ospf6d/ospf6_top.c

   1 /*
   2  * Copyright (C) 2003 Yasuhiro Ohara
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GNU Zebra; see the file COPYING.  If not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <zebra.h>
  23
  24 #include "log.h"
  25 #include "memory.h"
  26 #include "vty.h"
  27 #include "linklist.h"
  28 #include "prefix.h"
  29 #include "table.h"
  30 #include "thread.h"
  31 #include "command.h"
  32
  33 #include "ospf6_proto.h"
  34 #include "ospf6_message.h"
  35 #include "ospf6_lsa.h"
  36 #include "ospf6_lsdb.h"
  37 #include "ospf6_route.h"
  38 #include "ospf6_zebra.h"
  39
  40 #include "ospf6_top.h"
  41 #include "ospf6_area.h"
  42 #include "ospf6_interface.h"
  43 #include "ospf6_neighbor.h"
  44
  45 #include "ospf6_flood.h"
  46 #include "ospf6_asbr.h"
  47 #include "ospf6_abr.h"
  48 #include "ospf6_intra.h"
  49 #include "ospf6d.h"
  50
  51 /* global ospf6d variable */
  52 struct ospf6 *ospf6;
  53
  54 void
  55 ospf6_top_lsdb_hook_add (struct ospf6_lsa *lsa)
  56 {
  57   switch (ntohs (lsa->header->type))
  58     {
  59       case OSPF6_LSTYPE_AS_EXTERNAL:
  60         ospf6_asbr_lsa_add (lsa);
  61         break;
  62
  63       default:
  64         break;
  65     }
  66 }
  67
  68 void
  69 ospf6_top_lsdb_hook_remove (struct ospf6_lsa *lsa)
  70 {
  71   switch (ntohs (lsa->header->type))
  72     {
  73       case OSPF6_LSTYPE_AS_EXTERNAL:
  74         ospf6_asbr_lsa_remove (lsa);
  75         break;
  76
  77       default:
  78         break;
  79     }
  80 }
  81
  82 void
  83 ospf6_top_route_hook_add (struct ospf6_route *route)
  84 {
  85   ospf6_abr_originate_summary (route);
  86   ospf6_zebra_route_update_add (route);
  87 }
  88
  89 void
  90 ospf6_top_route_hook_remove (struct ospf6_route *route)
  91 {
  92   ospf6_abr_originate_summary (route);
  93   ospf6_zebra_route_update_remove (route);
  94 }
  95
  96 void
  97 ospf6_top_brouter_hook_add (struct ospf6_route *route)
  98 {
  99   ospf6_abr_examin_brouter (ADV_ROUTER_IN_PREFIX (&route->prefix));
 100   ospf6_asbr_lsentry_add (route);
 101   ospf6_abr_originate_summary (route);
 102 }
 103
 104 void
 105 ospf6_top_brouter_hook_remove (struct ospf6_route *route)
 106 {
 107   ospf6_abr_examin_brouter (ADV_ROUTER_IN_PREFIX (&route->prefix));
 108   ospf6_asbr_lsentry_remove (route);
 109   ospf6_abr_originate_summary (route);
 110 }
 111
 112 struct ospf6 *
 113 ospf6_create ()
 114 {
 115   struct ospf6 *o;
 116
 117   o = XMALLOC (MTYPE_OSPF6_TOP, sizeof (struct ospf6));
 118   memset (o, 0, sizeof (struct ospf6));
 119
 120   /* initialize */
 121   gettimeofday (&o->starttime, (struct timezone *) NULL);
 122   o->area_list = list_new ();
 123   o->area_list->cmp = ospf6_area_cmp;
 124   o->lsdb = ospf6_lsdb_create (o);
 125   o->lsdb_self = ospf6_lsdb_create (o);
 126   o->lsdb->hook_add = ospf6_top_lsdb_hook_add;
 127   o->lsdb->hook_remove = ospf6_top_lsdb_hook_remove;
 128
 129   o->route_table = ospf6_route_table_create ();
 130   o->route_table->hook_add = ospf6_top_route_hook_add;
 131   o->route_table->hook_remove = ospf6_top_route_hook_remove;
 132
 133   o->brouter_table = ospf6_route_table_create ();
 134   o->brouter_table->hook_add = ospf6_top_brouter_hook_add;
 135   o->brouter_table->hook_remove = ospf6_top_brouter_hook_remove;
 136
 137   o->external_table = ospf6_route_table_create ();
 138   o->external_id_table = route_table_init ();
 139
 140   return o;
 141 }
 142
 143 void
 144 ospf6_delete (struct ospf6 *o)
 145 {
 146   struct listnode *node, *nnode;
 147   struct ospf6_area *oa;
 148
 149   for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 150     ospf6_area_delete (oa);
 151
 152   ospf6_lsdb_delete (o->lsdb);
 153   ospf6_lsdb_delete (o->lsdb_self);
 154
 155   ospf6_route_table_delete (o->route_table);
 156   ospf6_route_table_delete (o->brouter_table);
 157
 158   ospf6_route_table_delete (o->external_table);
 159   route_table_finish (o->external_id_table);
 160
 161   XFREE (MTYPE_OSPF6_TOP, o);
 162 }
 163
 164 void
 165 ospf6_enable (struct ospf6 *o)
 166 {
 167   struct listnode *node, *nnode;
 168   struct ospf6_area *oa;
 169
 170   if (CHECK_FLAG (o->flag, OSPF6_DISABLED))
 171     {
 172       UNSET_FLAG (o->flag, OSPF6_DISABLED);
 173       for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 174         ospf6_area_enable (oa);
 175     }
 176 }
 177
 178 void
 179 ospf6_disable (struct ospf6 *o)
 180 {
 181   struct listnode *node, *nnode;
 182   struct ospf6_area *oa;
 183
 184   if (! CHECK_FLAG (o->flag, OSPF6_DISABLED))
 185     {
 186       SET_FLAG (o->flag, OSPF6_DISABLED);
 187
 188       for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 189         ospf6_area_disable (oa);
 190
 191       ospf6_lsdb_remove_all (o->lsdb);
 192       ospf6_route_remove_all (o->route_table);
 193       ospf6_route_remove_all (o->brouter_table);
 194     }
 195 }
 196
 197 int
 198 ospf6_maxage_remover (struct thread *thread)
 199 {
 200   struct ospf6 *o = (struct ospf6 *) THREAD_ARG (thread);
 201   struct ospf6_area *oa;
 202   struct ospf6_interface *oi;
 203   struct ospf6_neighbor *on;
 204   struct listnode *i, *j, *k;
 205
 206   o->maxage_remover = (struct thread *) NULL;
 207
 208   for (ALL_LIST_ELEMENTS_RO (o->area_list, i, oa))
 209     {
 210       for (ALL_LIST_ELEMENTS_RO (oa->if_list, j, oi))
 211         {
 212           for (ALL_LIST_ELEMENTS_RO (oi->neighbor_list, k, on))
 213             {
 214               if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
 215                   on->state != OSPF6_NEIGHBOR_LOADING)
 216                 continue;
 217
 218               return 0;
 219             }
 220         }
 221     }
 222
 223   for (ALL_LIST_ELEMENTS_RO (o->area_list, i, oa))
 224     {
 225       for (ALL_LIST_ELEMENTS_RO (oa->if_list, j, oi))
 226         OSPF6_LSDB_MAXAGE_REMOVER (oi->lsdb);
 227
 228       OSPF6_LSDB_MAXAGE_REMOVER (oa->lsdb);
 229     }
 230   OSPF6_LSDB_MAXAGE_REMOVER (o->lsdb);
 231
 232   return 0;
 233 }
 234
 235 void
 236 ospf6_maxage_remove (struct ospf6 *o)
 237 {
 238   if (o && ! o->maxage_remover)
 239     o->maxage_remover = thread_add_event (master, ospf6_maxage_remover, o, 0);
 240 }
 241
 242 /* start ospf6 */
 243 DEFUN (router_ospf6,
 244        router_ospf6_cmd,
 245        "router ospf6",
 246        ROUTER_STR
 247        OSPF6_STR)
 248 {
 249   if (ospf6 == NULL)
 250     ospf6 = ospf6_create ();
 251   if (CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 252     ospf6_enable (ospf6);
 253
 254   /* set current ospf point. */
 255   vty->node = OSPF6_NODE;
 256   vty->index = ospf6;
 257
 258   return CMD_SUCCESS;
 259 }
 260
 261 /* stop ospf6 */
 262 DEFUN (no_router_ospf6,
 263        no_router_ospf6_cmd,
 264        "no router ospf6",
 265        NO_STR
 266        OSPF6_ROUTER_STR)
 267 {
 268   if (ospf6 == NULL || CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 269     vty_out (vty, "OSPFv3 is not running%s", VNL);
 270   else
 271     ospf6_disable (ospf6);
 272
 273   /* return to config node . */
 274   vty->node = CONFIG_NODE;
 275   vty->index = NULL;
 276
 277   return CMD_SUCCESS;
 278 }
 279
 280 /* change Router_ID commands. */
 281 DEFUN (ospf6_router_id,
 282        ospf6_router_id_cmd,
 283        "router-id A.B.C.D",
 284        "Configure OSPF Router-ID\n"
 285        V4NOTATION_STR)
 286 {
 287   int ret;
 288   u_int32_t router_id;
 289   struct ospf6 *o;
 290
 291   o = (struct ospf6 *) vty->index;
 292
 293   ret = inet_pton (AF_INET, argv[0], &router_id);
 294   if (ret == 0)
 295     {
 296       vty_out (vty, "malformed OSPF Router-ID: %s%s", argv[0], VNL);
 297       return CMD_SUCCESS;
 298     }
 299
 300   o->router_id_static = router_id;
 301   if (o->router_id  == 0)
 302     o->router_id  = router_id;
 303
 304   return CMD_SUCCESS;
 305 }
 306
 307 DEFUN (ospf6_interface_area,
 308        ospf6_interface_area_cmd,
 309        "interface IFNAME area A.B.C.D",
 310        "Enable routing on an IPv6 interface\n"
 311        IFNAME_STR
 312        "Specify the OSPF6 area ID\n"
 313        "OSPF6 area ID in IPv4 address notation\n"
 314       )
 315 {
 316   struct ospf6 *o;
 317   struct ospf6_area *oa;
 318   struct ospf6_interface *oi;
 319   struct interface *ifp;
 320   u_int32_t area_id;
 321
 322   o = (struct ospf6 *) vty->index;
 323
 324   /* find/create ospf6 interface */
 325   ifp = if_get_by_name (argv[0]);
 326   oi = (struct ospf6_interface *) ifp->info;
 327   if (oi == NULL)
 328     oi = ospf6_interface_create (ifp);
 329   if (oi->area)
 330     {
 331       vty_out (vty, "%s already attached to Area %s%s",
 332                oi->interface->name, oi->area->name, VNL);
 333       return CMD_SUCCESS;
 334     }
 335
 336   /* parse Area-ID */
 337   if (inet_pton (AF_INET, argv[1], &area_id) != 1)
 338     {
 339       vty_out (vty, "Invalid Area-ID: %s%s", argv[1], VNL);
 340       return CMD_SUCCESS;
 341     }
 342
 343   /* find/create ospf6 area */
 344   oa = ospf6_area_lookup (area_id, o);
 345   if (oa == NULL)
 346     oa = ospf6_area_create (area_id, o);
 347
 348   /* attach interface to area */
 349   listnode_add (oa->if_list, oi); /* sort ?? */
 350   oi->area = oa;
 351
 352   SET_FLAG (oa->flag, OSPF6_AREA_ENABLE);
 353
 354   /* start up */
 355   thread_add_event (master, interface_up, oi, 0);
 356
 357   /* If the router is ABR, originate summary routes */
 358   if (ospf6_is_router_abr (o))
 359     ospf6_abr_enable_area (oa);
 360
 361   return CMD_SUCCESS;
 362 }
 363
 364 DEFUN (no_ospf6_interface_area,
 365        no_ospf6_interface_area_cmd,
 366        "no interface IFNAME area A.B.C.D",
 367        NO_STR
 368        "Disable routing on an IPv6 interface\n"
 369        IFNAME_STR
 370        "Specify the OSPF6 area ID\n"
 371        "OSPF6 area ID in IPv4 address notation\n"
 372        )
 373 {
 374   struct ospf6 *o;
 375   struct ospf6_interface *oi;
 376   struct ospf6_area *oa;
 377   struct interface *ifp;
 378   u_int32_t area_id;
 379
 380   o = (struct ospf6 *) vty->index;
 381
 382   ifp = if_lookup_by_name (argv[0]);
 383   if (ifp == NULL)
 384     {
 385       vty_out (vty, "No such interface %s%s", argv[0], VNL);
 386       return CMD_SUCCESS;
 387     }
 388
 389   oi = (struct ospf6_interface *) ifp->info;
 390   if (oi == NULL)
 391     {
 392       vty_out (vty, "Interface %s not enabled%s", ifp->name, VNL);
 393       return CMD_SUCCESS;
 394     }
 395
 396   /* parse Area-ID */
 397   if (inet_pton (AF_INET, argv[1], &area_id) != 1)
 398     {
 399       vty_out (vty, "Invalid Area-ID: %s%s", argv[1], VNL);
 400       return CMD_SUCCESS;
 401     }
 402
 403   if (oi->area->area_id != area_id)
 404     {
 405       vty_out (vty, "Wrong Area-ID: %s is attached to area %s%s",
 406                oi->interface->name, oi->area->name, VNL);
 407       return CMD_SUCCESS;
 408     }
 409
 410   thread_execute (master, interface_down, oi, 0);
 411
 412   oa = oi->area;
 413   listnode_delete (oi->area->if_list, oi);
 414   oi->area = (struct ospf6_area *) NULL;
 415
 416   /* Withdraw inter-area routes from this area, if necessary */
 417   if (oa->if_list->count == 0)
 418     {
 419       UNSET_FLAG (oa->flag, OSPF6_AREA_ENABLE);
 420       ospf6_abr_disable_area (oa);
 421     }
 422
 423   return CMD_SUCCESS;
 424 }
 425
 426 void
 427 ospf6_show (struct vty *vty, struct ospf6 *o)
 428 {
 429   struct listnode *n;
 430   struct ospf6_area *oa;
 431   char router_id[16], duration[32];
 432   struct timeval now, running;
 433
 434   /* process id, router id */
 435   inet_ntop (AF_INET, &o->router_id, router_id, sizeof (router_id));
 436   vty_out (vty, " OSPFv3 Routing Process (0) with Router-ID %s%s",
 437            router_id, VNL);
 438
 439   /* running time */
 440   gettimeofday (&now, (struct timezone *)NULL);
 441   timersub (&now, &o->starttime, &running);
 442   timerstring (&running, duration, sizeof (duration));
 443   vty_out (vty, " Running %s%s", duration, VNL);
 444
 445   /* Redistribute configuration */
 446   /* XXX */
 447
 448   /* LSAs */
 449   vty_out (vty, " Number of AS scoped LSAs is %u%s",
 450            o->lsdb->count, VNL);
 451
 452   /* Areas */
 453   vty_out (vty, " Number of areas in this router is %u%s",
 454            listcount (o->area_list), VNL);
 455
 456   for (ALL_LIST_ELEMENTS_RO (o->area_list, n, oa))
 457     ospf6_area_show (vty, oa);
 458 }
 459
 460 /* show top level structures */
 461 DEFUN (show_ipv6_ospf6,
 462        show_ipv6_ospf6_cmd,
 463        "show ipv6 ospf6",
 464        SHOW_STR
 465        IP6_STR
 466        OSPF6_STR)
 467 {
 468   OSPF6_CMD_CHECK_RUNNING ();
 469
 470   ospf6_show (vty, ospf6);
 471   return CMD_SUCCESS;
 472 }
 473
 474 DEFUN (show_ipv6_ospf6_route,
 475        show_ipv6_ospf6_route_cmd,
 476        "show ipv6 ospf6 route",
 477        SHOW_STR
 478        IP6_STR
 479        OSPF6_STR
 480        ROUTE_STR
 481        )
 482 {
 483   ospf6_route_table_show (vty, argc, argv, ospf6->route_table);
 484   return CMD_SUCCESS;
 485 }
 486
 487 ALIAS (show_ipv6_ospf6_route,
 488        show_ipv6_ospf6_route_detail_cmd,
 489        "show ipv6 ospf6 route (X:X::X:X|X:X::X:X/M|detail|summary)",
 490        SHOW_STR
 491        IP6_STR
 492        OSPF6_STR
 493        ROUTE_STR
 494        "Specify IPv6 address\n"
 495        "Specify IPv6 prefix\n"
 496        "Detailed information\n"
 497        "Summary of route table\n"
 498        );
 499
 500 DEFUN (show_ipv6_ospf6_route_match,
 501        show_ipv6_ospf6_route_match_cmd,
 502        "show ipv6 ospf6 route X:X::X:X/M match",
 503        SHOW_STR
 504        IP6_STR
 505        OSPF6_STR
 506        ROUTE_STR
 507        "Specify IPv6 prefix\n"
 508        "Display routes which match the specified route\n"
 509        )
 510 {
 511   const char *sargv[CMD_ARGC_MAX];
 512   int i, sargc;
 513
 514   /* copy argv to sargv and then append "match" */
 515   for (i = 0; i < argc; i++)
 516     sargv[i] = argv[i];
 517   sargc = argc;
 518   sargv[sargc++] = "match";
 519   sargv[sargc] = NULL;
 520
 521   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 522   return CMD_SUCCESS;
 523 }
 524
 525 DEFUN (show_ipv6_ospf6_route_match_detail,
 526        show_ipv6_ospf6_route_match_detail_cmd,
 527        "show ipv6 ospf6 route X:X::X:X/M match detail",
 528        SHOW_STR
 529        IP6_STR
 530        OSPF6_STR
 531        ROUTE_STR
 532        "Specify IPv6 prefix\n"
 533        "Display routes which match the specified route\n"
 534        "Detailed information\n"
 535        )
 536 {
 537   const char *sargv[CMD_ARGC_MAX];
 538   int i, sargc;
 539
 540   /* copy argv to sargv and then append "match" and "detail" */
 541   for (i = 0; i < argc; i++)
 542     sargv[i] = argv[i];
 543   sargc = argc;
 544   sargv[sargc++] = "match";
 545   sargv[sargc++] = "detail";
 546   sargv[sargc] = NULL;
 547
 548   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 549   return CMD_SUCCESS;
 550 }
 551
 552 ALIAS (show_ipv6_ospf6_route,
 553        show_ipv6_ospf6_route_type_cmd,
 554        "show ipv6 ospf6 route (intra-area|inter-area|external-1|external-2)",
 555        SHOW_STR
 556        IP6_STR
 557        OSPF6_STR
 558        ROUTE_STR
 559        "Dispaly Intra-Area routes\n"
 560        "Dispaly Inter-Area routes\n"
 561        "Dispaly Type-1 External routes\n"
 562        "Dispaly Type-2 External routes\n"
 563        );
 564
 565 DEFUN (show_ipv6_ospf6_route_type_detail,
 566        show_ipv6_ospf6_route_type_detail_cmd,
 567        "show ipv6 ospf6 route (intra-area|inter-area|external-1|external-2) detail",
 568        SHOW_STR
 569        IP6_STR
 570        OSPF6_STR
 571        ROUTE_STR
 572        "Dispaly Intra-Area routes\n"
 573        "Dispaly Inter-Area routes\n"
 574        "Dispaly Type-1 External routes\n"
 575        "Dispaly Type-2 External routes\n"
 576        "Detailed information\n"
 577        )
 578 {
 579   const char *sargv[CMD_ARGC_MAX];
 580   int i, sargc;
 581
 582   /* copy argv to sargv and then append "detail" */
 583   for (i = 0; i < argc; i++)
 584     sargv[i] = argv[i];
 585   sargc = argc;
 586   sargv[sargc++] = "detail";
 587   sargv[sargc] = NULL;
 588
 589   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 590   return CMD_SUCCESS;
 591 }
 592
 593 /* OSPF configuration write function. */
 594 int
 595 config_write_ospf6 (struct vty *vty)
 596 {
 597   char router_id[16];
 598   struct listnode *j, *k;
 599   struct ospf6_area *oa;
 600   struct ospf6_interface *oi;
 601
 602   /* OSPFv6 configuration. */
 603   if (ospf6 == NULL)
 604     return CMD_SUCCESS;
 605   if (CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 606     return CMD_SUCCESS;
 607
 608   inet_ntop (AF_INET, &ospf6->router_id_static, router_id, sizeof (router_id));
 609   vty_out (vty, "router ospf6%s", VNL);
 610   if (ospf6->router_id_static != 0)
 611     vty_out (vty, " router-id %s%s", router_id, VNL);
 612
 613   ospf6_redistribute_config_write (vty);
 614   ospf6_area_config_write (vty);
 615
 616   for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, j, oa))
 617     {
 618       for (ALL_LIST_ELEMENTS_RO (oa->if_list, k, oi))
 619         vty_out (vty, " interface %s area %s%s",
 620                  oi->interface->name, oa->name, VNL);
 621     }
 622   vty_out (vty, "!%s", VNL);
 623   return 0;
 624 }
 625
 626 /* OSPF6 node structure. */
 627 struct cmd_node ospf6_node =
 628 {
 629   OSPF6_NODE,
 630   "%s(config-ospf6)# ",
 631   1 /* VTYSH */
 632 };
 633
 634 /* Install ospf related commands. */
 635 void
 636 ospf6_top_init ()
 637 {
 638   /* Install ospf6 top node. */
 639   install_node (&ospf6_node, config_write_ospf6);
 640
 641   install_element (VIEW_NODE, &show_ipv6_ospf6_cmd);
 642   install_element (ENABLE_NODE, &show_ipv6_ospf6_cmd);
 643   install_element (CONFIG_NODE, &router_ospf6_cmd);
 644
 645   install_element (VIEW_NODE, &show_ipv6_ospf6_route_cmd);
 646   install_element (VIEW_NODE, &show_ipv6_ospf6_route_detail_cmd);
 647   install_element (VIEW_NODE, &show_ipv6_ospf6_route_match_cmd);
 648   install_element (VIEW_NODE, &show_ipv6_ospf6_route_match_detail_cmd);
 649   install_element (VIEW_NODE, &show_ipv6_ospf6_route_type_cmd);
 650   install_element (VIEW_NODE, &show_ipv6_ospf6_route_type_detail_cmd);
 651   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_cmd);
 652   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_detail_cmd);
 653   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_match_cmd);
 654   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_match_detail_cmd);
 655   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_type_cmd);
 656   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_type_detail_cmd);
 657
 658   install_default (OSPF6_NODE);
 659   install_element (OSPF6_NODE, &ospf6_router_id_cmd);
 660   install_element (OSPF6_NODE, &ospf6_interface_area_cmd);
 661   install_element (OSPF6_NODE, &no_ospf6_interface_area_cmd);
 662   install_element (OSPF6_NODE, &no_router_ospf6_cmd);
 663 }
 664
 665