame),
+			DS = DATA_SIZE + HS >= MIN_SIZE ? DATA_SIZE : MIN_SIZE - HS,
+		};
+
+		Genode::uint8_t  _data[DS];
+		Genode::uint32_t _checksum;
+
+	public:
+
+		Ethernet_frame_sized(Mac_address dst_in, Mac_address src_in,
+		                     Ether_type type_in)
+		:
+			Ethernet_frame(sizeof(Ethernet_frame))
+		{
+			dst(dst_in);
+			src(src_in);
+			type(type_in);
+		}
+
+} __attribute__((packed));
+
 #endif /* _NET__ETHERNET_H_ */