diff --git a/ripngd/ripng_main.c b/ripngd/ripng_main.c
index 44c3876..bd1972a 100644
--- a/ripngd/ripng_main.c
+++ b/ripngd/ripng_main.c
@@ -32,6 +32,7 @@
 #include "log.h"
 #include "prefix.h"
 #include "if.h"
+#include "privs.h"
 
 #include "ripngd/ripngd.h"
 
@@ -51,10 +52,32 @@
   { "vty_addr",    required_argument, NULL, 'A'},
   { "vty_port",    required_argument, NULL, 'P'},
   { "retain",      no_argument,       NULL, 'r'},
+  { "user",        required_argument, NULL, 'u'},
   { "version",     no_argument,       NULL, 'v'},
   { 0 }
 };
 
+/* ripngd privileges */
+zebra_capabilities_t _caps_p [] = 
+{
+  ZCAP_RAW,
+  ZCAP_BIND
+};
+
+struct zebra_privs_t ripngd_privs =
+{
+#if defined(ZEBRA_USER)
+  .user = ZEBRA_USER,
+#endif
+#if defined ZEBRA_GROUP
+  .group = ZEBRA_GROUP,
+#endif
+  .caps_p = _caps_p,
+  .cap_num_p = 2,
+  .cap_num_i = 0
+};
+
+
 /* RIPngd program name */
 
 /* Route retain mode flag. */
@@ -89,6 +112,7 @@
 -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 ripngd.\n\
+-u, --user         User and group to run as\n\
 -v, --version      Print program version\n\
 -h, --help         Display this help and exit\n\
 \n\
@@ -190,7 +214,7 @@
     {
       int opt;
 
-      opt = getopt_long (argc, argv, "dlf:hA:P:v", longopts, 0);
+      opt = getopt_long (argc, argv, "dlf:hA:P:u:v", longopts, 0);
     
       if (opt == EOF)
 	break;
@@ -228,6 +252,9 @@
 	case 'r':
 	  retain_mode = 1;
 	  break;
+  case 'u':
+    ripngd_privs.group = ripngd_privs.user = optarg;
+    break;
 	case 'v':
 	  print_version (progname);
 	  exit (0);
@@ -244,6 +271,7 @@
   master = thread_master_create ();
 
   /* Library inits. */
+  zprivs_init (&ripngd_privs);
   signal_init ();
   cmd_init (1);
   vty_init ();