diff --git a/bgpd/bgp_main.c b/bgpd/bgp_main.c
new file mode 100644
index 0000000..7fc68fa
--- /dev/null
+++ b/bgpd/bgp_main.c
@@ -0,0 +1,285 @@
+/* Main routine of bgpd.
+   Copyright (C) 1996, 97, 98, 1999 Kunihiro Ishiguro
+
+This file is part of GNU Zebra.
+
+GNU Zebra is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+GNU Zebra 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 GNU Zebra; see the file COPYING.  If not, write to the Free
+Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#include <zebra.h>
+
+#include "vector.h"
+#include "vty.h"
+#include "command.h"
+#include "getopt.h"
+#include "thread.h"
+#include "version.h"
+#include "memory.h"
+#include "prefix.h"
+#include "log.h"
+
+#include "bgpd/bgpd.h"
+#include "bgpd/bgp_attr.h"
+#include "bgpd/bgp_mplsvpn.h"
+
+/* bgpd options, we use GNU getopt library. */
+struct option longopts[] = 
+{
+  { "daemon",      no_argument,       NULL, 'd'},
+  { "config_file", required_argument, NULL, 'f'},
+  { "pid_file",    required_argument, NULL, 'i'},
+  { "bgp_port",    required_argument, NULL, 'p'},
+  { "vty_addr",    required_argument, NULL, 'A'},
+  { "vty_port",    required_argument, NULL, 'P'},
+  { "retain",      no_argument,       NULL, 'r'},
+  { "no_kernel",   no_argument,       NULL, 'n'},
+  { "version",     no_argument,       NULL, 'v'},
+  { "help",        no_argument,       NULL, 'h'},
+  { 0 }
+};
+
+/* Configuration file and directory. */
+char config_current[] = BGP_DEFAULT_CONFIG;
+char config_default[] = SYSCONFDIR BGP_DEFAULT_CONFIG;
+
+/* Route retain mode flag. */
+int retain_mode = 0;
+
+/* Master of threads. */
+struct thread_master *master;
+
+/* Manually specified configuration file name.  */
+char *config_file = NULL;
+
+/* Process ID saved for use by init system */
+char *pid_file = PATH_BGPD_PID;
+
+/* VTY port number and address.  */
+int vty_port = BGP_VTY_PORT;
+char *vty_addr = NULL;
+
+/* Help information display. */
+static void
+usage (char *progname, int status)
+{
+  if (status != 0)
+    fprintf (stderr, "Try `%s --help' for more information.\n", progname);
+  else
+    {    
+      printf ("Usage : %s [OPTION...]\n\n\
+Daemon which manages kernel routing table management and \
+redistribution between different routing protocols.\n\n\
+-d, --daemon       Runs in daemon mode\n\
+-f, --config_file  Set configuration file name\n\
+-i, --pid_file     Set process identifier file name\n\
+-p, --bgp_port     Set bgp protocol's port number\n\
+-A, --vty_addr     Set vty's bind address\n\
+-P, --vty_port     Set vty's port number\n\
+-r, --retain       When program terminates, retain added route by bgpd.\n\
+-n, --no_kernel    Do not install route to kernel.\n\
+-v, --version      Print program version\n\
+-h, --help         Display this help and exit\n\
+\n\
+Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
+    }
+
+  exit (status);
+}
+
+/* SIGHUP handler. */
+void 
+sighup (int sig)
+{
+  zlog (NULL, LOG_INFO, "SIGHUP received");
+
+  /* Terminate all thread. */
+  bgp_terminate ();
+  bgp_reset ();
+  zlog_info ("bgpd restarting!");
+
+  /* Reload config file. */
+  vty_read_config (config_file, config_current, config_default);
+
+  /* Create VTY's socket */
+  vty_serv_sock (vty_addr, vty_port ? vty_port : BGP_VTY_PORT, BGP_VTYSH_PATH);
+
+  /* Try to return to normal operation. */
+}
+
+/* SIGINT handler. */
+void
+sigint (int sig)
+{
+  zlog (NULL, LOG_INFO, "Terminating on signal");
+
+  if (! retain_mode)
+    bgp_terminate ();
+
+  exit (0);
+}
+
+/* SIGUSR1 handler. */
+void
+sigusr1 (int sig)
+{
+  zlog_rotate (NULL);
+}
+
+/* Signale wrapper. */
+RETSIGTYPE *
+signal_set (int signo, void (*func)(int))
+{
+  int ret;
+  struct sigaction sig;
+  struct sigaction osig;
+
+  sig.sa_handler = func;
+  sigemptyset (&sig.sa_mask);
+  sig.sa_flags = 0;
+#ifdef SA_RESTART
+  sig.sa_flags |= SA_RESTART;
+#endif /* SA_RESTART */
+
+  ret = sigaction (signo, &sig, &osig);
+
+  if (ret < 0) 
+    return (SIG_ERR);
+  else
+    return (osig.sa_handler);
+}
+
+/* Initialization of signal handles. */
+void
+signal_init ()
+{
+  signal_set (SIGHUP, sighup);
+  signal_set (SIGINT, sigint);
+  signal_set (SIGTERM, sigint);
+  signal_set (SIGPIPE, SIG_IGN);
+  signal_set (SIGUSR1, sigusr1);
+}
+
+/* Main routine of bgpd. Treatment of argument and start bgp finite
+   state machine is handled at here. */
+int
+main (int argc, char **argv)
+{
+  char *p;
+  int opt;
+  int daemon_mode = 0;
+  char *progname;
+  struct thread thread;
+
+  /* Set umask before anything for security */
+  umask (0027);
+
+  /* Preserve name of myself. */
+  progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
+
+  zlog_default = openzlog (progname, ZLOG_NOLOG, ZLOG_BGP,
+			   LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON);
+
+  /* BGP master init. */
+  bgp_master_init ();
+
+  /* Command line argument treatment. */
+  while (1) 
+    {
+      opt = getopt_long (argc, argv, "df:hp:A:P:rnv", longopts, 0);
+    
+      if (opt == EOF)
+	break;
+
+      switch (opt) 
+	{
+	case 0:
+	  break;
+	case 'd':
+	  daemon_mode = 1;
+	  break;
+	case 'f':
+	  config_file = optarg;
+	  break;
+        case 'i':
+          pid_file = optarg;
+          break;
+	case 'p':
+	  bm->port = atoi (optarg);
+	  break;
+	case 'A':
+	  vty_addr = optarg;
+	  break;
+	case 'P':
+	  vty_port = atoi (optarg);
+	  break;
+	case 'r':
+	  retain_mode = 1;
+	  break;
+	case 'n':
+	  bgp_option_set (BGP_OPT_NO_FIB);
+	  break;
+	case 'v':
+	  print_version (progname);
+	  exit (0);
+	  break;
+	case 'h':
+	  usage (progname, 0);
+	  break;
+	default:
+	  usage (progname, 1);
+	  break;
+	}
+    }
+
+  /* Make thread master. */
+  master = bm->master;
+
+  /* Initializations. */
+  srand (time (NULL));
+  signal_init ();
+  cmd_init (1);
+  vty_init ();
+  memory_init ();
+
+  /* BGP related initialization.  */
+  bgp_init ();
+
+  /* Sort CLI commands. */
+  sort_node ();
+
+  /* Parse config file. */
+  vty_read_config (config_file, config_current, config_default);
+
+  /* Turn into daemon if daemon_mode is set. */
+  if (daemon_mode)
+    daemon (0, 0);
+
+  /* Process ID file creation. */
+  pid_output (pid_file);
+
+  /* Make bgp vty socket. */
+  vty_serv_sock (vty_addr, vty_port, BGP_VTYSH_PATH);
+
+  /* Print banner. */
+  zlog_info ("BGPd %s starting: vty@%d, bgp@%d", ZEBRA_VERSION,
+	     vty_port, bm->port);
+
+  /* Start finite state machine, here we go! */
+  while (thread_fetch (master, &thread))
+    thread_call (&thread);
+
+  /* Not reached. */
+  exit (0);
+}