Avaya Configuring PPP Services Uživatelský manuál

BayRS Version 14.00Part No. 308639-14.00 Rev 00September 19994401 Great America ParkwaySanta Clara, CA 95054Configuring PPP Services

308639-14.00 Rev 00A-1 Appendix APPP ParametersThis appendix lists the parameters for the PPP interfaces that you can configure on the router. For eac

Configuring PPP ServicesA-2308639-14.00 Rev 00PPP Interface Parameter DescriptionsUse the following guidelines to configure the PPP Interface paramete

PPP Parameters308639-14.00 Rev 00A-3 Parameter: IP EnablePath: Protocols > PPP > InterfacesDefault: If you enable IP support when you configure

Configuring PPP ServicesA-4308639-14.00 Rev 00Parameter: XNS EnablePath: Protocols > PPP > InterfacesDefault: If you enable XNS support when you

PPP Parameters308639-14.00 Rev 00A-5 Parameter: AppleTalk EnablePath: Protocols > PPP > InterfacesDefault: If you enable AppleTalk support when

Configuring PPP ServicesA-6308639-14.00 Rev 00Parameter: Bridge EnablePath: Protocols > PPP > InterfacesDefault: If you enable the bridge when y

PPP Parameters308639-14.00 Rev 00A-7 Parameter: CCP EnablePath: Protocols > PPP > InterfacesDefault: If you enable data compression when you con

Configuring PPP ServicesA-8308639-14.00 Rev 00Parameter: Remote IP AddressPath: Protocols > PPP > InterfacesDefault: 0.0.0.0Options: Any valid I

PPP Parameters308639-14.00 Rev 00A-9 Parameter: IPX Remote Node NumberPath: Protocols > PPP > InterfacesDefault: NoneOptions: Any valid IPX node

308639-14.00 Rev 00xiFiguresFigure 2-1. Point-to-Point Network Connection ...2-2Figure 2-2. In

Configuring PPP ServicesA-10308639-14.00 Rev 00Parameter: AppleTalk Routing ProtocolPath: Protocols > PPP > InterfacesDefault: RTMPOptions: RTMP

PPP Parameters308639-14.00 Rev 00A-11 Parameter: Bridge FDDIPath: Protocols > PPP > InterfacesDefault: EnableOptions: Enable | DisableFunction:

Configuring PPP ServicesA-12308639-14.00 Rev 00Parameter: PPP ModePath: Protocols > PPP > InterfacesDefault: Multilink for a dial-on-demand or b

PPP Parameters308639-14.00 Rev 00A-13 PPP Line Parameter DescriptionsUse the following guidelines to configure the PPP Lines parameters. The order of

Configuring PPP ServicesA-14308639-14.00 Rev 00Figure A-2. Site Manager PPP Line Lists WindowParameter: Enable (LCP)Path: Protocols > PPP > Inte

PPP Parameters308639-14.00 Rev 00A-15 Parameter: Restart Timer in SecondsPath: Protocols > PPP > Interfaces > LinesDefault: 3 (seconds)Range:

Configuring PPP ServicesA-16308639-14.00 Rev 00Parameter: Max Configure-RequestsPath: Protocols > PPP > Interfaces > LinesDefault: 10 (packet

PPP Parameters308639-14.00 Rev 00A-17 Parameter: Max Configuration Failure CountPath: Protocols > PPP > Interfaces > LinesDefault: 10Range: 1

Configuring PPP ServicesA-18308639-14.00 Rev 00Parameter: Local Authentication ProtocolPath: Protocols > PPP > Interfaces > LinesDefault: CHA

PPP Parameters308639-14.00 Rev 00A-19 Parameter: Local PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text string;

Configuring PPP ServicesA-20308639-14.00 Rev 00Parameter: Remote PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any te

PPP Parameters308639-14.00 Rev 00A-21 Parameter: Enable PAP FallbackPath: Protocols > PPP > Interfaces > LinesDefault: DisableOptions: Enable

Configuring PPP ServicesA-22308639-14.00 Rev 00Parameter: Peer Link Quality Report TimerPath: Protocols > PPP > Interfaces > LinesDefault: En

PPP Parameters308639-14.00 Rev 00A-23 Parameter: Inbound Link QualityPath: Protocols > PPP > Interfaces > LinesDefault: 90 (percent)Range: 0

Configuring PPP ServicesA-24308639-14.00 Rev 00Parameter: CHAP SecretPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text

PPP Parameters308639-14.00 Rev 00A-25 Parameter: CHAP Periodic TimerPath: Protocols > PPP > Interfaces > LinesDefault: 0 (disabled)Options: A

Configuring PPP ServicesA-26308639-14.00 Rev 00Parameter: Async Control Character MapPath: Protocols > PPP > Interfaces > LinesDefault: 65536

PPP Parameters308639-14.00 Rev 00A-27 Parameter: Authentication TimerPath: Protocols > PPP > Interfaces > LinesDefault: 10Range: 1 through 10

Configuring PPP ServicesA-28308639-14.00 Rev 00Parameter: MRU Size (bytes)Path: Protocols > PPP > Interfaces > LinesDefault: 1590 (leased lin

308639-14.00 Rev 00B-1 Appendix BDefault PPP ConfigurationThe PPP default configuration depends on which protocols you enable for the interface. Table

308639-14.00 Rev 00xiiiTablesTable 1-1. PPP Configurable Functions ...1-2Table 2-1. S

Configuring PPP ServicesB-2308639-14.00 Rev 00PPP Mode Normal for a nonmultilink circuitMultilink for a multilink circuitMultilink Fragmentation Permi

Default PPP Configuration308639-14.00 Rev 00B-3 LQR Reporting Period 3 Inbound Link Quality 90Outbound Link Quality 90CHAP Secret NoneCHAP Local Name

308639-14.00 Rev 00C-1 Appendix CPPP StatisticsTable C-1 summarizes the PPP statistics you can view from the Site Manager Statistics Manager tool or f

Configuring PPP ServicesC-2308639-14.00 Rev 00wfPppMlStatsReSeqBufferMax The maximum number of multilink packets stored in the ReSequencing buffer poo

308639-14.00 Rev 00D-1 Appendix DMonitoring PPP Using the BCC show CommandThis appendix describes how to use the BCC show command to obtain PPP statis

Configuring PPP ServicesD-2308639-14.00 Rev 00show ppp alertsThe BCC show ppp alerts command displays information about PPP exception conditions.The o

Monitoring PPP Using the BCC show Command308639-14.00 Rev 00D-3 show ppp enabledThe BCC show ppp enabled command displays information about the protoc

Configuring PPP ServicesD-4308639-14.00 Rev 00show ppp ipThe BCC show ppp ip command displays information about the PPP IP configuration.The output co

Monitoring PPP Using the BCC show Command308639-14.00 Rev 00D-5 show ppp ipx name-localThe show ppp ipx name-local command displays information about

Configuring PPP ServicesD-6308639-14.00 Rev 00show ppp ipx negotiatedThe show ppp ipx negotiated command displays information about the PPP IPX negoti

Monitoring PPP Using the BCC show Command308639-14.00 Rev 00D-7 show ppp line configThe show ppp line config command displays information about the co

Configuring PPP ServicesD-8308639-14.00 Rev 00show ppp lqrThe BCC show ppp lqr command displays information about the configured PPP link quality valu

Monitoring PPP Using the BCC show Command308639-14.00 Rev 00D-9 show ppp lqr statsThe show ppp lqr stats command displays information about the PPP li

308639-14.00 Rev 00Index-1Aacronyms, xviiadding interfaces, 1-3addressIP, remote peer, 3-4AFN, 2-13allow PAP reject, 3-30Allow PAP Reject parameter, A

Index-2308639-14.00 Rev 00CHAP Local Nameidentification mechanism, 2-11CHAP parametersAllow PAP Reject, A-25, B-3CHAP Local Name, 3-31, A-24, B-3CHAP

308639-14.00 Rev 00Index-3encryption parameters, 3-13endpoint discriminator, 2-3escape characters, 2-23establishing the PPP link, 2-5Ffragmentationmin

Index-4308639-14.00 Rev 00link termination packet, 2-5LINKQR, 2-20LN, 2-13local authentication protocol, 3-25Local Authentication Protocol parameter,

308639-14.00 Rev 00Index-5OOpen Systems Interconnection, 2-4OSI, 2-4OSI Enable parameter, A-3, B-1OSI Network Layer Control Protocol, 2-4outbound link

308639-14.00 Rev 00xv PrefaceThis guide describes the point-to-point protocol (PPP) and what you do to start and customize PPP services on a Nortel Ne

Index-6308639-14.00 Rev 00Qquality monitoring and reporting, 2-20RRaise-DTR modem, 2-14receive percentagescalculating and viewing, 3-43re-enabling PPP

308639-14.00 Rev 00Index-7VINES support, enabling, 3-8Virtual Networking System (VINES), 2-4WWA N , 2- 2 2data paths, 2-12WAN Protocol synchronous lin

Configuring PPP Servicesxvi308639-14.00 Rev 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >) Indicate that

Preface308639-14.00 Rev 00xvii AcronymsThis guide uses the following acronyms:italic text Indicates file and directory names, new terms, book titles,

Configuring PPP Servicesxviii308639-14.00 Rev 00FCS Frame Check SequenceFDDI Fiber Distributed Data InterfaceHDLC high-level data link controlHSSI Hig

Preface308639-14.00 Rev 00xix Hard-Copy Technical ManualsYou can print selected technical manuals and release notes free, directly from the Internet.

ii308639-14.00 Rev 00 Copyright © 1999 Nortel NetworksAll rights reserved. Printed in the USA. September 1999.The information in this document is subj

308639-14.00 Rev 001-1 Chapter 1Starting PPP ServicesPPP is a standard point-to-point protocol for sending data packets over serial (synchronous) and

Configuring PPP Services1-2308639-14.00 Rev 00Summary of PPP ServicesYou can configure PPP to perform the functions shown in the following table. A ch

Starting PPP Services308639-14.00 Rev 001-3 Starting Configuration ToolsBefore configuring PPP services, refer to the following user guides for instru

Configuring PPP Services1-4308639-14.00 Rev 00Starting PPP ServicesWhen you add a PPP circuit, it is automatically enabled. To let data flow over this

Starting PPP Services308639-14.00 Rev 001-5 Disabling and Reenabling PPP ServicesAfter changing certain PPP line parameters, you must force renegotiat

Configuring PPP Services1-6308639-14.00 Rev 00Deleting PPP ServicesYou can delete PPP from a specific circuit by simply reconfiguring that circuit wit

Starting PPP Services308639-14.00 Rev 001-7 Using Site ManagerTo use Site Manager to delete PPP from a circuit, do the steps in the following table.Wh

308639-14.00 Rev 002-1 Chapter 2PPP ConceptsThis chapter describes PPP concepts that can help you decide how to customize PPP parameters for your syst

308639-14.00 Rev 00iiiNortel Networks NA Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using t

Configuring PPP Services2-2308639-14.00 Rev 00PPP OverviewPoint-to-Point Protocol (PPP) is a standard method of routing or bridging datagrams between

PPP Concepts308639-14.00 Rev 002-3 Table 2-1. Sample Data Link Control Protocol OptionsOption FunctionMaximum Receive Unit Specifies the maximum recei

Configuring PPP Services2-4308639-14.00 Rev 00Routing over a PPP LinkYou can enable the following protocols over PPP interfaces:•AppleTalk• DECnet Pha

PPP Concepts308639-14.00 Rev 002-5 The protocol that you selected when you first enabled PPP on the circuit is enabled by default. You can enable a di

Configuring PPP Services2-6308639-14.00 Rev 00For example, a configure-request packet may specify the link’s maximum transmission unit (MTU) size and

PPP Concepts308639-14.00 Rev 002-7 Figure 2-2 demonstrates how a PPP interface initializes.Figure 2-2. Initializing the PPP InterfaceRouter A Router B

Configuring PPP Services2-8308639-14.00 Rev 00Authenticating the PPP Link: PAP and CHAP In the authentication phase of PPP initialization, one or both

PPP Concepts308639-14.00 Rev 002-9 One-Way AuthenticationOne-way authentication uses an authentication protocol on only one side of a dial-up connecti

Configuring PPP Services2-10308639-14.00 Rev 00Datagram EncapsulationBefore transmitting data across the link, PPP encapsulates data in a frame simila

PPP Concepts308639-14.00 Rev 002-11 PPP is automatically configured on lines that you select for dial services. PPP, with either CHAP or PAP, implemen

iv308639-14.00 Rev 00for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct

Configuring PPP Services2-12308639-14.00 Rev 00PPP MultilineNortel Networks PPP services include support for the multiline feature, which lets you con

PPP Concepts308639-14.00 Rev 002-13 Multilink is available on all platforms that have more than one WAN line, including the following platforms:•BLN®/

Configuring PPP Services2-14308639-14.00 Rev 00Figure 2-4 shows a configuration that uses the multilink feature. Figure 2-4. Multilink CircuitAs Figur

PPP Concepts308639-14.00 Rev 002-15 Multilink and Multiline Compatibility with Previous VersionsA multiline circuit using PPP cannot communicate with

Configuring PPP Services2-16308639-14.00 Rev 00Using Multilink FragmentationBy default, PPP multilink allows packet fragmentation. With fragmentation

PPP Concepts308639-14.00 Rev 002-17 Packets sent over a multilink bundle have an outer header packet that contains a unique packet sequence number and

Configuring PPP Services2-18308639-14.00 Rev 00Table 2-3. Comparing Multiline and MultilinkFeature Multiline MultilinkAdvantages • Fault tolerance• Ba

PPP Concepts308639-14.00 Rev 002-19 Packet resequencingDepends on the path selection:• With address-based selection (the default), packets always arri

Configuring PPP Services2-20308639-14.00 Rev 00Monitoring PPP Link QualityTo ensure that the router can successfully transfer data, PPP monitors the q

PPP Concepts308639-14.00 Rev 002-21 For example, in Figure 2-5, the acceptable outbound and inbound link quality configured on router A for the PPP in

308639-14.00 Rev 00vContents PrefaceBefore You Begin ...

Configuring PPP Services2-22308639-14.00 Rev 00In addition to LQR packets, PPP periodically transmits echo-request packets (when echo-request is enabl

PPP Concepts308639-14.00 Rev 002-23 Synchronous Versus Asynchronous Connections When you configure a dial (switched) circuit, you can specify whether

Configuring PPP Services2-24308639-14.00 Rev 00During LCP negotiation, both peers negotiate the characters that they will recognize as modem control c

PPP Concepts308639-14.00 Rev 002-25 Configuring IP to Run over PPP InterfacesWhen you enable numbered Internet Protocol (IP) support on a PPP interfac

Configuring PPP Services2-26308639-14.00 Rev 00Stopping the Flow of Traffic over a PPP InterfaceTo stop traffic from routing over a PPP interface, eit

308639-14.00 Rev 003-1 Chapter 3Customizing PPPThis chapter describes how to customize and enable PPP services. It assumes you have configured PPP on

Configuring PPP Services3-2308639-14.00 Rev 00Enabling PPP on an InterfaceIf you have already enabled PPP on the circuit that you want to configure, g

Customizing PPP308639-14.00 Rev 003-3 For example, the following command enables IP routing on the interface with the IP address of 1.1.1.1.ip/1.1.1.1

Configuring PPP Services3-4308639-14.00 Rev 00Setting Up Remote AddressesUsing Site Manager, you can define an address and node number (depending on t

Customizing PPP308639-14.00 Rev 003-5 Defining an IPX Network Number and Node Number for a Remote PeerSite Manager lets you specify an IPX network num

vi308639-14.00 Rev 00Dial-on-Demand ...2-11Bandwidt

Configuring PPP Services3-6308639-14.00 Rev 00Configuring AppleTalkTo enable AppleTalk on the interface, use Site Manager to configure an AppleTalk no

Customizing PPP308639-14.00 Rev 003-7 Enabling Bridging on an InterfaceWhen bridging is enabled for an interface, PPP accepts bridged traffic in the s

Configuring PPP Services3-8308639-14.00 Rev 00To enable or disable bridging on this interface, do the tasks in the following table.Enabling VINES Supp

Customizing PPP308639-14.00 Rev 003-9 To enable or disable VINES support on this interface, do the tasks in the following table.Enabling DECnet IV Sup

Configuring PPP Services3-10308639-14.00 Rev 00Enabling Data Compression on This InterfaceIf you enabled data compression when you initially configure

Customizing PPP308639-14.00 Rev 003-11 This parameter enables or disables the network control protocol for IPv6. It does not enable or disable IPv6 ro

Configuring PPP Services3-12308639-14.00 Rev 00For a description of the differences between multiline and multilink connections, see “Differences Betw

Customizing PPP308639-14.00 Rev 003-13 To configure the multilink fragmentation and minimum fragment size on this interface, do the tasks in the follo

Configuring PPP Services3-14308639-14.00 Rev 00Disabling Network Control ProtocolsTo stop traffic from routing over a PPP interface, either• Disable t

Customizing PPP308639-14.00 Rev 003-15 Customizing PPP LinesThe PPP line parameters specify the characteristics of individual lines within the interfa

308639-14.00 Rev 00viiEnabling IPv6 on This Interface ...3-10Specifyi

Configuring PPP Services3-16308639-14.00 Rev 00• Max Configuration Failure Count• Local Authentication Protocol•Local PAP ID•Local PAP Password• Remot

Customizing PPP308639-14.00 Rev 003-17 Using Site ManagerDisable and then reenable the Enable (LCP) parameter. You can change as many parameters as ne

Configuring PPP Services3-18308639-14.00 Rev 00To enable the link control protocol on this interface, do the tasks in the following table.To disable L

Customizing PPP308639-14.00 Rev 003-19 Using Site ManagerTo set the restart timer on this interface, do the tasks in the following table.Specifying th

Configuring PPP Services3-20308639-14.00 Rev 00Using Site ManagerTo set the interval between transmissions of echo-request packets on this interface,

Customizing PPP308639-14.00 Rev 003-21 Using Site ManagerTo set the interval between transmissions of echo-request packets on this interface, do the t

Configuring PPP Services3-22308639-14.00 Rev 00Using Site ManagerTo set the maximum number of unacknowledged configure-request packets allowed on this

Customizing PPP308639-14.00 Rev 003-23 Using Site ManagerTo set the maximum number of unacknowledged terminate-request packets allowed on this interfa

Configuring PPP Services3-24308639-14.00 Rev 00Using Site ManagerTo set the maximum number of configure-NAK packets allowed on this interface, do the

Customizing PPP308639-14.00 Rev 003-25 Customizing PPP Authentication ParametersPPP imposes network security by offering support for two types of auth

viii308639-14.00 Rev 00Specifying the Asynchronous Modem Control Character Map ...3-37Disabling Loopback Checking

Configuring PPP Services3-26308639-14.00 Rev 00If you do not want to enable security features on this interface, accept the default, None. To enable P

Customizing PPP308639-14.00 Rev 003-27 Setting a Time Limit for AuthenticationYou can specify the maximum number of seconds the router waits for a res

Configuring PPP Services3-28308639-14.00 Rev 00Specifying Local PAP ParametersIf you did not enable PAP on the local peer, ignore the local PAP parame

Customizing PPP308639-14.00 Rev 003-29 Specifying PAP Parameters for the Remote PeerIf the remote peer does not have PAP enabled, ignore the remote PA

Configuring PPP Services3-30308639-14.00 Rev 00Allowing PAP RejectionSome peers do not use PAP. If you set the Allow PAP Reject parameter to Enable, y

Customizing PPP308639-14.00 Rev 003-31 Specifying the CHAP SecretIf you have enabled CHAP, specify the secret. There is no default value. The function

Configuring PPP Services3-32308639-14.00 Rev 00Using the BCCThe BCC does not allow you to configure these parameters.Using Site ManagerTo specify a CH

Customizing PPP308639-14.00 Rev 003-33 Setting Up Link Quality MonitoringWhen you turn on the link quality monitoring and reporting function for an in

Configuring PPP Services3-34308639-14.00 Rev 00Designating the Link Quality Report TimekeeperThis parameter deals with the remote peer, not the local

Customizing PPP308639-14.00 Rev 003-35 The default value for this parameter is 90 (percent). You can specify values in the range 1 through 100 (percen

308639-14.00 Rev 00ixshow ppp lqr ...

Configuring PPP Services3-36308639-14.00 Rev 004.Set the inbound link quality.To specify the inbound link quality, enter the following command after s

Customizing PPP308639-14.00 Rev 003-37 Using Site ManagerTo configure link quality monitoring on this PPP interface, do the tasks in the following tab

Configuring PPP Services3-38308639-14.00 Rev 00The async control character map specifies a value representing one or more asynchronous modem control c

Customizing PPP308639-14.00 Rev 003-39 Disabling Loopback CheckingFor test purposes, you can disable the loopback test that the peer normally performs

Configuring PPP Services3-40308639-14.00 Rev 00Using Site ManagerTo disable loopback checking for this line, do the tasks in the following table.Setti

Customizing PPP308639-14.00 Rev 003-41 Using Site ManagerFor leased lines, MRU is negotiated automatically, so there is no need to manually set this p

Configuring PPP Services3-42308639-14.00 Rev 00Disabling RFC 1661 ComplianceRFC 1661 compliance is enabled by default for dial lines. For leased lines

Customizing PPP308639-14.00 Rev 003-43 Viewing Line Statistics for Multilink CircuitsTo view the statistics that PPP collects for multilink circuits,

Configuring PPP Services3-44308639-14.00 Rev 00-- wfPppMlStatsTxPkts counts the total number of packets transmitted by multilink. Comparing this to th

Customizing PPP308639-14.00 Rev 003-45 Where to Go NextGo to Chapter 1 for instructions on how to start PPP on your router.Go to Chapter 2 to learn mo