Asante Technologies 35516 user manual Configuring RIP, Enable RIP, Allow Unicast Updates for RIP

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5.4 Configuring RIP

The Routing Information Protocol (RIP) is a commonly used interior gateway protocol (IGP) created for use in small, homogeneous networks. It is a distance-vector routing protocol, documented in RFC 1058.

RIP uses broadcast User Datagram Protocol (UDP) data packets to exchange routing information. The IC35516 sends, or advertises, routing information updates every 30 seconds. If a router does not receive an update from another router for 180 seconds or more, it will mark the routes served by the non-updating router as being unusable. If there is still no update after another 120 seconds, the router will remove all routing table entries for the non-updating router.

RIP uses the metric hop count to rate the value of different routes. The hop count is the number of routers that can be traversed in a route. A directly connected network has a metric of zero; an unreachable network has a metric of 16. This makes RIP an unsuitable routing protocol for large networks with many routers.

A router that is running RIP can receive a default network via an update from another router that is running RIP, or the router can source the default network itself with RIP. In both cases, the default network is advertised to other RIP neighbors. RIP sends updates to the interfaces in the specified networks. If an interface's network is not specified, it will not be advertised in any RIP update. The IC35516 supports RIP Version 2.

5.4.1 Enable RIP

RIP must be enabled before carrying out any other of the RIP commands. To enter router configuration mode for RIP, start in global configuration mode and enter the following command(s):

Router(config)#

Router(config)# router rip

Router(config-rip-router)#

The network command enables RIP interfaces between certain numbers of a special network address. For example, if the network for 10.0.0.0/24 is RIP enabled, this would result in all the addresses from 10.0.0.0 to 10.0.0.255 being enabled for RIP.

Command

Purpose

router rip

Enable a RIP routing process, which places you in router

 

configuration mode.

network {IP prefix}

Associate a network with a RIP routing process.

5.4.2 Allow Unicast Updates for RIP

Because RIP is normally a broadcast protocol, in order for RIP routing updates to reach non-broadcast networks, it is necessary to establish a direct link between routers. Use the following command in router configuration mode.

Command

Purpose

neighbor ip-address

Define a neighboring router with which to exchange routing

 

information.

To control the set of interfaces with which you want to exchange routing updates, you can disable the sending of routing updates on specified interfaces by configuring the passive-interfacecommand.

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Contents IntraCore 35516 Series IntraCore 35516 Series Technical SupportTable of Contents Page Features IntroductionPackage Contents LEDsFront and Back Panel Descriptions GbicManagement and Configuration Console InterfaceHardware Installation and Setup Installation OverviewSafety Overview Recommended Installation ToolsInstallation into an Equipment Rack Power RequirementsEnvironmental Requirements Cooling and AirflowInstalling a Gbic Gigabit Interface ConvertersInstalling the Optional Emergency Power Supply Removing a GbicGbic Care and Handling System Information System up since 103443 Fri Feb 071 10/100/1000BaseT Ports Cabling Procedures Connecting PowerConnecting to the Network Connecting to a Console SetupGigabit Ethernet Ports Cabling Procedures User Access Verification Password Setting Passwords Unencrypted cleartext line passwordSpecifies an Unencrypted line password will follow Specifies a Hidden line password will followRouterconfig-if-veth1# Configuring an IP AddressSetting a Default IP Gateway Address Routerconfig# boot system flash bank1bank2 Restoring Factory DefaultsSystem Boot Parameters Understanding the Command Line Interface CLI User Top User Exec ModeAccess Each Command Mode Command Show ? PurposeCommand Purpose Privileged Top Privileged Exec ModeRouter enable Password Router# Command Exit end Ctrl-Z Purpose Global Configuration ModeCommand Purpose Router# configure terminal Interface Configuration Mode Router Configuration Mode Route-Map Configuration ModeAdvanced Features Supported within the Command Mode Command Help PurposeChecking Command Syntax Routerconfig# hostname ? Word This systems network nameRouterconfig# routed rip Invalid input detected at marker Routerconfig# route Ambiguous command. Routerconfig#Using CLI Command History Using the No and Default Forms of CommandsUsing Command-Line Editing Features and Shortcuts Routerconfig# router Command incomplete. Routerconfig#Moving Around on the Command Line Completing a Partial Command NameRouter# confTab Router# configure Keystrokes PurposeEditing Command Lines that Wrap Router# co? configure copy Router# coDeleting Entries Keystrokes Purpose Press the Delete or BackspaceRedisplaying the Current Command Line Scrolling Down a Line or a ScreenTransposing Mistyped Characters Controlling CapitalizationPasswords and Privileges Commands Enable PasswordPassword Routerconfig-line# password AsanteService Password-Encryption Managing the System and Configuration Files Setting the System ClockChanging the Password Managing the SystemEnable the System Log Displaying the Operating ConfigurationTrace Packet Routes Test Connections with Ping TestsManaging Configuration Files Configuring from the TerminalConfiguration to Nvram Routerconfig# hostname newname Newnameconfig# endCopying Configuration Files to a Network Server Configuring Snmp and Spanning Tree Configuring Snmp SupportRunning-config Startup-configConfiguring Spanning Tree Protocol STP Create or Modify Access Control for Snmp CommunityRouterconfig# duplicate-ip detect Disable the Snmp ProtocolForward Time Hello TimeMaximum Age PriorityRouterconfig# mac-address-table aging-time MAC Address TablePort Priority Port Path CostConfiguring IP Configuring IP AddressingAssign IP Addresses to Network Interfaces Class Address or Range StatusCidr Prefix Class C Equivalent Host Addresses Command PurposeAssign Multiple IP Addresses to Network Interfaces Establish Address Resolution Configuring IP RoutingDefine a Static ARP Cache SecondaryConfiguring Static Routes Route Source Default DistanceConfiguring RIP Enable RIPAllow Unicast Updates for RIP Neighbor ip-addressRedistribute Routing Information Command Purpose Route-map map-tagdeny permit sequenceSpecify a RIP Version Set Administrative Distance Set Metrics for Redistributed RoutesFiltering Routing Information Generate a Default RouteSuppress Routing Updates through an Interface Adjust Timers Enable or Disable Split-horizonManage Authentication Keys Command Purpose Offset-list access-list-name in outConfiguring IP Multicast Routing Monitor and Maintain RIPPurpose Ip igmp query-interval 1-65535 seconds Configuring IgmpModifying the Igmp Host-Query Message Interval Command Configuring the Router as a Statically Connected MemberChanging the Igmp Version SecondsConfiguring Dvmrp Nbr-timeout 35-8000 secondsDefault value 180 seconds Command Purpose Route-expire-time 20-4000 secondsDefault value 200 seconds Report-intervalUsing Access Lists Create a Standard Access ListCreate an Expanded Access List Destination address to match. e.gCreating an Access List with a Name Applying an Access List to an InterfaceOperator equal to Operator greater thenConfiguring Ospf Enable OspfConfigure ABR Type Command Purpose Router ospf StepConfigure Ospf Network Type Configure CompatibilityConfigure Ospf Interface Parameters Configure Ospf for Non-broadcast Networks Configure Area ParametersConfigure Ospf Not So Stubby Area Nssa Command Purpose Neighbor ip-address priority numberConfigure Route Summarization between Ospf Areas Command Purpose Area area-idvirtual-link router-idhelloCreate Virtual Links Not-advertisedControl Default Metrics Configure Route Calculation TimersRefresh Timer Configuration Redistribute Routes into OspfChange the Ospf Administrative Distances Prevent Routes from being Advertised in Routing UpdatesCommand Purpose Distance ospf external distance1 inter-area Suppress Routes on an InterfaceRouter ip-address NameVrrp Configuration Virtual Router Redundancy Protocol VrrpConfiguring Icmp Router Discovery Protocol Irdp Enable Irdp ProcessingMonitoring and Maintaining the Network Change Irdp ParametersCommand Purpose Show arp interface Show access-lists access-listShow ip prefix-list prefix-list-name Show ip irdpVlan Configuration Creating or Modifying a VlanDeleting a Vlan Routerconfig# interface veth2 vlan Routerconfig-if-veth2#Routerconfig# no vlan Routerconfig# exit Router# show vlan Trunk Ieee 802.1Q Static AccessVlan Port Membership Modes Trunk allowed vlan add all except Command Purpose Routerconfig# vlan dot1q tag native3 Dot1q Tunnel Mode dot1q-tunnel Appendix A. Basic Troubleshooting Problem Possible SolutionsAppendix B. Specifications Physical CharacteristicsTechnical Support and Warranty Standards ComplianceIntraCare Warranty Statement Appendix C. FCC Compliance and Warranty StatementsFCC Compliance Statement Important Safety Instructions Page Pin Number Signal Name Appendix D. Console Port Pin OutsAppendix E. Online Warranty Registration
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