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diff --git a/src/lib/dns/exceptions.h b/src/lib/dns/exceptions.h
new file mode 100644
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+++ b/src/lib/dns/exceptions.h
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+// Copyright (C) 2010-2015 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/.
+
+// XXX: we have another exceptions.h, so we need to use a prefix "DNS_" in
+// the include guard.  More preferably, we should define a consistent naming
+// style for the header guide (e.g. module-name_file-name_H) throughout the
+// package.
+
+#ifndef DNS_EXCEPTIONS_H
+#define DNS_EXCEPTIONS_H 1
+
+#include <exceptions/exceptions.h>
+
+namespace isc {
+namespace dns {
+
+///
+/// \brief A standard DNS module exception ...[TBD]
+///
+class Rcode;                    // forward declaration
+
+class Exception : public isc::Exception {
+public:
+    Exception(const char* file, size_t line, const char* what) :
+        isc::Exception(file, line, what) {}
+};
+
+///
+/// \brief Base class for all sorts of text parse errors.
+///
+class DNSTextError : public isc::dns::Exception {
+public:
+    DNSTextError(const char* file, size_t line, const char* what) :
+        isc::dns::Exception(file, line, what) {}
+};
+
+///
+/// \brief Base class for name parser exceptions.
+///
+class NameParserException : public DNSTextError {
+public:
+    NameParserException(const char* file, size_t line, const char* what) :
+        DNSTextError(file, line, what) {}
+};
+
+class DNSProtocolError : public isc::dns::Exception {
+public:
+    DNSProtocolError(const char* file, size_t line, const char* what) :
+        isc::dns::Exception(file, line, what) {}
+    virtual const Rcode& getRcode() const = 0;
+};
+
+class DNSMessageFORMERR : public DNSProtocolError {
+public:
+    DNSMessageFORMERR(const char* file, size_t line, const char* what) :
+        DNSProtocolError(file, line, what) {}
+    virtual const Rcode& getRcode() const;
+};
+
+class DNSMessageBADVERS : public DNSProtocolError {
+public:
+    DNSMessageBADVERS(const char* file, size_t line, const char* what) :
+        DNSProtocolError(file, line, what) {}
+    virtual const Rcode& getRcode() const;
+};
+
+}
+}
+#endif  // DNS_EXCEPTIONS_H
+
+// Local Variables: 
+// mode: c++
+// End: