Avaya Configuring PPP Services Uživatelský manuál

Part No. 114068 Rev. AAugust 1996Router Software Version 11.0Site Manager Software Version 5.0Configuring PPPServices

Configuring PPP ServicesA-22 114068 Rev. AParameter: Inbound Link QualityPath: Protocols > PPP > Interfaces > LinesDefault: 90 (percent)Range

PPP Parameters114068 Rev. A A-23Parameter: CHAP SecretPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text string; maximu

Configuring PPP ServicesA-24 114068 Rev. AParameter: CHAP Periodic TimerPath: Protocols > PPP > Interfaces > LinesDefault: 0 (disabled)Option

PPP Parameters114068 Rev. A A-25Parameter: Async Control Character MapPath: Protocols > PPP > Interfaces > LinesDefault: 655360Range: 0 throu

Configuring PPP ServicesA-26 114068 Rev. AParameter: Authentication TimerPath: Protocols > PPP > Interfaces > LinesDefault: 10Range: 1 throug

114068 Rev. A B-1Appendix BDefault PPP ConfigurationThe PPP default configuration depends on which protocols you enable for theinterface. Tables B-1 and

Configuring PPP ServicesB-2 114068 Rev. ABridge Token Ring EnablePPP Mode Normal for a nonmultilink circuitMultilink for a multilink circuitMultilink

Default PPP Configuration114068 Rev. A B-3Enable PAP Fallback DisableLink Quality Protocol NonePeer Link Quality Report Timer EnableLQR Reporting Peri

114068 Rev. A C-1Appendix CPPP StatisticsTable C-1 summarizes the PPP statistics you can view from the Site ManagerStatistics Manager tool or from the

114068 Rev. A xiTablesTable 2-1. Sample Data Link Control Protocol Options ...2-2Table 2-2. Network Control P

Configuring PPP ServicesC-2 114068 Rev. AwfPppMlStatsReSeqBufferCnt Number of multilink packets currently stored inthe ReSequencing buffer poolwfPppMl

114068 Rev. A Index-1AaddressIP, remote peer 3-2AFN 2-11allow PAP reject 3-16Allow PAP Reject parameter A-24AN 2-11, 2-21AppleTalk 2-3configuring on a

Index-2 114068 Rev. AConfiguring PPP Servicesbridgingenabling on a PPP interface 3-4Ethernet 3-5FDDI 3-5Token Ring 3-5buffer 2-14bundle, multilink 2-1

Index114068 Rev. A Index-3deleting PPP 3-24dial backup 2-10, A-23dial services 2-9bandwidth-on-demand 2-10dial backup 2-10dial-on-demand 2-10identifica

Index-4 114068 Rev. AConfiguring PPP Servicesenabling on a PPP interface 2-22, 3-3IP address, remote peer 3-2IP Enable parameter A-2, B-1IPX 2-3negoti

Index114068 Rev. A Index-5Max Links parameter A-12, B-2Max Terminate-Requests parameter A-16, B-2MCT1/MCE1 2-13media, multilink 2-13MIB objects C-1mod

Index-6 114068 Rev. AConfiguring PPP ServicesPAP passwordlocal 3-15remote 3-16PAP rejectallowing 3-16parameter descriptions A-1Password Authentication

Index114068 Rev. A Index-7SSeconds between Xmit of Echo-Requestparameter A-14, B-2secret, CHAP 3-17Service synchronous line parameter 2-22setting remo

Index-8 114068 Rev. AConfiguring PPP ServiceswfPppMlStatsReasmBufferMax 3-23wfPppMlStatsReasmFails 3-23, C-1wfPppMlStatsReassmBufferCnt 3-23, C-2wfPpp

114068 Rev. A xiiiAbout This GuideThis manual describes Point-to-Point Protocol (PPP) services and guides you inconfiguring PPP parameters for your net

Configuring PPP Servicesxiv 114068 Rev. ABefore You BeginBefore using this guide, you must create and save a configuration file that containsat least on

About This Guide114068 Rev. A xvvertical line (|) Indicates that you enter only one of the parts of thecommand. The vertical line separates choices. D

Configuring PPP Servicesxvi 114068 Rev. APAP Password Authentication ProtocolRFC Request for CommentSMDS Switched Multimegabit Data ServiceSNMP Simple

114068 Rev. A xviiTechnical Support and Online ServicesTo ensure comprehensive network support to our customers and partnersworldwide, Bay Networks Cu

Configuring PPP Servicesxviii 114068 Rev. ABay Networks Customer ServiceIf you purchased your Bay Networks product from a distributor or authorizedres

Technical Support and Online Services114068 Rev. A xixBay Networks Information ServicesBay Networks Information Services provide up-to-date support in

ii 114068 Rev. A4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1988–1996 Bay Networks, Inc.All rights

Configuring PPP Servicesxx 114068 Rev. ASupport Source CDThis CD-ROM -- sent quarterly to all contracted customers -- is a complete BayNetworks Servic

Technical Support and Online Services114068 Rev. A xxiInfoFACTSInfoFACTS is the Bay Networks free 24-hour fax-on-demand service. Thisautomated system

114068 Rev. A 1-1Chapter 1Starting PPPPPP is a standard point-to-point protocol for sending data packets over serialsynchronous and asynchronous lines

Configuring PPP Services1-2 114068 Rev. AThis menu appears after you select a link or net module connector thatrequires a WAN circuit.b. Click on OK t

Starting PPP114068 Rev. A 1-3• Calculate and view line and circuit statistics• Configure authentication protocols• Set up link quality monitoring• Confi

114068 Rev. A 2-1Chapter 2PPP ConceptsThis chapter describes PPP concepts that may help you decide how to customizethe PPP parameters for your system.

Configuring PPP Services2-2 114068 Rev. APPP uses a suite of data link and network control protocols to connect peerrouters. PPP also allows peers to

PPP Concepts114068 Rev. A 2-3Routing over a PPP LinkYou can enable the following protocols over PPP interfaces:• AppleTalk• DECnet Phase IV• Internet

114068 Rev. A iiiBay Networks Software LicenseThis Software License shall govern the licensing of all software provided to licensee by Bay Networks (“

Configuring PPP Services2-4 114068 Rev. AThe protocol that you selected when you first enabled PPP on the circuit isenabled by default. You can enable

PPP Concepts114068 Rev. A 2-5For example, a Configure-Request packet may specify the link’s maximumtransmission unit (MTU) size and whether the sender

Configuring PPP Services2-6 114068 Rev. AFigure 2-2. Initializing the PPP InterfaceRouter A Router BPPP0002A1. PPP interface comes alive on network;

PPP Concepts114068 Rev. A 2-7Authenticating the PPP Link: PAP and CHAPIn the authentication phase of PPP initialization, one or both peer routers enab

Configuring PPP Services2-8 114068 Rev. AOne-Way AuthenticationOne-way authentication uses an authentication protocol on only one side of adial-up con

PPP Concepts114068 Rev. A 2-9Figure 2-3. PPP-Encapsulated FrameThe parts of the PPP frame function as follows:• The Flag field marks the beginning and

Configuring PPP Services2-10 114068 Rev. ABay Networks provides three types of dial services: dial-on-demand,bandwidth-on-demand, and dial backup. For

PPP Concepts114068 Rev. A 2-11Refer to the section “Differences between Multiline and Multilink” on page 2-16for a comparison of these features. For m

Configuring PPP Services2-12 114068 Rev. AUsing PPP MultilinkThe routers at each end of a PPP link (that is, a logical communications line) arecalled

PPP Concepts114068 Rev. A 2-13As Figure 2-4 shows, a bundle is a logical connection between two routers. Onceyou have configured a circuit for multilin

iv 114068 Rev. ABay Networks Software License(continued)9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer the So

Configuring PPP Services2-14 114068 Rev. ABalancing Traffic LoadsIn a configuration with multilink enabled, a sending router divides the outboundtraffic

PPP Concepts114068 Rev. A 2-15When you enable fragmentation, you can specify the minimum-size packet thatyou want PPP to consider fragmenting. (The de

Configuring PPP Services2-16 114068 Rev. AThe multilink feature uses the automatically enabled functions of protocolprioritization, but only for inter

PPP Concepts114068 Rev. A 2-17Monitoring PPP Link QualityTo ensure that the router can successfully transfer data, PPP monitors the qualityof the poin

Configuring PPP Services2-18 114068 Rev. AWhen you enable link quality monitoring through the Link Quality Protocol, youare turning on monitoring only

PPP Concepts114068 Rev. A 2-19Outbound average after 5 LQR periods = 100%Inbound average after 5 LQR periods = 90%Figure 2-5. Link Quality Monitoring

Configuring PPP Services2-20 114068 Rev. AData compression eliminates redundancies in data streams. When you usecompression on your network, bandwidth

PPP Concepts114068 Rev. A 2-21Asynchronous communication, on the other hand, does not rely on a clock todefine the beginning and end of a transmission.

Configuring PPP Services2-22 114068 Rev. AThe async control character map consists of 32 bits. Each bit corresponds to onecontrol character, 0x00 (the

PPP Concepts114068 Rev. A 2-23Detecting Loopback ConditionsAs part of its network integrity checking, PPP tests for a loopback condition inwhich, effe

114068 Rev. A vContentsConfiguring PPP ServicesAbout This GuideBefore You Begin ...

Configuring PPP Services2-24 114068 Rev. A-- The type of synchronous line service (MIB object ID1.3.6.1.4.1.18.3.4.5.1.18, wfSyncService) must have a

PPP Concepts114068 Rev. A 2-25Stopping the Flow of Traffic over a PPP InterfaceTo stop traffic from routing over a PPP interface, either disable the Net

114068 Rev. A 3-1Chapter 3Customizing PPPThis chapter describes how to customize and enable PPP services. It assumes youhave configured PPP on the inte

Configuring PPP Services3-2 114068 Rev. ASetting Up Remote AddressesYou can define an address and node number (depending on the requirements ofthe prot

Customizing PPP114068 Rev. A 3-3The default is 0.0.0.0, indicating that this is an unnumbered interface. You canenter any valid IP address. (For infor

Configuring PPP Services3-4 114068 Rev. AIf you want to specify an IPX node number for the remote peer to use, enter ithere. The interface uses this I

Customizing PPP114068 Rev. A 3-5Enabling BridgingBefore you can enable a particular type of encapsulated bridged traffic, you mustenable bridging on th

Configuring PPP Services3-6 114068 Rev. ASet this parameter to Disable if you do not want PPP to accept and forward TokenRing encapsulated frames.Enab

Customizing PPP114068 Rev. A 3-7Enabling Data Compression on This InterfaceIf you enabled data compression when you initially configured this interface

vi 114068 Rev. APassword Authentication Protocol ...2-7Challenge Handshake Au

Configuring PPP Services3-8 114068 Rev. ASetting Up a PPP Multilink ConnectionFor a multilink connection, you have more options.Set the PPP Mode param

Customizing PPP114068 Rev. A 3-9Configuring Multilink FragmentationFor multilink circuits that include different speed links and that may carry bothlar

Configuring PPP Services3-10 114068 Rev. AEditing PPP Line ParametersIf you change any of the parameters in the following list and you are dynamically

Customizing PPP114068 Rev. A 3-112. Reset the Enable (LCP) parameter to Enable and, if necessary, apply thechanges.Enabling Link Control on a LineThe

Configuring PPP Services3-12 114068 Rev. ASpecifying the Interval between Echo-Request PacketsThe value of the Seconds between Xmit of Echo-Request pa

Customizing PPP114068 Rev. A 3-13Specifying the Maximum Configuration Failure CountThe Max Configuration Failure Count parameter specifies the maximum nu

Configuring PPP Services3-14 114068 Rev. AYou must first specify what, if any, local authentication protocol this interfaceuses.The Local Authenticatio

Customizing PPP114068 Rev. A 3-15If the timer expires before the negotiation completes, the router drops theconnection. The default value is 10 second

Configuring PPP Services3-16 114068 Rev. ASpecifying PAP Parameters for the Remote PeerIf the remote peer does not have PAP enabled, ignore the remote

Customizing PPP114068 Rev. A 3-17Customizing CHAPThe Challenge Handshake Authentication Protocol imposes network security byrequiring that the peers s

114068 Rev. A viiConfiguring AppleTalk ...3-4Defining a Remot

Configuring PPP Services3-18 114068 Rev. ASpecifying the CHAP Authentication Challenge IntervalThe CHAP Periodic Timer parameter indicates the interva

Customizing PPP114068 Rev. A 3-19If two routers are configured for different link quality reporting periods, theynegotiate to the lower value, so that

Configuring PPP Services3-20 114068 Rev. AThe peer whose timer is enabled generates one LQR packet for each intervalspecified in the LQR Reporting Peri

Customizing PPP114068 Rev. A 3-21Specifying the Outbound Link QualityThe Outbound Link Quality parameter specifies the minimum acceptable successrate (

Configuring PPP Services3-22 114068 Rev. AIf you have a modem that requires control characters different from the default,you can build your own async

Customizing PPP114068 Rev. A 3-23• In the wfPppMlStatsEntry MIB:-- wfPppMlStatsReSeqBufferCnt is the current count of packets (notfragments) that the

Configuring PPP Services3-24 114068 Rev. A-- wfPppMlStatsExceededBufferMax indicates the number of times the sumof wfPppMlStatsReassmBufferCnt and wfP

Customizing PPP114068 Rev. A 3-25When you delete PPP globally, PPP no longer operates on the router. Be awarethat the Technician Interface software do

114068 Rev. A A-1Appendix APPP ParametersThis appendix lists the parameters for the PPP interfaces that you can configure onthe router. For each PPP pa

viii 114068 Rev. AAllowing PAP Rejection ...3-16Customizing CHAP ...

Configuring PPP ServicesA-2 114068 Rev. APPP Interface Parameter DescriptionsUse the following guidelines to configure the PPP Interface parameters. Th

PPP Parameters114068 Rev. A A-3Parameter: OSI EnablePath: Protocols > PPP > InterfacesDefault: If you enable Open Systems Interconnect (OSI) sup

Configuring PPP ServicesA-4 114068 Rev. AParameter: DECnet IV EnablePath: Protocols > PPP > InterfacesDefault: If you enable DECnet IV support w

PPP Parameters114068 Rev. A A-5Parameter: IPX EnablePath: Protocols > PPP > InterfacesDefault: If you enable Internet Packet Exchange (IPX) supp

Configuring PPP ServicesA-6 114068 Rev. AParameter: VINES EnablePath: Protocols > PPP > InterfacesDefault: If you enable VINES support when you

PPP Parameters114068 Rev. A A-7Parameter: Remote IP AddressPath: Protocols > PPP > InterfacesDefault: 0.0.0.0Options: Any valid IP addressFuncti

Configuring PPP ServicesA-8 114068 Rev. AParameter: IPX Remote Node NumberPath: Protocols > PPP > InterfacesDefault: NoneOptions: Any valid IPX

PPP Parameters114068 Rev. A A-9Parameter: AppleTalk Routing ProtocolPath: Protocols > PPP > InterfacesDefault: RTMPOptions: RTMP (Routing Table

Configuring PPP ServicesA-10 114068 Rev. AParameter: Bridge FDDIPath: Protocols > PPP > InterfacesDefault: EnableOptions: Enable| DisableFunctio

PPP Parameters114068 Rev. A A-11Parameter: PPP ModePath: Protocols > PPP > InterfacesDefault: Multilink for a dial-on-demand or bandwidth-on-dem

114068 Rev. A ixFiguresFigure 2-1. Point-to-Point Network Connection ...2-1Figure 2-2. Initiali

Configuring PPP ServicesA-12 114068 Rev. AParameter: Fragmentation Min SizePath: Protocols > PPP > InterfacesDefault: 256 (bytes)Range: 64 throu

PPP Parameters114068 Rev. A A-13PPP Line Parameter DescriptionsUse the following guidelines to configure the PPP Lines parameters. The order ofpresenta

Configuring PPP ServicesA-14 114068 Rev. AParameter: Enable (LCP)Path: Protocols > PPP > Interfaces > LinesDefault: EnableOptions: Enable| Di

PPP Parameters114068 Rev. A A-15Parameter: Echo-Reply Acceptable LossPath: Protocols > PPP > Interfaces > LinesDefault: 3 (packets)Range: 1 t

Configuring PPP ServicesA-16 114068 Rev. AParameter:Max Terminate-RequestsPath: Protocols > PPP > Interfaces > LinesDefault: 2 (packets)Range

PPP Parameters114068 Rev. A A-17Parameter: Local Authentication ProtocolPath: Protocols > PPP > Interfaces > LinesDefault: CHAP for dial serv

Configuring PPP ServicesA-18 114068 Rev. AParameter: Local PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text str

PPP Parameters114068 Rev. A A-19Parameter: Remote PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text string; maxi

Configuring PPP ServicesA-20 114068 Rev. AParameter: Enable PAP FallbackPath: Protocols > PPP > Interfaces > LinesDefault: DisableOptions: En

PPP Parameters114068 Rev. A A-21Parameter: Peer Link Quality Report TimerPath: Protocols > PPP > Interfaces > LinesDefault: EnableOptions: En