Avaya Configuring IP, ARP, RIP, and OSPF Services User Manual

Configuring IP, ARP, RIP, and OSPF ServicesPart No. 117356-E Rev 00April 1999BayRS Version 13.20Site Manager Software Version 7.20 BCC Version 4.20

x117356-E Rev 00Configuring an Area Border Router ...6-52Configuring a Vir

Configuring IP, ARP, RIP, and OSPF Services3-38117356-E Rev 00To configure broadcast and multicast addresses to be used by the frame relay switch, com

Configuring and Customizing IP117356-E Rev 003-39 When IP flushes a route from the routing table, it also removes the route from the forwarding tables

Configuring IP, ARP, RIP, and OSPF Services3-40117356-E Rev 00Using Site ManagerTo set the maximum number of entries allowed in the forwarding table,

Configuring and Customizing IP117356-E Rev 003-41 • Specify (for a server) the duration for which the registration is valid.Using the BCCTo set parame

Configuring IP, ARP, RIP, and OSPF Services3-42117356-E Rev 00Using Site ManagerTo set parameters for an ATM logical IP subnet, complete the following

Configuring and Customizing IP117356-E Rev 003-43 Deleting IP from an InterfaceTo delete IP from an interface, complete the following tasks:Site Manag

Configuring IP, ARP, RIP, and OSPF Services3-44117356-E Rev 00Configuring an Adjacent Host AddressAn adjacent host is a device on a locally attached n

Configuring and Customizing IP117356-E Rev 003-45 Table 3-4. BCC Adjacent Host ParametersParameter Value/Default Descriptionstate enabled (default)dis

Configuring IP, ARP, RIP, and OSPF Services3-46117356-E Rev 00Using Site ManagerTo associate the IP address of an adjacent host with its physical addr

Configuring and Customizing IP117356-E Rev 003-47 Defining a Static RouteA static route is a manually configured route that specifies the transmission

117356-E Rev 00xiAppendix C Import and Export Route FiltersRIP Import Filters ...

Configuring IP, ARP, RIP, and OSPF Services3-48117356-E Rev 00Using the BCCTo define a static route, navigate to the global IP prompt (for example, bo

Configuring and Customizing IP117356-E Rev 003-49 For example, the following command line configures a static route to destination 3.2.4.5/255.255.0.0

Configuring IP, ARP, RIP, and OSPF Services3-50117356-E Rev 00Using Site ManagerTo define a static route, complete the following tasks:cost 1 (default

Configuring and Customizing IP117356-E Rev 003-51 Defining a Static Default RouteIf IP receives a data packet with a destination address that it is un

Configuring IP, ARP, RIP, and OSPF Services3-52117356-E Rev 00If the router loses connectivity to network 192.32.3.0, one of the networks in the super

Configuring and Customizing IP117356-E Rev 003-53 Enabling and Disabling Router DiscoveryYou can use Site Manager to enable and disable Router Discove

Configuring IP, ARP, RIP, and OSPF Services3-54117356-E Rev 00Specifying a Minimum Time Interval Between AdvertisementsYou can use Site Manager to spe

Configuring and Customizing IP117356-E Rev 003-55 Configuring the Lifetime of Advertised AddressesYou can use Site Manager to specify the maximum leng

117356-E Rev 004-1 Chapter 4Configuring Address ResolutionYou configure address resolution by setting parameters as described under the following topi

Configuring IP, ARP, RIP, and OSPF Services4-2117356-E Rev 00Enabling and Disabling Global ARPARP is configured and enabled on the router at startup.

Configuring Address Resolution117356-E Rev 004-3 Customizing Global ARP CharacteristicsYou can use Site Manager to do the following:• Control how ARP

Configuring IP, ARP, RIP, and OSPF Services4-4117356-E Rev 00Selecting an Address Resolution Scheme for an IP InterfaceIn addition to ARP, IP supports

Configuring Address Resolution117356-E Rev 004-5 By default, ARP is enabled on the interface. You can use the BCC or Site Manager to specify an addres

Configuring IP, ARP, RIP, and OSPF Services4-6117356-E Rev 00Selecting an Encapsulation Option for ARP and ProbeIf you select ARP, Probe, or ARP/Probe

Configuring Address Resolution117356-E Rev 004-7 Enabling Proxy ARP on an InterfaceProxy ARP allows a router to answer a local ARP request for a remot

Configuring IP, ARP, RIP, and OSPF Services4-8117356-E Rev 00With Proxy ARP enabled, the router responds with an ARP reply if there is a valid route (

Configuring Address Resolution117356-E Rev 004-9 Using Site ManagerTo enable or disable Proxy ARP, complete the following tasks:Timing Out Entries in

Configuring IP, ARP, RIP, and OSPF Services4-10117356-E Rev 00Using the BCCTo enable or disable the ARP cache timeout feature, navigate to the IP inte

Configuring Address Resolution117356-E Rev 004-11 5. Set the Host Cache parameter. Click on Help or see the parameter description on page A-9.6. Click

117356-E Rev 00xiiiFiguresFigure 1-1. Network and Host Portions of IP Addresses ...1-3Figure 1-2. Supernet Ad

117356-E Rev 005-1 Chapter 5Customizing RIP ServicesYou customize the Routing Information Protocol (RIP) by setting RIP parameters as described under

Configuring IP, ARP, RIP, and OSPF Services5-2117356-E Rev 00Setting the RIP DiameterThe RIP diameter is a hop count that RIP uses to denote infinity.

Customizing RIP Services117356-E Rev 005-3 Customizing a RIP InterfaceWhen you add RIP to an IP interface, RIP is enabled with default values for all

Configuring IP, ARP, RIP, and OSPF Services5-4117356-E Rev 00For example, the following command disables RIP on IP interface 2.2.2.2:rip/2.2.2.2# stat

Customizing RIP Services117356-E Rev 005-5 In both Version 2 modes, RIP checks for a password on all received updates (see “Supplying a Default Route

Configuring IP, ARP, RIP, and OSPF Services5-6117356-E Rev 00Authenticating the Password on a Version 2 UpdateBy default, RIP running in Version 2 mod

Customizing RIP Services117356-E Rev 005-7 To specify a password, enter:authentication <password>For example, the following command sequence ena

Configuring IP, ARP, RIP, and OSPF Services5-8117356-E Rev 00Supplying RIP Updates on an InterfaceBy default, RIP supplies RIP updates to neighboring

Customizing RIP Services117356-E Rev 005-9 Specifying the Update ModeRIP can issue routing updates in the following modes:• Poisoned reverse (the defa

Configuring IP, ARP, RIP, and OSPF Services5-10117356-E Rev 00Using the BCCTo specify the RIP update mode, navigate to a RIP interface prompt (for exa

Customizing RIP Services117356-E Rev 005-11 Sending Triggered UpdatesRIP generates full routing updates at regular intervals. You can also configure R

Configuring IP, ARP, RIP, and OSPF Services5-12117356-E Rev 00Using Site ManagerTo enable or disable triggered updates, complete the following tasks:S

Customizing RIP Services117356-E Rev 005-13 Using the BCCTo specify a time-to-live value, navigate to a RIP interface prompt (for example, box; eth 2/

Configuring IP, ARP, RIP, and OSPF Services5-14117356-E Rev 00Receiving RIP Updates on an InterfaceBy default, RIP listens for routing updates on ever

Customizing RIP Services117356-E Rev 005-15 Using Site ManagerTo specify whether RIP listens for routing updates, complete the following tasks:Supplyi

Configuring IP, ARP, RIP, and OSPF Services5-16117356-E Rev 00Using the BCCTo specify whether an interface can supply or generate a default route, nav

Customizing RIP Services117356-E Rev 005-17 Listening for a Default RouteBy default, RIP ignores inbound advertisements of a default route (0.0.0.0) o

Configuring IP, ARP, RIP, and OSPF Services5-18117356-E Rev 00Configuring a RIP Interface for Dial-Optimized RoutingDial-optimized routing is a method

Customizing RIP Services117356-E Rev 005-19 Using the BCCTo specify the frequency at which RIP generates a full update, navigate to a RIP interface pr

117356-E Rev 00xvTablesTable 1-1. Network Classes and IP Addresses ...1-2Table 1-2. Subnet Masks

Configuring IP, ARP, RIP, and OSPF Services5-20117356-E Rev 00Specifying a Timeout PeriodBy default, RIP waits 90 seconds for an update from a network

Customizing RIP Services117356-E Rev 005-21 Specifying a Holddown PeriodWhen RIP determines that a network is unreachable, RIP continues to advertise

Configuring IP, ARP, RIP, and OSPF Services5-22117356-E Rev 00Using Site ManagerTo specify the holddown period, complete the following tasks:Specifyin

Customizing RIP Services117356-E Rev 005-23 Deleting RIP from an InterfaceTo delete RIP from an interface, complete the following tasks:4. Click on th

Configuring IP, ARP, RIP, and OSPF Services5-24117356-E Rev 00Configuring RIP Accept and Announce PoliciesRIP accept policies and announce policies al

Customizing RIP Services117356-E Rev 005-25 Using the BCCTo define a new policy, navigate to the RIP global prompt (for example, box; ip; rip) and ent

Configuring IP, ARP, RIP, and OSPF Services5-26117356-E Rev 00For example, the following command sets the state to disabled for RIP accept policy pol_

Customizing RIP Services117356-E Rev 005-27 Using Site ManagerTo create an accept policy, complete the following tasks:Site Manager ProcedureYou do th

Configuring IP, ARP, RIP, and OSPF Services5-28117356-E Rev 00Supplying Modification Values for a RIP Accept PolicyYou can use the BCC or Site Manager

Customizing RIP Services117356-E Rev 005-29 Using Site ManagerTo specify a modification value to an update that matches a policy, complete the followi

xvi117356-E Rev 00Table E-4. Area Border Router 4 ... E-6Table E-5. Intern

Configuring IP, ARP, RIP, and OSPF Services5-30117356-E Rev 00For example, the following command specifies RIP interface 2.2.3.3 on this router as a m

Customizing RIP Services117356-E Rev 005-31 Defining a RIP Announce PolicyTo define a new RIP announce policy, you must do the following:• Supply a na

Configuring IP, ARP, RIP, and OSPF Services5-32117356-E Rev 00To customize the default values for the policy, enter:<parameter> <value>par

Customizing RIP Services117356-E Rev 005-33 Supplying Modification Values for a RIP Announce PolicyYou can use the BCC or Site Manager to supply a val

Configuring IP, ARP, RIP, and OSPF Services5-34117356-E Rev 00For example, the following command sequence specifies an override metric of 5 for routes

Customizing RIP Services117356-E Rev 005-35 Specifying Matching Criteria for a RIP Announce PolicyYou can use the BCC or Site Manager to specify match

Configuring IP, ARP, RIP, and OSPF Services5-36117356-E Rev 00ospf-type any (default)type1type2externalinternalSpecifies which types of OSPF routes ma

Customizing RIP Services117356-E Rev 005-37 egp-gateway* List of IP addressesSpecifies the IP address of one or more EGP gateways. This policy applies

Configuring IP, ARP, RIP, and OSPF Services5-38117356-E Rev 00Using Site ManagerTo specify matching criteria for a RIP announce policy, complete the f

Customizing RIP Services117356-E Rev 005-39 7. Set the following parameters:•Networks•Route Source •External Route Source •Advertise •From RIP Gateway

117356-E Rev 00xvii PrefaceThis guide describes Internet Protocol (IP) services and what you do to start and customize IP services on a Bay Networks®

117356-E Rev 006-1 Chapter 6Customizing OSPF ServicesYou customize OSPF by setting OSPF parameters as described under the following topics:Topic PageC

Configuring IP, ARP, RIP, and OSPF Services6-2117356-E Rev 00Customizing OSPF Global ParametersOSPF global parameters affect the way OSPF runs on the

Customizing OSPF Services117356-E Rev 006-3 Enabling and Disabling OSPF on the RouterWhen you start OSPF on the router, OSPF is automatically enabled.

Configuring IP, ARP, RIP, and OSPF Services6-4117356-E Rev 00Supplying an OSPF Router IDEach router configured with OSPF has an OSPF router ID. This I

Customizing OSPF Services117356-E Rev 006-5 Configuring the Soloist and Backup Soloist on a SlotThe OSPF protocol is implemented as a soloist -- that

Configuring IP, ARP, RIP, and OSPF Services6-6117356-E Rev 00To maintain a copy of the LSDB for the backup soloist, navigate to the global OSPF prompt

Customizing OSPF Services117356-E Rev 006-7 Enabling the Boundary FunctionAn OSPF boundary router does the following:1. Receives information about rou

Configuring IP, ARP, RIP, and OSPF Services6-8117356-E Rev 00Configuring the Metric Type for an ASE AdvertisementEach ASE that a boundary router injec

Customizing OSPF Services117356-E Rev 006-9 Figure 6-1. OSPF ASE RoutesBy default, an OSPF boundary router generates a type 2 metric for BGP, EGP, and

Configuring IP, ARP, RIP, and OSPF Servicesxviii117356-E Rev 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >

Configuring IP, ARP, RIP, and OSPF Services6-10117356-E Rev 00Using the BCC or Site Manager, you can configure a boundary router to use the route weig

Customizing OSPF Services117356-E Rev 006-11 Choosing a Tag Generation Method for an ASE AdvertisementAn OSPF AS external route advertisement includes

Configuring IP, ARP, RIP, and OSPF Services6-12117356-E Rev 00Figure 6-2. AS External Route TagYou can use the BCC or Site Manager to choose the tag g

Customizing OSPF Services117356-E Rev 006-13 Using the BCCTo set the tag generation method for ASE advertisements, navigate to the global OSPF prompt

Configuring IP, ARP, RIP, and OSPF Services6-14117356-E Rev 00Setting the Holddown TimerThe holddown timer controls how often OSPF calculates a route.

Customizing OSPF Services117356-E Rev 006-15 Configuring Message LoggingOSPF maintains a primary log and a backup log for OSPF messages. By default, O

Configuring IP, ARP, RIP, and OSPF Services6-16117356-E Rev 00Using the BCCTo specify the messages that OSPF writes to the primary log, navigate to th

Customizing OSPF Services117356-E Rev 006-17 Configuring External Route PreferenceBy default, when OSPF receives multiple AS external LSAs for the sam

Configuring IP, ARP, RIP, and OSPF Services6-18117356-E Rev 00Customizing OSPF on an IP InterfaceWhen you add OSPF to an IP interface, OSPF is configu

Customizing OSPF Services117356-E Rev 006-19 Enabling and Disabling OSPF on an InterfaceWhen you add OSPF to an IP interface, OSPF is automatically en

Preface117356-E Rev 00xix AcronymsThis guide uses the following acronyms:italic text Indicates file and directory names, new terms, book titles, and v

Configuring IP, ARP, RIP, and OSPF Services6-20117356-E Rev 00Configuring an Area IDIn an AS that contains multiple areas, each OSPF interface is conf

Customizing OSPF Services117356-E Rev 006-21 Specifying the Interface TypeOSPF supports the following types of interfaces: • Broadcast. An interface c

Configuring IP, ARP, RIP, and OSPF Services6-22117356-E Rev 00By default, OSPF assumes that the interface is attached to a broadcast network. You can

Customizing OSPF Services117356-E Rev 006-23 Using Point-to-Multipoint Interfaces in a Star TopologyThe Bay Networks proprietary point-to-multipoint s

Configuring IP, ARP, RIP, and OSPF Services6-24117356-E Rev 00Running OSPF with point-to-multipoint network interfaces addresses two problems: how to

Customizing OSPF Services117356-E Rev 006-25 Specifying Router Priority for a Multiaccess NetworkThe router priority value is used in multiaccess netw

Configuring IP, ARP, RIP, and OSPF Services6-26117356-E Rev 00Using Site ManagerTo specify a router priority value, complete the following tasks:Estim

Customizing OSPF Services117356-E Rev 006-27 Using Site ManagerTo change the transit delay value, complete the following tasks:Setting the Retransmit

Configuring IP, ARP, RIP, and OSPF Services6-28117356-E Rev 00You can use the BCC or Site Manager to specify a retransmit interval.Using the BCCTo set

Customizing OSPF Services117356-E Rev 006-29 Setting the Hello IntervalThe Hello interval specifies how often the router sends Hello messages on the i

ii117356-E Rev 00Bay Networks, Inc.4401 Great America ParkwaySanta Clara, CA 95054Copyright © 1999 Bay Networks, Inc.All rights reserved. Printed in t

Configuring IP, ARP, RIP, and OSPF Servicesxx117356-E Rev 00BGP Border Gateway ProtocolBR border routerCIDR classless interdomain routingDVMRP Distanc

Configuring IP, ARP, RIP, and OSPF Services6-30117356-E Rev 00Using Site ManagerTo set the Hello interval, complete the following tasks:Setting the De

Customizing OSPF Services117356-E Rev 006-31 You can use the BCC or Site Manager to specify a dead interval.Using the BCCTo set a dead interval, navig

Configuring IP, ARP, RIP, and OSPF Services6-32117356-E Rev 00Setting the Poll Interval for NBMA NeighborsThe poll interval is the largest number of s

Customizing OSPF Services117356-E Rev 006-33 Specifying the Metric CostFor OSPF, the best path is the one that offers the least-cost metric.You must c

Configuring IP, ARP, RIP, and OSPF Services6-34117356-E Rev 00Table 6-6 lists the suggested values for the metric cost parameter by network type or bi

Customizing OSPF Services117356-E Rev 006-35 Using Site ManagerTo specify a metric cost, complete the following tasks:Specifying the MTU SizeOSPF reco

Configuring IP, ARP, RIP, and OSPF Services6-36117356-E Rev 00Using the BCCTo specify the MTU size, navigate to an OSPF interface prompt (for example,

Customizing OSPF Services117356-E Rev 006-37 Configuring a Neighbor on an NBMA InterfaceIn a nonbroadcast multi-access network, neighbors are not lear

Configuring IP, ARP, RIP, and OSPF Services6-38117356-E Rev 00Deleting OSPF from an IP InterfaceTo delete OSPF from an interface on which it is curren

Customizing OSPF Services117356-E Rev 006-39 Defining an AreaYou define an OSPF area by setting parameters as described under the following topics:Sup

Preface117356-E Rev 00xxi Related PublicationsFor more information about IP services, refer to the following publications:•BCC show Commands for IP Se

Configuring IP, ARP, RIP, and OSPF Services6-40117356-E Rev 00For example, the following command sequence creates OSPF area 0.0.0.0 and displays area

Customizing OSPF Services117356-E Rev 006-41 Disabling and Reenabling an AreaWhen you define an OSPF area, the area is automatically enabled. You can

Configuring IP, ARP, RIP, and OSPF Services6-42117356-E Rev 00Configuring AuthenticationOSPF provides a measure of security for an area through the us

Customizing OSPF Services117356-E Rev 006-43 Configuring a Summary RouteOSPF border routers generate summary advertisements for their attached areas.

Configuring IP, ARP, RIP, and OSPF Services6-44117356-E Rev 00Using the BCCTo configure a summary route, navigate to an OSPF area prompt (for example,

Customizing OSPF Services117356-E Rev 006-45 Configuring a Stub AreaA stub area does not import ASEs and may or may not import internal route summarie

Configuring IP, ARP, RIP, and OSPF Services6-46117356-E Rev 00Using the BCCTo configure an area as a stub, navigate to an OSPF area prompt (for exampl

Customizing OSPF Services117356-E Rev 006-47 Configuring a Not-So-Stubby Area (NSSA)An OSPF not-so-stubby area (NSSA) is similar to an OSPF stub area

Configuring IP, ARP, RIP, and OSPF Services6-48117356-E Rev 00For example, the following command sequence configures area 0.0.0.1 as an NSSA, enables

Customizing OSPF Services117356-E Rev 006-49 Using Site ManagerTo configure a not-so-stubby area (NSSA), complete the following tasks:Site Manager Pro

Configuring IP, ARP, RIP, and OSPF Servicesxxii117356-E Rev 00You can purchase Bay Networks documentation sets, CDs, and selected technical publicatio

Configuring IP, ARP, RIP, and OSPF Services6-50117356-E Rev 00Configuring an NSSA Address RangeTo implement an NSSA, you must configure at least one t

Customizing OSPF Services117356-E Rev 006-51 For example, the following command creates an NSSA address range for NSSA 0.0.0.1:area/0.0.0.1# nssa-rang

Configuring IP, ARP, RIP, and OSPF Services6-52117356-E Rev 00Configuring an Area Border RouterEach OSPF area is connected to the backbone by one or m

Customizing OSPF Services117356-E Rev 006-53 By definition, a border router has an interface to the backbone and interfaces to one or more other areas

Configuring IP, ARP, RIP, and OSPF Services6-54117356-E Rev 00Figure 6-6. Virtual Link and Transit AreaTo configure an interface to support a virtual

Customizing OSPF Services117356-E Rev 006-55 To configure a virtual backbone link, complete the following tasks:Site Manager ProcedureYou do this Syst

Configuring IP, ARP, RIP, and OSPF Services6-56117356-E Rev 00Configuring OSPF Accept and Announce PoliciesOSPF requires that all routers in a given a

Customizing OSPF Services117356-E Rev 006-57 Defining an OSPF Accept PolicyTo define a new OSPF accept policy, you must do the following:• Supply a na

Configuring IP, ARP, RIP, and OSPF Services6-58117356-E Rev 00For example, the following command sets the state to disabled for OSPF accept policy pol

Customizing OSPF Services117356-E Rev 006-59 Using Site ManagerTo create an accept policy, complete the following tasks:Site Manager ProcedureYou do t

117356-E Rev 001-1 Chapter 1IP Concepts, Terminology, and FeaturesThis chapter introduces concepts and terminology used in this guide.Topic PageIP Add

Configuring IP, ARP, RIP, and OSPF Services6-60117356-E Rev 00Specifying Matching Criteria for an OSPF Accept PolicyYou can use the BCC or Site Manage

Customizing OSPF Services117356-E Rev 006-61 For example, the following command sequence invokes a match prompt for the OSPF accept policy pol_1 and s

Configuring IP, ARP, RIP, and OSPF Services6-62117356-E Rev 00Defining an OSPF Announce PolicyTo define a new OSPF announce policy, you must do the fo

Customizing OSPF Services117356-E Rev 006-63 For example, the following command specifies a precedence value of 12 for OSPF announce policy pol_1:anno

Configuring IP, ARP, RIP, and OSPF Services6-64117356-E Rev 00Supplying Modification Values for an OSPF Announce PolicyYou can use the BCC or Site Man

Customizing OSPF Services117356-E Rev 006-65 For example, the following command sequence sets the propagate bit in type 7 LSAs of routes that match OS

Configuring IP, ARP, RIP, and OSPF Services6-66117356-E Rev 00Using Site ManagerTo specify an override value for an OSPF announce policy, complete the

Customizing OSPF Services117356-E Rev 006-67 Supplying Matching Criteria for an OSPF Announce PolicyYou can use the BCC or Site Manager to specify mat

Configuring IP, ARP, RIP, and OSPF Services6-68117356-E Rev 00bgp-next-hop* List of IP addressesSpecifies one or more IP addresses. This policy applie

Customizing OSPF Services117356-E Rev 006-69 Using Site ManagerTo specify matching criteria for an OSPF announce policy, complete the following tasks:

Configuring IP, ARP, RIP, and OSPF Services1-2117356-E Rev 00IP AddressesAn IP address consists of 32 bits that have the form network.host. The networ

Configuring IP, ARP, RIP, and OSPF Services6-70117356-E Rev 007. Set one or more of the following parameters:•Networks•Route Source •From RIP Gateway

117356-E Rev 00A-1 Appendix ASite Manager ParametersThis appendix contains the Site Manager parameter descriptions for IP, OSPF, and RIP services. You

Configuring IP, ARP, RIP, and OSPF ServicesA-2117356-E Rev 00IP ParametersIP Configuration ParametersTopic PageIP Configuration ParametersA-2IP Interf

Site Manager Parameters117356-E Rev 00A-3 Parameter: Subnet MaskPath: Select IP from the Select Protocols window and click on OK.Default: NoneOptions:

Configuring IP, ARP, RIP, and OSPF ServicesA-4117356-E Rev 00IP Interface ParametersParameter: UnNumbered Assoc AddressPath: Select IP from the Select

Site Manager Parameters117356-E Rev 00A-5 Parameter: Broadcast AddressPath: Configuration Manager > Protocols > IP > InterfacesDefault: Broad

Configuring IP, ARP, RIP, and OSPF ServicesA-6117356-E Rev 00Parameter: MTU DiscoveryPath: Configuration Manager > Protocols > IP > Interface

Site Manager Parameters117356-E Rev 00A-7 Parameter: ASBPath: Configuration Manager > Protocols > IP > InterfacesDefault: DisabledOptions: En

Configuring IP, ARP, RIP, and OSPF ServicesA-8117356-E Rev 00Parameter: Address Resolution TypePath: Configuration Manager > Protocols > IP >

Site Manager Parameters117356-E Rev 00A-9 Parameter: ProxyPath: Configuration Manager > Protocols > IP > InterfacesDefault: DisabledOptions:

IP Concepts, Terminology, and Features117356-E Rev 001-3 Figure 1-1. Network and Host Portions of IP AddressesYou specify IP addresses in dotted-decim

Configuring IP, ARP, RIP, and OSPF ServicesA-10117356-E Rev 00Parameter: Upd Xsum OnPath: Configuration Manager > Protocols > IP > Interfaces

Site Manager Parameters117356-E Rev 00A-11 Parameter: TR End StationPath: Configuration Manager > Protocols > IP > InterfacesDefault: OffOpti

Configuring IP, ARP, RIP, and OSPF ServicesA-12117356-E Rev 00Parameter: Ethernet Arp EncapsPath: Configuration Manager > Protocols > IP > In

Site Manager Parameters117356-E Rev 00A-13 Parameter: SMDS Arp Request AddressPath: Configuration Manager > Protocols > IP > InterfacesDefaul

Configuring IP, ARP, RIP, and OSPF ServicesA-14117356-E Rev 00Parameter: FRM Cast 1 DLCIPath: Configuration Manager > Protocols > IP > Interf

Site Manager Parameters117356-E Rev 00A-15 Parameter: Slot MaskPath: Configuration Manager > Protocols > IP > InterfacesDefault: Slot-mask bi

Configuring IP, ARP, RIP, and OSPF ServicesA-16117356-E Rev 00Parameter: Forward Cache SizePath: Configuration Manager > Protocols > IP > Int

Site Manager Parameters117356-E Rev 00A-17 Parameter: Unnumbered Associated AlternatePath: Configuration Manager > Protocols > IP > Interface

Configuring IP, ARP, RIP, and OSPF ServicesA-18117356-E Rev 00Parameter: ARP Server ATM Address User PartPath: Configuration Manager > Protocols &g

Site Manager Parameters117356-E Rev 00A-19 IP Global ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > GlobalDefault:

Configuring IP, ARP, RIP, and OSPF Services1-4117356-E Rev 00Subnet AddressingThe concept of subnetworks (or subnets) extends the IP addressing scheme

Configuring IP, ARP, RIP, and OSPF ServicesA-20117356-E Rev 00Parameter: ARP ForwardingPath: Configuration Manager > Protocols > IP > GlobalD

Site Manager Parameters117356-E Rev 00A-21 Parameter: Nonlocal ARP DestinationPath: Configuration Manager > Protocols > IP > GlobalDefault: D

Configuring IP, ARP, RIP, and OSPF ServicesA-22117356-E Rev 00Parameter: RIP DiameterPath: Configuration Manager > Protocols > IP > GlobalDef

Site Manager Parameters117356-E Rev 00A-23 Parameter: Estimated NetworksPath: Configuration Manager > Protocols > IP > GlobalDefault: 0Option

Configuring IP, ARP, RIP, and OSPF ServicesA-24117356-E Rev 00Parameter: Enable Default Route for SubnetsPath: Configuration Manager > Protocols &g

Site Manager Parameters117356-E Rev 00A-25 Parameter: RIP Maximum Equal Cost PathsPath: Configuration Manager > Protocols > IP > GlobalDefaul

Configuring IP, ARP, RIP, and OSPF ServicesA-26117356-E Rev 00Static Route ParametersParameter: Enable ISP Mode SupportPath: Configuration Manager >

Site Manager Parameters117356-E Rev 00A-27 Parameter: Destination IP AddressPath: Configuration Manager > Protocols > IP > Static RoutesDefau

Configuring IP, ARP, RIP, and OSPF ServicesA-28117356-E Rev 00Parameter: CostPath: Configuration Manager > Protocols > IP > Static Routes >

Site Manager Parameters117356-E Rev 00A-29 Parameter: PreferencePath: Configuration Manager > Protocols > IP > Static RoutesDefault: 16Option

IP Concepts, Terminology, and Features117356-E Rev 001-5 You construct a subnet mask as follows:• Assign a value of 1 to each of the 8, 16, or 24 bits

Configuring IP, ARP, RIP, and OSPF ServicesA-30117356-E Rev 00Adjacent Host ParametersParameter: EnablePath: Configuration Manager > Protocols >

Site Manager Parameters117356-E Rev 00A-31 Parameter: Next Hop Interface AddrPath: Configuration Manager > Protocols > IP > Adjacent HostsDef

Configuring IP, ARP, RIP, and OSPF ServicesA-32117356-E Rev 00Parameter: Remote Party Sub-AddressPath: Configuration Manager > Protocols > IP &g

Site Manager Parameters117356-E Rev 00A-33 Router Discovery ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > Router

Configuring IP, ARP, RIP, and OSPF ServicesA-34117356-E Rev 00Parameter: Maximum IntervalPath: Configuration Manager > Protocols > IP > Route

Site Manager Parameters117356-E Rev 00A-35 OSPF ParametersOSPF Global ParametersTopic PageOSPF Global ParametersA-35OSPF Interface Parameters A-40Neig

Configuring IP, ARP, RIP, and OSPF ServicesA-36117356-E Rev 00Parameter: Router IDPath: Configuration Manager > Protocols > IP > OSPF/MOSPF &

Site Manager Parameters117356-E Rev 00A-37 Parameter: Hold Down TimerPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > GlobalDef

Configuring IP, ARP, RIP, and OSPF ServicesA-38117356-E Rev 00Parameter: Backup EnablePath: Configuration Manager > Protocols > IP > OSPF/MOS

Site Manager Parameters117356-E Rev 00A-39 Parameter: Tag Generation MethodPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > Glo

Configuring IP, ARP, RIP, and OSPF Services1-6117356-E Rev 00Table 1-2 lists the range of possible subnet masks for Class B and Class C addresses, alo

Configuring IP, ARP, RIP, and OSPF ServicesA-40117356-E Rev 00OSPF Interface ParametersParameter: RFC 1583 Compatibility EnablePath: Configuration Man

Site Manager Parameters117356-E Rev 00A-41 Parameter: Area IDPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > InterfacesDefault

Configuring IP, ARP, RIP, and OSPF ServicesA-42117356-E Rev 00Parameter: Rtr PriorityPath: Configuration Manager > Protocols > IP > OSPF/MOSP

Site Manager Parameters117356-E Rev 00A-43 Parameter: Retransmit IntervalPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > Inter

Configuring IP, ARP, RIP, and OSPF ServicesA-44117356-E Rev 00Parameter: Dead IntervalPath: Configuration Manager > Protocols > IP > OSPF/MOS

Site Manager Parameters117356-E Rev 00A-45 Parameter: Metric CostPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > InterfacesDef

Configuring IP, ARP, RIP, and OSPF ServicesA-46117356-E Rev 00Parameter: MTU SizePath: Configuration Manager > Protocols > IP > OSPF/MOSPF &g

Site Manager Parameters117356-E Rev 00A-47 Neighbor Parameters for an NBMA InterfaceParameter: MTU Mismatch Detect EnablePath: Configuration Manager &

Configuring IP, ARP, RIP, and OSPF ServicesA-48117356-E Rev 00Parameter: EnablePath: Configuration Manager > Protocols > IP > OSPF/MOSPF >

Site Manager Parameters117356-E Rev 00A-49 OSPF Area ParametersParameter: OSPF AreaPath: Configuration Manager > Protocols > IP > OSPF/MOSPF

IP Concepts, Terminology, and Features117356-E Rev 001-7 Supernet AddressingA supernet is a group of networks identified by contiguous network address

Configuring IP, ARP, RIP, and OSPF ServicesA-50117356-E Rev 00Parameter: Import AS ExternPath: Configuration Manager > Protocols > IP > OSPF/

Site Manager Parameters117356-E Rev 00A-51 Parameter: Import SummariesPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > AreasDef

Configuring IP, ARP, RIP, and OSPF ServicesA-52117356-E Rev 00Parameter: NSSA Originate Def RoutePath: Configuration Manager > Protocols > IP &g

Site Manager Parameters117356-E Rev 00A-53 Area Range ParametersParameter: NSSA Def Route TypePath: Configuration Manager > Protocols > IP >

Configuring IP, ARP, RIP, and OSPF ServicesA-54117356-E Rev 00Parameter: Range MaskPath: Configuration Manager > Protocols > IP > OSPF/MOSPF

Site Manager Parameters117356-E Rev 00A-55 Parameter: StatusPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > Areas > RangesD

Configuring IP, ARP, RIP, and OSPF ServicesA-56117356-E Rev 00OSPF NSSA Range ParametersParameter: NSSA Range NetPath: Configuration Manager > Prot

Site Manager Parameters117356-E Rev 00A-57 Parameter: EnablePath: Configuration Manager > Protocols > IP > OSPF/MOSPF > NSSA RangesDefault

Configuring IP, ARP, RIP, and OSPF ServicesA-58117356-E Rev 00Parameter: StatusPath: Configuration Manager > Protocols > IP > OSPF/MOSPF >

Site Manager Parameters117356-E Rev 00A-59 OSPF Virtual Interface ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > O

117356-E Rev 00 iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the acco

Configuring IP, ARP, RIP, and OSPF Services1-8117356-E Rev 00Classless Interdomain RoutingClassless interdomain routing (CIDR) is an addressing scheme

Configuring IP, ARP, RIP, and OSPF ServicesA-60117356-E Rev 00Parameter: Retransmit IntervalPath: Configuration Manager > Protocols > IP > OS

Site Manager Parameters117356-E Rev 00A-61 Parameter: Dead IntervalPath: Configuration Manager > Protocols > IP > OSPF/MOSPF > Virtual Int

Configuring IP, ARP, RIP, and OSPF ServicesA-62117356-E Rev 00RIP ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > R

Site Manager Parameters117356-E Rev 00A-63 Parameter: RIP ListenPath: Configuration Manager > Protocols > IP > RIP InterfacesDefault: EnableO

Configuring IP, ARP, RIP, and OSPF ServicesA-64117356-E Rev 00Parameter: Default Route ListenPath: Configuration Manager > Protocols > IP > R

Site Manager Parameters117356-E Rev 00A-65 Parameter: Time to LivePath Configuration Manager > Protocols > IP > RIP InterfacesDefault: 1Optio

Configuring IP, ARP, RIP, and OSPF ServicesA-66117356-E Rev 00Parameter: Holddown TimerPath: Configuration Manager > Protocols > IP > RIP Int

Site Manager Parameters117356-E Rev 00A-67 Parameter: Triggered UpdatesPath: Configuration Manager > Protocols > IP > RIP InterfacesDefault:

Configuring IP, ARP, RIP, and OSPF ServicesA-68117356-E Rev 00Parameter: Initial Stabilization TimerPath: Configuration Manager > Protocols > IP

117356-E Rev 00B-1 Appendix BRouting Policy ParametersThis appendix contains the Site Manager parameter descriptions for accept and announce policies.

IP Concepts, Terminology, and Features117356-E Rev 001-9 Figure 1-3. Internetwork Segmented into Three Autonomous SystemsRouter5Router6Router7Router8R

Configuring IP, ARP, RIP, and OSPF ServicesB-2117356-E Rev 00Common Accept Policy ParametersParameter: EnablePath: Configuration Manager > Protocol

Routing Policy Parameters117356-E Rev 00B-3 Parameter: NetworksPath: Configuration Manager > Protocols > IP > Policy Filters > RIP > Ac

Configuring IP, ARP, RIP, and OSPF ServicesB-4117356-E Rev 00Parameter: Route PreferencePath: Configuration Manager > Protocols > IP > Policy

Routing Policy Parameters117356-E Rev 00B-5 RIP Accept Policy ParametersParameter: From GatewayPath: Configuration Manager > Protocols > IP >

Configuring IP, ARP, RIP, and OSPF ServicesB-6117356-E Rev 00OSPF Accept Policy ParametersParameter: Apply Subnet MaskPath: Configuration Manager >

Routing Policy Parameters117356-E Rev 00B-7 Common Announce Policy ParametersParameter: TagPath: Configuration Manager > Protocols > IP > Pol

Configuring IP, ARP, RIP, and OSPF ServicesB-8117356-E Rev 00Parameter: NamePath: Configuration Manager > Protocols > IP > Policy Filters >

Routing Policy Parameters117356-E Rev 00B-9 Parameter: ActionPath: Configuration Manager > Protocols > IP > Policy Filters > RIP > Anno

Configuring IP, ARP, RIP, and OSPF ServicesB-10117356-E Rev 00Parameter: Route SourcePath: Configuration Manager > Protocols > IP > Policy Fi

Routing Policy Parameters117356-E Rev 00B-11 Parameter: AdvertisePath: Configuration Manager > Protocols > IP > Policy Filters > RIP >

Configuring IP, ARP, RIP, and OSPF Services1-10117356-E Rev 00Address Resolution Protocol (ARP)The IP router needs both a physical address and an IP a

Configuring IP, ARP, RIP, and OSPF ServicesB-12117356-E Rev 00Parameter: From RIP GatewayPath: Configuration Manager > Protocols > IP > Polic

Routing Policy Parameters117356-E Rev 00B-13 Parameter: From OSPF Router IDPath: Configuration Manager > Protocols > IP > Policy Filters >

Configuring IP, ARP, RIP, and OSPF ServicesB-14117356-E Rev 00Parameter: Received OSPF TagPath: Configuration Manager > Protocols > IP > Poli

Routing Policy Parameters117356-E Rev 00B-15 Parameter: From EGP ASPath: Configuration Manager > Protocols > IP > Policy Filters > RIP >

Configuring IP, ARP, RIP, and OSPF ServicesB-16117356-E Rev 00Parameter: From BGP PeerPath: Configuration Manager > Protocols > IP > Policy F

Routing Policy Parameters117356-E Rev 00B-17 RIP Announce Policy ParametersParameter: Received BGP Next HopPath: Configuration Manager > Protocols

Configuring IP, ARP, RIP, and OSPF ServicesB-18117356-E Rev 00Parameter: Outbound InterfacesPath: Configuration Manager > Protocols > IP > Po

Routing Policy Parameters117356-E Rev 00B-19 OSPF Announce Policy ParametersParameter: OSPF TypePath: Configuration Manager > Protocols > IP >

Configuring IP, ARP, RIP, and OSPF ServicesB-20117356-E Rev 00Parameter: BGP/OSPF Automatic TagPath: Configuration Manager > Protocols > IP >

Routing Policy Parameters117356-E Rev 00B-21 Parameter: OSPF NSSA PropagatePath: Configuration Manager > Protocols > IP > Policy Filters >

IP Concepts, Terminology, and Features117356-E Rev 001-11 In Figure 1-4, the router wants to send a packet to host C but knows only host C’s IP addres

117356-E Rev 00C-1 Appendix CImport and Export Route FiltersThis appendix contains RIP and OSPF import and export route filter parameters. You can dis

Configuring IP, ARP, RIP, and OSPF ServicesC-2117356-E Rev 00Parameter: Import MaskPath: Configuration Manager > Protocols > IP > Route Filte

Import and Export Route Filters117356-E Rev 00C-3 Parameter: InterfacePath: Configuration Manager > Protocols > IP > Route Filters > RIP &

Configuring IP, ARP, RIP, and OSPF ServicesC-4117356-E Rev 00Parameter: PreferencePath: Configuration Manager > Protocols > IP > Route Filter

Import and Export Route Filters117356-E Rev 00C-5 RIP Export FiltersParameter: Import Apply MaskPath: Configuration Manager > Protocols > IP >

Configuring IP, ARP, RIP, and OSPF ServicesC-6117356-E Rev 00Parameter: Export MaskPath: Configuration Manager > Protocols > IP > Route Filte

Import and Export Route Filters117356-E Rev 00C-7 Parameter: InterfacePath: Configuration Manager > Protocols > IP > Route Filters > RIP &

Configuring IP, ARP, RIP, and OSPF ServicesC-8117356-E Rev 00OSPF Import FiltersParameter: RIP MetricPath: Configuration Manager > Protocols > I

Import and Export Route Filters117356-E Rev 00C-9 OSPF Export FiltersParameter: PreferencePath: Configuration Manager > Protocols > IP > Rout

Configuring IP, ARP, RIP, and OSPF Services1-12117356-E Rev 00Open Shortest Path First (OSPF) ProtocolThe Open Shortest Path First (OSPF) protocol is

Configuring IP, ARP, RIP, and OSPF ServicesC-10117356-E Rev 00Parameter: Export MaskPath: Configuration Manager > Protocols > IP > Route Filt

Import and Export Route Filters117356-E Rev 00C-11 Parameter: EnablePath: Configuration Manager > Protocols > IP > Route Filters > OSPF &g

Configuring IP, ARP, RIP, and OSPF ServicesC-12117356-E Rev 00Parameter: TagPath: Configuration Manager > Protocols > IP > Route Filters >

117356-E Rev 00D-1 Appendix DRoute Weight WorksheetThis appendix provides a worksheet that you can use to calculate route weights for OSPF, RIP, EGP,

Configuring IP, ARP, RIP, and OSPF ServicesD-2117356-E Rev 003.Select one route from the following list:4.Multiply the value associated with the route

Route Weight Worksheet117356-E Rev 00D-3 6.Multiply the value associated with the route by the following decimal or hexadecimal value:2097152 x ______

Configuring IP, ARP, RIP, and OSPF ServicesD-4117356-E Rev 008.Add the values you have calculated.________________________________________________The

117356-E Rev 00E-1 Appendix EIP/OSPF Configuration ExampleThe IP/OSPF configuration in Figure E-1 shows an AS divided into different types of OSPF are

Configuring IP, ARP, RIP, and OSPF ServicesE-2117356-E Rev 00Figure E-1. IP/OSPF ConfigurationFDDIF31.4F31.2F31.3.5 F31.1 F31E21128.10.2.65255.255.2

IP/OSPF Configuration Example117356-E Rev 00E-3 Tables E-1 through E-6 list nondefault configuration parameters for router 1 through router 6. Paramet

IP Concepts, Terminology, and Features117356-E Rev 001-13 OSPF NeighborsOSPF neighbors are any two routers that have an interface to the same network.

Configuring IP, ARP, RIP, and OSPF ServicesE-4117356-E Rev 00Table E-2. Area Border Router 2Site Manager Window/Parameter SettingInterface F31IP Conf

IP/OSPF Configuration Example117356-E Rev 00E-5 Table E-3. Area Border Router 3Site Manager Window/Parameter SettingInterface F31IP Configuration/IP

Configuring IP, ARP, RIP, and OSPF ServicesE-6117356-E Rev 00Table E-4. Area Border Router 4Site Manager Window/Parameter SettingInterface F31IP Conf

IP/OSPF Configuration Example117356-E Rev 00E-7 Table E-5. Internal Backbone Router 5Site Manager Window/Parameter SettingInterface F31IP Configurati

117356-E Rev 00Index-1Aaccept policiesOSPF, 6-56overview, 1-21RIP, 5-24setting maximum number, 3-13acronyms, xixaction command, 6-44Addr Mask Reply pa

Index-2117356-E Rev 00ase-metric-support command, 6-10ATM (asynchronous transfer mode), IP over, 3-40ATM ARP Mode parameter, 3-42, A-17authentication

117356-E Rev 00Index-3EE.164 address for IP interface, 3-33ecmp-method command, 3-16Enable Default Route for Subnets parameter, 3-13, A-24Enable ISP M

Index-4117356-E Rev 00IImport AS Extern parameter, 6-47, A-50Import Summaries parameter, 6-47, A-51import-summaries command, 6-46Initial Stabilization

117356-E Rev 00Index-5not-so-stubby areas (NSSA)configuring, 6-47configuring an address range, 6-50definition, 1-16NSSA Def Route Type parameter, A-53

Configuring IP, ARP, RIP, and OSPF Services1-14117356-E Rev 00Designated RoutersTo further reduce the amount of routing traffic, the Hello protocol el

Index-6117356-E Rev 00policy parameters (continued)Received EGP Gateway (announce), B-15Received on Interface (accept), B-5Received on RIP Interface (

117356-E Rev 00Index-7Ssize of routing table, estimating, 3-11Slot Mask parameter, IP interface, 2-10, A-15slot-mask command, 6-5SMDS Arp Request Addr

Index-8117356-E Rev 00type command, 6-22Type parameter, OSPF interface, 6-23, A-41UUdp Xsum On parameter, 3-33, A-10udp-checksum command, 3-32UnNumber

IP Concepts, Terminology, and Features117356-E Rev 001-15 OSPF AreasOSPF routers reduce and restrict the amount of internal and external routing infor

Configuring IP, ARP, RIP, and OSPF Services1-16117356-E Rev 00Each area has a unique ID number. (ID 0.0.0.0 is always reserved for the OSPF backbone.)

IP Concepts, Terminology, and Features117356-E Rev 001-17 OSPF Router TypesOSPF defines the following router types: • Internal router. A router with i

iv 117356-E Rev 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring IP, ARP, RIP, and OSPF Services1-18117356-E Rev 00OSPF Implementation NotesThis section provides suggestions to help you configure your OS

IP Concepts, Terminology, and Features117356-E Rev 001-19 Router Discovery ProtocolBefore a host can send IP datagrams beyond its directly attached su

Configuring IP, ARP, RIP, and OSPF Services1-20117356-E Rev 00Route WeightsRoute-weight calculation is an internal tool that IP uses to facilitate the

IP Concepts, Terminology, and Features117356-E Rev 001-21 IP Routing Policies and FiltersThe IP router allows you to control the flow of routing data

Configuring IP, ARP, RIP, and OSPF Services1-22117356-E Rev 00Every IP router maintains a table of current routing information. The routing table mana

IP Concepts, Terminology, and Features117356-E Rev 001-23 The flow of routing information between the network, the protocols, and the routing table ma

Configuring IP, ARP, RIP, and OSPF Services1-24117356-E Rev 00Periodically, the routing table manager announces routes to other routers in the network

IP Concepts, Terminology, and Features117356-E Rev 001-25 IP Traffic FiltersA traffic filter enables the router to selectively relay or drop an inboun

117356-E Rev 002-1 Chapter 2Starting IP ServicesThis chapter describes how to use the BCC and Site Manager to perform a basic configuration -- that is

117356-E Rev 00vContents PrefaceBefore You Begin ...

Configuring IP, ARP, RIP, and OSPF Services2-2117356-E Rev 00Using the BCCYou can use the BCC to start IP, RIP, OSPF, and Router Discovery. The follow

Starting IP Services117356-E Rev 002-3 Step 2: Configuring an IP InterfaceTo configure an IP interface on a physical interface, navigate to the prompt

Configuring IP, ARP, RIP, and OSPF Services2-4117356-E Rev 00Starting OSPFYou start OSPF on the router by adding OSPF to an existing IP interface.To s

Starting IP Services117356-E Rev 002-5 Using Site ManagerYou can use Site Manager to start IP, RIP, and OSPF, and to configure a circuitless IP interf

Configuring IP, ARP, RIP, and OSPF Services2-6117356-E Rev 00An IP interface is now configured with default values for all interface parameters. When

Starting IP Services117356-E Rev 002-7 Adding RIP to an IP InterfaceTo add RIP to an existing IP interface, complete the following tasks:Site Manager

Configuring IP, ARP, RIP, and OSPF Services2-8117356-E Rev 00Starting OSPFBefore you can select a protocol to run on the router, you must configure a

Starting IP Services117356-E Rev 002-9 OSPF is now running on the router and on the interface with default values for all parameters. You customize OS

Configuring IP, ARP, RIP, and OSPF Services2-10117356-E Rev 00Choosing Slots to Support the Circuitless InterfaceBy default, all slots support the IP

Starting IP Services117356-E Rev 002-11 Configuring an Unnumbered IP InterfaceIP allows you to configure an interface on a point-to-point connection w

vi117356-E Rev 00Route Weights ...1-20IP R

Configuring IP, ARP, RIP, and OSPF Services2-12117356-E Rev 00If a subnetwork on the router has the same mask as the associated address, RIP V1 will a

Starting IP Services117356-E Rev 002-13 To enable the associated address option, complete the following tasks:Site Manager ProcedureYou do this System

117356-E Rev 003-1 Chapter 3Configuring and Customizing IPYou customize IP services by setting parameters as described under the following topics:Topi

Configuring IP, ARP, RIP, and OSPF Services3-2117356-E Rev 00Customizing IP Global ParametersWhen you configure an IP interface on a slot, IP is autom

Configuring and Customizing IP117356-E Rev 003-3 Disabling and Reenabling Global IPIP is enabled on the slot by default. You can disable and reenable

Configuring IP, ARP, RIP, and OSPF Services3-4117356-E Rev 00Configuring the Router for Not-Forwarding ModeBy default, IP forwards all packets that ar

Configuring and Customizing IP117356-E Rev 003-5 Using Site ManagerTo specify the forwarding mode, complete the following tasks:Site Manager Procedure

Configuring IP, ARP, RIP, and OSPF Services3-6117356-E Rev 00Configuring Bridging on a Router in Not-Forwarding ModeBecause the IP router does not for

Configuring and Customizing IP117356-E Rev 003-7 ES > Token > Bay > FDDI > Bay Not supportedES > Token > Bay > PTP > Bay Not s

117356-E Rev 00viiDisabling and Reenabling Route Filter Support ...3-14Configuring Equal-Cost Multip

Configuring IP, ARP, RIP, and OSPF Services3-8117356-E Rev 00Bay > PPP††† > Bay Not supportedBay > Eth > Bay > Eth > ES‡‡‡ Supported

Configuring and Customizing IP117356-E Rev 003-9 Setting the Time-to-Live Value on a Source PacketEach IP data packet includes a time-to-live (TTL) va

Configuring IP, ARP, RIP, and OSPF Services3-10117356-E Rev 00Using Site ManagerTo set the TTL value, complete the following tasks:Allowing an All-Zer

Configuring and Customizing IP117356-E Rev 003-11 Using Site ManagerTo allow an all-zero or all-one subnet address, complete the following tasks:Estim

Configuring IP, ARP, RIP, and OSPF Services3-12117356-E Rev 00To preallocate memory for the routing tables, complete the following tasks:Using a Defau

Configuring and Customizing IP117356-E Rev 003-13 To allow the IP router to use a default route for unknown subnets, complete the following tasks:Spec

Configuring IP, ARP, RIP, and OSPF Services3-14117356-E Rev 00Using Site ManagerTo set the maximum number of policies, complete the following tasks:Di

Configuring and Customizing IP117356-E Rev 003-15 Using Site ManagerTo disable or reenable support for route filters, complete the following tasks:Con

Configuring IP, ARP, RIP, and OSPF Services3-16117356-E Rev 00• Destination-hash distribution based on the destination address only. IP forwards all p

Configuring and Customizing IP117356-E Rev 003-17 To specify the maximum number of equal-cost paths for OSPF, navigate to the IP global prompt (for ex

viii117356-E Rev 00Customizing Global ARP Characteristics ...4-3Selecting an Addr

Configuring IP, ARP, RIP, and OSPF Services3-18117356-E Rev 00Customizing the IP Routing Table StructureStructurally, the IP routing table consists of

Configuring and Customizing IP117356-E Rev 003-19 Specifying the Percentage of Buffers Available to ARPBy default, ARP can use 100 percent of the avai

Configuring IP, ARP, RIP, and OSPF Services3-20117356-E Rev 00Customizing an IP InterfaceAn IP network interface consists of a physical circuit config

Configuring and Customizing IP117356-E Rev 003-21 When you configure an IP interface on a circuit, the interface is enabled with default values for al

Configuring IP, ARP, RIP, and OSPF Services3-22117356-E Rev 00Configuring a Multinet InterfaceThe multinet capability allows you to assign multiple IP

Configuring and Customizing IP117356-E Rev 003-23 Disabling and Reenabling an IP InterfaceWhen you configure an IP interface on a circuit, the interfa

Configuring IP, ARP, RIP, and OSPF Services3-24117356-E Rev 00Specifying a Broadcast Address for an InterfaceIn broadcasting, the IP router transmits

Configuring and Customizing IP117356-E Rev 003-25 For example, the following command assigns broadcast address 1.1.1.1 to IP interface 2.2.2.2.ip/2.2.

Configuring IP, ARP, RIP, and OSPF Services3-26117356-E Rev 00Using the BCCTo specify the cost of an IP interface, navigate to an IP interface prompt

Configuring and Customizing IP117356-E Rev 003-27 Enabling MTU Discovery on an InterfaceA probe MTU is a request for the maximum transmission unit (MT

117356-E Rev 00ixChapter 6 Customizing OSPF ServicesCustomizing OSPF Global Parameters ...

Configuring IP, ARP, RIP, and OSPF Services3-28117356-E Rev 00Using Site ManagerTo enable or disable MTU discovery on an interface, complete the follo

Configuring and Customizing IP117356-E Rev 003-29 Using the BCCTo enable or disable ICMP address-mask reply messages, navigate to an IP interface prom

Configuring IP, ARP, RIP, and OSPF Services3-30117356-E Rev 00Disabling and Reenabling ICMP Redirect MessagesAn ICMP redirect is a message sent by the

Configuring and Customizing IP117356-E Rev 003-31 Enabling All-Subnet Broadcasting on an InterfaceAn all-subnet broadcast (ASB) datagram has a destina

Configuring IP, ARP, RIP, and OSPF Services3-32117356-E Rev 00Using Site ManagerTo enable or disable all-subnet broadcasting, complete the following t

Configuring and Customizing IP117356-E Rev 003-33 For example, the following command turns off UDP checksum processing on IP interface 2.2.2.2:ip/2.2.

Configuring IP, ARP, RIP, and OSPF Services3-34117356-E Rev 00To configure this parameter for a multinet or multigroup configuration, see Configuring

Configuring and Customizing IP117356-E Rev 003-35 Upon receiving the packet from the token ring network, the peer router strips off the RIF and contin

Configuring IP, ARP, RIP, and OSPF Services3-36117356-E Rev 00To configure source route end-station support on a per-circuit basis and choose STE or A

Configuring and Customizing IP117356-E Rev 003-37 To configure an SMDS address, complete the following tasks:Configuring a WAN Address for a Frame Rel