Avaya Configuring PPP Services Uživatelský manuál

Part No. 303537-A Rev 00October 1998BayRS Version 13.00Site Manager Software Version 7.00 BCC Version 4.05 Configuring PPP Services

Configuring PPP ServicesA-2303537-A Rev 00PPP Interface Parameter DescriptionsUse the following guidelines to configure the PPP Interface parameters.

PPP Parameters303537-A Rev 00A-3 Parameter: IP EnablePath: Protocols > PPP > InterfacesDefault: If you enable IP support when you configure PPP

Configuring PPP ServicesA-4303537-A Rev 00Parameter: XNS EnablePath: Protocols > PPP > InterfacesDefault: If you enable XNS support when you con

PPP Parameters303537-A Rev 00A-5 Parameter: AppleTalk EnablePath: Protocols > PPP > InterfacesDefault: If you enable AppleTalk support when you

Configuring PPP ServicesA-6303537-A Rev 00Parameter: Bridge EnablePath: Protocols > PPP > InterfacesDefault: If you enable the bridge when you c

PPP Parameters303537-A Rev 00A-7 Parameter: CCP EnablePath: Protocols > PPP > InterfacesDefault: If you enable data compression when you configu

Configuring PPP ServicesA-8303537-A Rev 00Parameter: Remote IP AddressPath: Protocols > PPP > InterfacesDefault: 0.0.0.0Options: Any valid IP ad

PPP Parameters303537-A Rev 00A-9 Parameter: IPX Remote Node NumberPath: Protocols > PPP > InterfacesDefault: NoneOptions: Any valid IPX node num

Configuring PPP ServicesA-10303537-A Rev 00Parameter: AppleTalk Routing ProtocolPath: Protocols > PPP > InterfacesDefault: RTMPOptions: RTMP (Ro

PPP Parameters303537-A Rev 00A-11 Parameter: Bridge FDDIPath: Protocols > PPP > InterfacesDefault: EnableOptions: Enable | DisableFunction: Spec

303537-A Rev 00xiFiguresFigure 2-1. Point-to-Point Network Connection ...2-2Figure 2-2. Initial

Configuring PPP ServicesA-12303537-A Rev 00Parameter: PPP ModePath: Protocols > PPP > InterfacesDefault: Multilink for a dial-on-demand or bandw

PPP Parameters303537-A Rev 00A-13 PPP Line Parameter DescriptionsUse the following guidelines to configure the PPP Lines parameters. The order of pres

Configuring PPP ServicesA-14303537-A Rev 00Figure A-2. Site Manager PPP Line Lists WindowParameter: Enable (LCP)Path: Protocols > PPP > Interfac

PPP Parameters303537-A Rev 00A-15 Parameter: Restart Timer in SecondsPath: Protocols > PPP > Interfaces > LinesDefault: 3 (seconds)Range: 1 t

Configuring PPP ServicesA-16303537-A Rev 00Parameter: Max Configure-RequestsPath: Protocols > PPP > Interfaces > LinesDefault: 10 (packets)Ra

PPP Parameters303537-A Rev 00A-17 Parameter: Max Configuration Failure CountPath: Protocols > PPP > Interfaces > LinesDefault: 10Range: 1 thr

Configuring PPP ServicesA-18303537-A Rev 00Parameter: Local Authentication ProtocolPath: Protocols > PPP > Interfaces > LinesDefault: CHAP fo

PPP Parameters303537-A Rev 00A-19 Parameter: Local PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text string; max

Configuring PPP ServicesA-20303537-A Rev 00Parameter: Remote PAP IDPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text s

PPP Parameters303537-A Rev 00A-21 Parameter: Enable PAP FallbackPath: Protocols > PPP > Interfaces > LinesDefault: DisableOptions: Enable | D

Configuring PPP ServicesA-22303537-A Rev 00Parameter: Peer Link Quality Report TimerPath: Protocols > PPP > Interfaces > LinesDefault: Enable

PPP Parameters303537-A Rev 00A-23 Parameter: Inbound Link QualityPath: Protocols > PPP > Interfaces > LinesDefault: 90 (percent)Range: 0 thro

Configuring PPP ServicesA-24303537-A Rev 00Parameter: CHAP SecretPath: Protocols > PPP > Interfaces > LinesDefault: NoneOptions: Any text str

PPP Parameters303537-A Rev 00A-25 Parameter: CHAP Periodic TimerPath: Protocols > PPP > Interfaces > LinesDefault: 0 (disabled)Options: Any n

Configuring PPP ServicesA-26303537-A Rev 00Parameter: Async Control Character MapPath: Protocols > PPP > Interfaces > LinesDefault: 655360Ran

PPP Parameters303537-A Rev 00A-27 Parameter: Authentication TimerPath: Protocols > PPP > Interfaces > LinesDefault: 10Range: 1 through 1000 (

Configuring PPP ServicesA-28303537-A Rev 00Parameter: MRU Size (bytes)Path: Protocols > PPP > Interfaces > LinesDefault: 1500Options: 1 to 46

303537-A Rev 00B-1 Appendix BDefault PPP ConfigurationThe PPP default configuration depends on which protocols you enable for the interface. Table B-1

Configuring PPP ServicesB-2303537-A Rev 00PPP Mode Normal for a nonmultilink circuitMultilink for a multilink circuitMultilink Fragmentation Permitted

Default PPP Configuration303537-A Rev 00B-3 LQR Reporting Period 3 Inbound Link Quality 90Outbound Link Quality 90CHAP Secret NoneCHAP Local Name None

303537-A Rev 00xiiiTablesTable 1-1. PPP Configurable Functions ...1-2Table 2-1. Sampl

303537-A Rev 00C-1 Appendix CPPP StatisticsTable C-1 summarizes the PPP statistics you can view from the Site Manager Statistics Manager tool or from

Configuring PPP ServicesC-2303537-A Rev 00wfPppMlStatsReSeqBufferCnt Number of multilink packets currently stored in the ReSequencing buffer poolwfPpp

303537-A Rev 00D-1 Appendix DMonitoring PPP Using the BCC show CommandThis appendix describes how to use the BCC show command to obtain PPP statistica

Configuring PPP ServicesD-2303537-A Rev 00show ppp alertsThe BCC show ppp alerts command displays information about PPP exception conditions.The outpu

Monitoring PPP Using the BCC show Command303537-A Rev 00D-3 show ppp enabledThe BCC show ppp enabled command displays information about the protocols

Configuring PPP ServicesD-4303537-A Rev 00show ppp ipThe BCC show ppp ip command displays information about the PPP IP configuration.The output contai

Monitoring PPP Using the BCC show Command303537-A Rev 00D-5 show ppp ipx name-localThe show ppp ipx name-local command displays information about the

Configuring PPP ServicesD-6303537-A Rev 00show ppp ipx negotiatedThe show ppp ipx negotiated command displays information about the PPP IPX negotiated

Monitoring PPP Using the BCC show Command303537-A Rev 00D-7 show ppp line configThe show ppp line config command displays information about the config

Configuring PPP ServicesD-8303537-A Rev 00show ppp lqrThe BCC show ppp lqr command displays information about the configured PPP link quality values f

Monitoring PPP Using the BCC show Command303537-A Rev 00D-9 show ppp lqr statsThe show ppp lqr stats command displays information about the PPP link q

303537-A Rev 00Index-1Aacronyms, xviiiadding interfaces, 1-3addressIP, remote peer, 3-4AFN, 2-13allow PAP reject, 3-29Allow PAP Reject parameter, A-25

Index-2303537-A Rev 00Challenge Handshake Authentication Protocol (CHAP), 2-3, 2-8, 2-11, 3-24customizing, 3-29setting parameters, A-18, A-24use with

303537-A Rev 00Index-3EEcho-Reply Acceptable Loss parameter, A-15, B-2echo-reply packet, 2-5acceptable loss, 3-19echo-request packet, 2-5, 2-22setting

Index-4303537-A Rev 00link control protocol (continued)negotiations, configure-request, 2-5renegotiation, 3-3link control, enabling, 3-17link maintena

303537-A Rev 00Index-5network connectionnegotiating, 2-9PPP, 2-2network control protocol, 2-2disabling, 2-25, 3-13network control protocol (NCP)disabl

Index-6303537-A Rev 00protocoldata link control, 2-3network control, 2-2, 2-4protocol prioritizationdefinition, 2-17multiline and multilink, 2-17proto

303537-A Rev 00Index-7Uunnumbered interface, 3-4using PPP multilink, 2-13VV.25bis modem, 2-14V.35, 2-14VINES Enable parameter, A-6, B-1VINES Network C

303537-A Rev 00xv PrefaceThis guide describes PPP and what you do to start and customize PPP services on a Bay Networks® router.You can use the Bay Co

Configuring PPP Servicesxvi303537-A Rev 00You must also create and save a configuration file that contains at least one WAN interface, then retrieve t

Preface303537-A Rev 00xvii brackets ([ ]) Indicate optional elements in syntax descriptions. Do not type the brackets when entering the command.Exampl

Configuring PPP Servicesxviii303537-A Rev 00AcronymsBNCP Bridge Network Control ProtocolBNX Backbone Node SwitchBOFL Breath of Life (message)CCP Comp

Preface303537-A Rev 00xix Bay Networks Technical PublicationsYou can now print Bay Networks technical manuals and release notes free, directly from th

ii303537-A Rev 004401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1998 Bay Networks, Inc.All rights res

Configuring PPP Servicesxx303537-A Rev 00How to Get HelpFor product assistance, support contracts, or information about educational services, go to th

303537-A Rev 001-1 Chapter 1Starting PPP ServicesPPP is a standard point-to-point protocol for sending data packets over serial (synchronous) and asyn

Configuring PPP Services1-2303537-A Rev 00Summary of PPP ServicesYou can configure PPP to perform the functions shown in the following table. A check

Starting PPP Services303537-A Rev 001-3 Starting Configuration ToolsBefore configuring PPP services, refer to the following user guides for instructio

Configuring PPP Services1-4303537-A Rev 00Starting PPP ServicesWhen you add a PPP circuit, it is automatically enabled. To let data flow over this int

Starting PPP Services303537-A Rev 001-5 Disabling and Reenabling PPP ServicesAfter changing certain PPP line parameters, you must force renegotiation

Configuring PPP Services1-6303537-A Rev 00Deleting PPP ServicesYou can delete PPP from a specific circuit by simply reconfiguring that circuit with a

Starting PPP Services303537-A Rev 001-7 Using Site ManagerTo use Site Manager to delete PPP from a circuit, do the steps in the following table.When y

303537-A Rev 002-1 Chapter 2PPP ConceptsThis chapter describes PPP concepts that can help you decide how to customize PPP parameters for your system.

303537-A Rev 00iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the accom

Configuring PPP Services2-2303537-A Rev 00PPP OverviewPoint-to-Point Protocol (PPP) is a standard method of routing or bridging datagrams between peer

PPP Concepts303537-A Rev 002-3 Table 2-1. Sample Data Link Control Protocol OptionsOption FunctionMaximum Receive Unit Specifies the maximum receive u

Configuring PPP Services2-4303537-A Rev 00Routing over a PPP LinkYou can enable the following protocols over PPP interfaces:• AppleTalk• DECnet Phase

PPP Concepts303537-A Rev 002-5 The protocol that you selected when you first enabled PPP on the circuit is enabled by default. You can enable a differ

Configuring PPP Services2-6303537-A Rev 00For example, a configure-request packet may specify the link’s maximum transmission unit (MTU) size and whet

PPP Concepts303537-A Rev 002-7 Figure 2-2 demonstrates how a PPP interface initializes.Figure 2-2. Initializing the PPP InterfaceRouter A Router BPPP0

Configuring PPP Services2-8303537-A Rev 00Authenticating the PPP Link: PAP and CHAP In the authentication phase of PPP initialization, one or both pee

PPP Concepts303537-A Rev 002-9 One-Way AuthenticationOne-way authentication uses an authentication protocol on only one side of a dial-up connection.

Configuring PPP Services2-10303537-A Rev 00Datagram EncapsulationBefore transmitting data across the link, PPP encapsulates data in a frame similar to

PPP Concepts303537-A Rev 002-11 PPP is automatically configured on lines that you select for dial services. PPP, with either CHAP or PAP, implements a

iv303537-A Rev 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files, d

Configuring PPP Services2-12303537-A Rev 00PPP MultilineBay Networks PPP services include support for the multiline feature, which lets you configure

PPP Concepts303537-A Rev 002-13 Multilink is available on all platforms that have more than one WAN line, including the following platforms:•BLN®/BCN®

Configuring PPP Services2-14303537-A Rev 00Figure 2-4 shows a configuration that uses the multilink feature. Figure 2-4. Multilink CircuitAs Figure 2-

PPP Concepts303537-A Rev 002-15 Multilink and Multiline Compatibility with Previous VersionsA multiline circuit using PPP cannot communicate with a ro

Configuring PPP Services2-16303537-A Rev 00Using Multilink FragmentationBy default, PPP multilink allows packet fragmentation. With fragmentation enab

PPP Concepts303537-A Rev 002-17 Packets sent over a multilink bundle have an outer header packet that contains a unique packet sequence number and all

Configuring PPP Services2-18303537-A Rev 00Table 2-3. Comparing Multiline and MultilinkFeature Multiline MultilinkAdvantages • Fault tolerance• Bandwi

PPP Concepts303537-A Rev 002-19 Packet resequencingDepends on the path selection:• With address-based selection (the default), packets always arrive i

Configuring PPP Services2-20303537-A Rev 00Monitoring PPP Link QualityTo ensure that the router can successfully transfer data, PPP monitors the quali

PPP Concepts303537-A Rev 002-21 For example, in Figure 2-5, the acceptable outbound and inbound link quality configured on router A for the PPP interf

303537-A Rev 00vContentsPrefaceBefore You Begin ...

Configuring PPP Services2-22303537-A Rev 00In addition to LQR packets, PPP periodically transmits echo-request packets (when echo-request is enabled).

PPP Concepts303537-A Rev 002-23 Synchronous Versus Asynchronous Connections When you configure a dial (switched) circuit, you can specify whether you

Configuring PPP Services2-24303537-A Rev 00During LCP negotiation, both peers negotiate the characters that they will recognize as modem control chara

PPP Concepts303537-A Rev 002-25 Configuring IP to Run over PPP InterfacesWhen you enable numbered Internet Protocol (IP) support on a PPP interface, y

Configuring PPP Services2-26303537-A Rev 00Where to Go NextGo to Chapter 1 for instructions on how to start PPP on your router.Go to Chapter 3 for ins

303537-A Rev 003-1 Chapter 3Customizing PPPThis chapter describes how to customize and enable PPP services. It assumes you have configured PPP on the

Configuring PPP Services3-2303537-A Rev 00Enabling PPP on an InterfaceIf you have already enabled PPP on the circuit that you want to configure, go to

Customizing PPP303537-A 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# st

Configuring PPP Services3-4303537-A Rev 00Setting Up Remote AddressesUsing Site Manager, you can define an address and node number (depending on the r

Customizing PPP303537-A Rev 003-5 Defining an IPX Network Number and Node Number for a Remote PeerSite Manager lets you specify an IPX network number

vi303537-A Rev 00PPP Dial Services Support ...2-10Dial-on-Dem

Configuring PPP Services3-6303537-A Rev 00Configuring AppleTalkTo enable AppleTalk on the interface, use Site Manager to configure an AppleTalk node n

Customizing PPP303537-A Rev 003-7 Enabling Bridging on an InterfaceWhen bridging is enabled for an interface, PPP accepts bridged traffic in the speci

Configuring PPP Services3-8303537-A Rev 00Enabling VINES Support on This InterfaceIf you enabled VINES support when you first configured PPP on this i

Customizing PPP303537-A Rev 003-9 Enabling DECnet IV Support on This InterfaceIf you enabled DECnet IV support when you first configured PPP on this i

Configuring PPP Services3-10303537-A Rev 00Enabling IPv6 on This InterfaceIf you enabled Internet Protocol, version 6 (IPv6) support when you initiall

Customizing PPP303537-A Rev 003-11 Specifying the Type of Connection - PPP ModeThe PPP Mode parameter indicates the type of connection on this interfa

Configuring PPP Services3-12303537-A Rev 00Configuring Multilink FragmentationFor multilink circuits that include different speed links and that may c

Customizing PPP303537-A Rev 003-13 Configuring Data EncryptionBay Networks offers software-based data encryption services for PPP dedicated links for

Configuring PPP Services3-14303537-A Rev 00Using Site ManagerTo stop traffic from routing over this PPP interface, do the tasks in the following table

Customizing PPP303537-A Rev 003-15 Editing PPP Line ParametersIf you change any of the parameters in the following list and you are dynamically config

303537-A Rev 00viiEnabling Data Compression on This Interface ...3-9Enabling IPv6 on This

Configuring PPP Services3-16303537-A Rev 00• Authentication Timer• Convergence Timer• Magic Num DisableUsing the BCCTo force LCP negotiation using the

Customizing PPP303537-A Rev 003-17 Enabling Link Control on a LineThe link control protocol (LCP) is enabled by default on the interface. Disabling th

Configuring PPP Services3-18303537-A Rev 00Setting Transmission ParametersYou can specify the timing of transmissions and the threshold for considerin

Customizing PPP303537-A Rev 003-19 Specifying the Interval Between Echo-Request PacketsThe value of the Seconds between Xmit of Echo-Request parameter

Configuring PPP Services3-20303537-A Rev 00Using the BCCNavigate to the line prompt for the circuit and enterecho-replies-lost secondsFor example, the

Customizing PPP303537-A Rev 003-21 For example, the following command sets the maximum number of unacknowledged configure-request packets allowed to 5

Configuring PPP Services3-22303537-A Rev 00Using Site ManagerTo set the maximum number of unacknowledged terminate-request packets allowed on this int

Customizing PPP303537-A Rev 003-23 Using Site ManagerTo set the maximum number of configure-NAK packets allowed on this interface, do the tasks in the

Configuring PPP Services3-24303537-A Rev 00Customizing PPP Authentication ParametersPPP imposes network security by offering support for two types of

Customizing PPP303537-A Rev 003-25 If you do not want to enable security features on this interface, accept the default, None. To enable Password Auth

viii303537-A Rev 00Specifying the Outbound Link Quality ...3-33Summary Example for BCC Lin

Configuring PPP Services3-26303537-A Rev 00Setting a Time Limit for AuthenticationYou can specify the maximum number of seconds the router waits for a

Customizing PPP303537-A Rev 003-27 Specifying Local PAP ParametersIf you did not enable PAP on the local peer, ignore the local PAP parameters that fo

Configuring PPP Services3-28303537-A Rev 00Specifying PAP Parameters for the Remote PeerIf the remote peer does not have PAP enabled, ignore the remot

Customizing PPP303537-A Rev 003-29 Allowing PAP RejectionSome peers do not use PAP. If you set the Allow PAP Reject parameter to Enable, your router a

Configuring PPP Services3-30303537-A Rev 00Specifying the CHAP SecretIf you have enabled CHAP, specify the secret. There is no default value. The func

Customizing PPP303537-A Rev 003-31 Configuring PPP Interoperability with CLAMIf you configure a CHAP local name on a Bay Networks router that connects

Configuring PPP Services3-32303537-A Rev 00By default, link quality monitoring is disabled. If you do not want to enable this feature, accept the defa

Customizing PPP303537-A Rev 003-33 The peer whose timer is enabled generates one LQR packet for each interval specified in the LQR Reporting Period pa

Configuring PPP Services3-34303537-A Rev 00Using the BCC1.Enable link quality monitoring.Enabling link quality monitoring on the interface allows all

Customizing PPP303537-A Rev 003-35 5.Set the outbound link quality.To specify the outbound link quality, enter the following command after setting the

303537-A Rev 00ixshow ppp lqr ...D-8sho

Configuring PPP Services3-36303537-A Rev 00Using Site ManagerTo configure link quality monitoring on this PPP interface, do the tasks in the following

Customizing PPP303537-A Rev 003-37 The async control character map specifies a value representing one or more asynchronous modem control characters fo

Configuring PPP Services3-38303537-A Rev 00Disabling Loopback CheckingFor test purposes, you can disable the loopback test that the peer normally perf

Customizing PPP303537-A Rev 003-39 Using Site ManagerTo disable loopback checking for this line, do the tasks in the following table.Setting the Maxim

Configuring PPP Services3-40303537-A Rev 00• As you upgrade each remote-site router software to Version 11.02 (or later), set its MRU value to 1590, u

Customizing PPP303537-A Rev 003-41 Enabling RFC 1661 Compliance for Dial CircuitsTo enable or disable RFC 1661 compliance on a dial circuit, do the ta

Configuring PPP Services3-42303537-A Rev 00Viewing Line Statistics for Multilink CircuitsTo view the statistics that PPP collects for multilink circui

Customizing PPP303537-A Rev 003-43 -- wfPppMlStatsTxPkts counts the total number of packets transmitted by multilink. Comparing this to the number of

Configuring PPP Services3-44303537-A Rev 00Where to Go NextGo to Chapter 1, “Starting PPP Services for instructions on how to start PPP on your router

303537-A Rev 00A-1 Appendix APPP ParametersThis appendix lists the parameters for the PPP interfaces that you can configure on the router. For each PP