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diff --git a/src/bin/dhcp4/dhcp4to6_ipc.h b/src/bin/dhcp4/dhcp4to6_ipc.h
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+++ b/src/bin/dhcp4/dhcp4to6_ipc.h
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+// Copyright (C) 2015-2019 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef DHCP4TO6_IPC_H
+#define DHCP4TO6_IPC_H
+
+/// @file dhcp4to6_ipc.h Defines the Dhcp4o6Ipc class.
+/// This file defines the class Kea uses to act as the DHCPv4 server
+/// side of DHCPv4-over-DHCPv6 communication between servers.
+///
+
+#include <dhcp/pkt4o6.h>
+#include <dhcpsrv/dhcp4o6_ipc.h>
+#include <boost/shared_ptr.hpp>
+
+namespace isc {
+namespace dhcp {
+
+/// @brief Handles DHCPv4-over-DHCPv6 IPC on the DHCPv4 server side
+class Dhcp4to6Ipc : public Dhcp4o6IpcBase {
+protected:
+    /// @brief Constructor
+    ///
+    /// Default constructor
+    Dhcp4to6Ipc();
+
+    /// @brief Destructor.
+    virtual ~Dhcp4to6Ipc() { }
+
+public:
+    /// @brief Returns pointer to the sole instance of Dhcp4to6Ipc
+    ///
+    /// Dhcp4to6Ipc is a singleton class
+    ///
+    /// @return the only existing instance of DHCP4o6 IPC
+    static Dhcp4to6Ipc& instance();
+
+    /// @brief Open communication socket
+    ///
+    /// Call base open method and sets the handler/callback when needed
+    virtual void open();
+
+    /// @brief On receive handler
+    ///
+    /// The handler processes the DHCPv4-query DHCPv6 packet and
+    /// sends the DHCPv4-response DHCPv6 packet back to the DHCPv6 server
+    static void handler(int /* fd */);
+};
+
+} // namespace isc
+} // namespace dhcp
+
+#endif