diff --git a/isisd/isis_misc.h b/isisd/isis_misc.h
new file mode 100644
index 0000000..0e219c6
--- /dev/null
+++ b/isisd/isis_misc.h
@@ -0,0 +1,94 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_misc.h
+ *                             Miscellanous 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_MISC_H
+#define _ZEBRA_ISIS_MISC_H
+
+int dotformat2buff (u_char *, u_char *);
+int string2circuit_t (u_char *);
+const char *circuit_t2string (int);
+const char *syst2string (int);
+struct in_addr newprefix2inaddr (u_char *prefix_start, u_char prefix_masklen);
+/*
+ * Converting input to memory stored format
+ * return value of 0 indicates wrong input
+ */
+int dotformat2buff (u_char *, u_char *);
+int sysid2buff (u_char *, u_char *);
+
+/*
+ * Printing functions
+ */
+char *isonet_print (u_char *, int len);
+char *sysid_print (u_char *);
+char *snpa_print  (u_char *);
+char *rawlspid_print (u_char *);
+char *time2string (u_int32_t);
+/* typedef struct nlpids nlpids; */
+char *nlpid2string (struct nlpids *);
+
+
+/*
+ * misc functions
+ */
+int  speaks (struct nlpids *nlpids, int family);
+unsigned long isis_jitter (unsigned long timer, unsigned long jitter);
+
+/*
+ * macros
+ */
+#define GETSYSID(A,L) (A->area_addr + (A->addr_len - (L + 1)))
+
+
+/* staticly assigned vars for printing purposes */
+struct in_addr              new_prefix; 
+/* len of xxxx.xxxx.xxxx + place for #0 termination */
+char                         sysid[15]; 
+/* len of xxxx.xxxx.xxxx + place for #0 termination */
+char                          snpa[15]; 
+/* len of xx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xx */
+char                        isonet[51]; 
+/* + place for #0 termination */
+/* len of xxxx.xxxx.xxxx.xx.xx + place for #0 termination */
+char                         lspid[21]; 
+/* len of xxYxxMxWxdxxhxxmxxs + place for #0 termination */
+char                    datestring[20]; 
+char                   nlpidstring[30];
+
+/* used for calculating nice string representation instead of plain seconds */
+
+#define SECS_PER_MINUTE 60
+#define SECS_PER_HOUR   3600
+#define SECS_PER_DAY    86400
+#define SECS_PER_WEEK   604800
+#define SECS_PER_MONTH  2628000
+#define SECS_PER_YEAR   31536000
+
+enum {     
+  ISIS_UI_LEVEL_BRIEF,
+  ISIS_UI_LEVEL_DETAIL,
+  ISIS_UI_LEVEL_EXTENSIVE,
+};
+
+
+#endif