Cisco IOS IP Routing: RIP Command Reference

1 Cisco IOS IP routing : RIP CommandReferenceAmericas HeadquartersCisco Systems, West Tasman DriveSan Jose, CA 95134-1706 : 408 526-4000 800 553-NETS (6387)Fax: 408 527-0883 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND,EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPEDWITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS Reference . IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITEDWARRANTY, CONTACT YOUR Cisco REPRESENTATIVE FOR A Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB s public domain versionof the UNIX operating system.

2 All rights reserved. Copyright 1981, Regents of the University of ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED AS IS WITH ALLFAULTS. Cisco AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR NO EVENT SHALL Cisco OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING,WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF Cisco ORITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the and other countries.

3 To view a list of Cisco trademarks, go to this URL: Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationshipbetween Cisco and any other company. (1110R)Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, Command display output,network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative contentis unintentional and coincidental. 2012 Cisco Systems, Inc. All rights Commands 5auto-summary (RIP) 6bfd all-interfaces 8default-information originate (RIP) 11default-metric (RIP) 13flash-update-threshold 15input-queue 17ip rip advertise 19ip rip authentication key-chain 21ip rip authentication mode 23ip rip initial-delay 25ip rip receive version 27ip rip send version 29ip rip triggered 31ip rip v2-broadcast 33ip split-horizon (RIP) 35ip summary-address rip 37neighbor (RIP) 39network (RIP) 41offset-list (RIP) 43output-delay 45router rip 46service-module ip rip relay 47show ip rip database 49show ip rip neighbors 51skeptical interval 53throttle (router configuration) 55timers basic (RIP) 56validate-update-source 59 Cisco IOS IP routing .

4 RIP Command Reference iiiversion 61 Contents Cisco IOS IP routing : RIP Command Referenceiv RIP CommandsCisco IOS IP routing : RIP Command Reference 5auto-summary (RIP)To restore the default behavior of automatic summarization of subnet routes into network-level routes, usethe auto-summary Command in router configuration mode. Todisable this function and send subprefixrouting information across classful network boundaries, use the no form of this auto-summaryThis Command has no arguments or (the software summarizes subprefixes to the classful network boundary when crossing classfulnetwork boundaries).Router Command was (33)SRAThis Command was integrated into Cisco IOSR elease (33) Command is supported in the Cisco IOSR elease train.

5 Support in a specific of this train depends on your feature set,platform, and platform summarization reduces the amount of routing information in the routing Version 1 always uses automatic summarization. If you are using RIP Version 2, you can turn offautomatic summarization by specifying the no auto-summary Command . Disable automaticsummarization if you must perform routing between disconnected subnets. When automatic summarizationis off, subnets are the following example, network numbers are not summarized automatically:router rip version 2 no auto-summarySyntax DescriptionCommand DefaultCommand ModesCommand HistoryUsage GuidelinesExamplesRIP Commands auto-summary (RIP) Cisco IOS IP routing : RIP Command Reference6 RIP Commandsauto-summary (RIP) Cisco IOS IP routing .

6 RIP Command Reference 7bfd all-interfacesTo enable Bidirectional Forwarding Detection (BFD) for all interfaces participating in the routing process,use the bfd all-interfaces Command in router configuration or address family interface configuration disable BFD for all neighbors on a single interface, use the no form of this all-interfacesno bfd all-interfacesThis Command has no arguments or is disabled on the interfaces participating in the routing configuration (config-router)Address family interface configuration (config-router-af) (18)SXEThis Command was (31)SThis Command was integrated into Cisco IOSR elease (31) (4)TThis Command was integrated into Cisco IOSR elease (4) (33)SRAThis Command was integrated into Cisco IOSR elease (33) IOS XE Release Command was integrated into Cisco IOSR elease XE and implemented on the Cisco ASR1000 Series Aggregation Services (33)SREThis Command was modified.

7 Support for IPv6 (1)MThis Command was modified. The bfd all-interfaces Command in named router configurationmode was replaced by the bfd Command in addressfamily interface DescriptionCommand DefaultCommand ModesCommand HistoryRIP Commands bfd all-interfaces Cisco IOS IP routing : RIP Command Reference8 (2)TThis Command was modified. Support for IPv6 IOS XE Release Command was modified. Support for theRouting Information Protocol (RIP) was (4)SThis Command was modified. Support for IPv6 IOS XE Release Command was modified. Support for IPv6 are two methods to configure routing protocols to use BFD for failure detection. To enable BFD forall interfaces, enter the bfd all-interfaces Command in router configuration mode. In Cisco IOS (24)T, Cisco IOS (33)SRA, and earlier releases, the bfd all-interfaces Command works in routerconfiguration mode and address family interface Cisco IOS Release (1)M and later releases, the bfd all-interfaces Command in named routerconfiguration mode is replaced by the bfd Command in address family interface configuration mode.

8 Usethe bfd Command in address family interface configuration mode to achieve the same functionality as thatof the bfd all-interfaces Command in router configuration following example shows how to enable BFD for all Enhanced Interior Gateway routing Protocol(EIGRP) neighbors:Router> enableRouter# configure terminalRouter(config)# router eigrp 123 Router(config-router)# bfd all-interfacesRouter(config-router)# endThe following example shows how to enable BFD for all Intermediate System-to-Intermediate System (IS-IS) neighbors:Router> enableRouter# configure terminalRouter(config)# router isis tag1 Router(config-router)# bfd all-interfacesRouter(config-router)# endThe following example shows how to enable BFD for all Open Shortest Path First (OSPF) neighbors:Router> enableRouter# configure terminalRouter(config)# router ospf 123 Router(config-router)# bfd all-interfacesRouter(config-router)# endThe following example shows how to enable BFD for all EIGRP neighbors, using the bfd Command inaddress family interface configuration mode:Router> enableRouter# configure terminalRouter(config)# router eigrp my_eigrpUsage GuidelinesExamples RIP Commandsbfd all-interfaces Cisco IOS IP routing .

9 RIP Command Reference 9 Router(config-router)# address family ipv4 autonomous-system 100 Router(config-router-af)# af-interface FastEthernet 0/0 Router(config-router-af)# bfdThe following example shows how to enable BFD for all routing Information Protocol (RIP) neighbors:Router> enableRouter# configure terminalRouter(config)# router ripRouter(config-router)# bfd all-interfacesRouter(config-router)# endThe following example shows how to enable IPv6 BFD for all IS-IS neighbors, in address family interfaceconfiguration mode:Router> enableRouter# configure terminalRouter(config)# router isisRouter(config-router)# address family ipv6 Router(config-router-af)# bfd all-interfacesRouter(config-router-af)# endCommandDescriptionbfdSets the baseline BFD session parameters on CommandsRIP Commands bfd all-interfaces Cisco IOS IP routing : RIP Command Reference10 default-information originate (RIP)To generate a default route into routing Information Protocol (RIP), use the default-informationoriginate Command in router configuration mode.

10 To disable this feature, use the no form of originate [on-passive | route-map map-name]no default-information originateon-passive(Optional) Sends default routes only on RIP map-name(Optional) Specifies that the routing process willgenerate the default route if the route map default routes are generated into configuration (config-router) Command was Command is supported in the Cisco IOSR elease train. Support in a specific of this train depends on your feature set,platform, and platform (2)SThis Command was modified. The on-passivekeyword was route map referenced in the default-information originate Command cannot use an extended accesslist; it can use a standard access you configure the default-information originate on-passive Command , RIP sends the default routeon a passive interface.