diff --git a/isisd/isis_dr.h b/isisd/isis_dr.h
new file mode 100644
index 0000000..73d9cd3
--- /dev/null
+++ b/isisd/isis_dr.h
@@ -0,0 +1,42 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_dr.h
+ *                             IS-IS designated router related routines   
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           Tampere University of Technology      
+ *                           Institute of Communications Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify it 
+ * under the terms of the GNU General Public Licenseas published by the Free 
+ * Software Foundation; either version 2 of the License, or (at your option) 
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,but WITHOUT 
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
+ * more details.
+
+ * You should have received a copy of the GNU General Public License along 
+ * with this program; if not, write to the Free Software Foundation, Inc., 
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef _ZEBRA_ISIS_DR_H
+#define _ZEBRA_ISIS_DR_H
+
+int isis_run_dr_l1 (struct thread *thread);
+int isis_run_dr_l2 (struct thread *thread);
+int isis_dr_elect (struct isis_circuit *circuit, int level);
+int isis_dr_resign (struct isis_circuit *circuit, int level);
+int isis_dr_commence (struct isis_circuit *circuit, int level);
+char *isis_disflag2string (int disflag);
+
+enum isis_dis_state {     
+  ISIS_IS_NOT_DIS,
+  ISIS_IS_DIS,
+  ISIS_WAS_DIS,
+  ISIS_UNKNOWN_DIS
+};
+
+#endif /* _ZEBRA_ISIS_DR_H */
+