Avaya Configuring IP Utilities (308631-14.20 Rev 00) Manual de usuario

BayRS Version 14.20Part No. 308631-14.20 Rev 00September 2000600 Technology Park DriveBillerica, MA 01821-4130Configuring IP Utilities

x308631-14.20 Rev 00Chapter 10Customizing the DNS ProxyDisabling and Reenabling DNS Proxy Services on a Router Interface ...10-

Configuring IP Utilities6-4308631-14.20 Rev 00Using Site ManagerTo specify a new manager’s login script file, complete the following tasks:Changing th

Customizing Telnet Services308631-14.20 Rev 006-5 Using Site ManagerTo specify a new user’s login script file, complete the following tasks:Enabling a

Configuring IP Utilities6-6308631-14.20 Rev 00For example, this command allows users to cancel the user autoscript at login:server# force-logout disab

Customizing Telnet Services308631-14.20 Rev 006-7 Customizing Telnet Server on the RouterThis section describes how to customize your Telnet server on

Configuring IP Utilities6-8308631-14.20 Rev 00To reenable a Telnet server on the IP router, navigate to the Telnet server prompt and enter:enableFor e

Customizing Telnet Services308631-14.20 Rev 006-9 Specifying the Maximum Number of Lines on the ConsoleYou can specify the maximum number of lines dis

Configuring IP Utilities6-10308631-14.20 Rev 00Pausing Telnet Console OutputBy default, Telnet console output pauses after each screen fills with data

Customizing Telnet Services308631-14.20 Rev 006-11 Changing the Telnet Login PromptYou can change the Telnet login prompt on the Telnet console screen

Configuring IP Utilities6-12308631-14.20 Rev 00Changing the Login TimeoutYou can specify a value that will determine the number of minutes that can el

Customizing Telnet Services308631-14.20 Rev 006-13 Changing the Password TimeoutBy changing the password timeout value you can determine the number of

308631-14.20 Rev 00xiAppendix CConfiguring IP Global Access PoliciesCreating and Naming the Policy ...

Configuring IP Utilities6-14308631-14.20 Rev 00Changing the Command TimeoutBy changing the command timeout you determine the number of minutes that ca

Customizing Telnet Services308631-14.20 Rev 006-15 Using Site ManagerTo specify the number of minutes that can elapse before the device disconnects th

Configuring IP Utilities6-16308631-14.20 Rev 00Using Site ManagerTo specify the number of login attempts allowed before the device disconnects the Tel

Customizing Telnet Services308631-14.20 Rev 006-17 To enable the Technician Interface to display a report showing a record of all processing operation

Configuring IP Utilities6-18308631-14.20 Rev 00Enabling Diagnostic Network DataThe Diagnostic Network Data parameter allows you to specify whether you

Customizing Telnet Services308631-14.20 Rev 006-19 Enabling Diagnostic OptionsTo specify whether you want the Technician Interface to display informat

Configuring IP Utilities6-20308631-14.20 Rev 00Using the BCCTo set the maximum number of commands that you want the router to store in the history tab

Customizing Telnet Services308631-14.20 Rev 006-21 Deleting Telnet Server from the RouterYou can delete Telnet server from the router using either the

Configuring IP Utilities6-22308631-14.20 Rev 00Customizing a Telnet ClientAfter you start a Telnet client on the router for outbound Telnet sessions,

Customizing Telnet Services308631-14.20 Rev 006-23 client# statestate enabledUsing Site ManagerTo disable or reenable a Telnet client on an IP router,

Configuring IP Utilities6-24308631-14.20 Rev 00To disable verbose debug logging, navigate to the client-specific prompt and enter:client# debug-log-fl

Customizing Telnet Services308631-14.20 Rev 006-25 Using Site ManagerTo change the remote Telnet server’s TCP port, complete the following tasks:Chang

Configuring IP Utilities6-26308631-14.20 Rev 00Using Site ManagerTo change the default Telnet client command prompt, complete the following tasks:Dele

Customizing Telnet Services308631-14.20 Rev 006-27 Using Site ManagerTo delete Telnet client from the router, complete the following tasks:Site Manage

308631-14.20 Rev 007-1 Chapter 7Customizing NTP ServicesThis chapter describes how to customize NTP services on the router. It assumes that you have c

Configuring IP Utilities7-2308631-14.20 Rev 00Configuring NTP Using the BCC or Site ManagerTable 7-1 lists the NTP configuration tasks described in th

Customizing NTP Services308631-14.20 Rev 007-3 For example, the following command reenables NTP on the router:ntp# enablentp# statestate enabledUsing

Configuring IP Utilities7-4308631-14.20 Rev 00To specify the mode in which you want NTP to run on the router, complete the following tasks:Configuring

Customizing NTP Services308631-14.20 Rev 007-5 Adding Remote Time ServersYou add remote time servers to the router by specifying the IP address of eac

308631-14.20 Rev 00xiiiFiguresFigure 2-1. TCP Between IP and Clients ...2-6Figure 2-2

Configuring IP Utilities7-6308631-14.20 Rev 00Using Site ManagerTo specify the IP address of each NTP time server that you want to add, complete the f

Customizing NTP Services308631-14.20 Rev 007-7 Using the BCCTo specify the mode in which a remote time server operates, navigate to an NTP peer prompt

Configuring IP Utilities7-8308631-14.20 Rev 00Setting Local Host ModeThe Local Host Mode parameter indicates the mode of operation of the local NTP cl

Customizing NTP Services308631-14.20 Rev 007-9 Using the BCCTo specify a source IP address that overrides the source address of the IP interface from

Configuring IP Utilities7-10308631-14.20 Rev 00Specifying Peer PreferenceThe peer preference parameter allows you to specify a list of remote time ser

Customizing NTP Services308631-14.20 Rev 007-11 Using Site ManagerTo specify whether the local NTP client will prefer or reject NTP packets from the r

Configuring IP Utilities7-12308631-14.20 Rev 00Deleting Remote Time Servers from a RouterWhen you delete a remote time server (peer), NTP deletes the

Customizing NTP Services308631-14.20 Rev 007-13 Configuring NTP Access Control The access control feature allows you to selectively restrict NTP clien

Configuring IP Utilities7-14308631-14.20 Rev 00Specifying a Filter Type and IP Subnet MaskThe NTP filter type parameter allows you to specify whether

Customizing NTP Services308631-14.20 Rev 007-15 Using Site ManagerTo specify whether to drop or accept NTP timestamps destined for a local NTP client,

Configuring IP Utilities7-16308631-14.20 Rev 00Using Site ManagerTo delete NTP from the router, complete the following tasks:Site Manager ProcedureYou

308631-14.20 Rev 008-1 Chapter 8Customizing NetBIOS over IPThis chapter describes how to customize NetBIOS over IP services on the router. It assumes

Configuring IP Utilities8-2308631-14.20 Rev 00Disabling and Reenabling NetBIOS on the RouterWhen you start NetBIOS on the router, NetBIOS is automatic

Customizing NetBIOS over IP308631-14.20 Rev 008-3 Enabling Name Caching on the RouterThe NetBIOS Name Caching parameter enables the router to cache th

Configuring IP Utilities8-4308631-14.20 Rev 00Specifying Whether a MIB Instance Is Created for Each Cached NameBy default, NetBIOS creates a MIB insta

Customizing NetBIOS over IP308631-14.20 Rev 008-5 To specify the maximum number of entries in the NetBIOS name cache, complete the following tasks usi

Configuring IP Utilities8-6308631-14.20 Rev 00To specify any time value for aging out infrequently referenced names from the NetBIOS name cache, compl

Customizing NetBIOS over IP308631-14.20 Rev 008-7 For networks that actively use up to 2500 NetBIOS server names, use the default value (253). To dete

Configuring IP Utilities8-8308631-14.20 Rev 00Specifying a TTL Value for a Rebroadcast PacketThe time-to-live (TTL) value restricts the number of rout

Customizing NetBIOS over IP308631-14.20 Rev 008-9 To specify whether to enable or disable the rebroadcast of record routes, complete the following tas

308631-14.20 Rev 00xvTablesTable 2-1. TCP Reliability Features ...2-3Table 2-2

Configuring IP Utilities8-10308631-14.20 Rev 00Disabling and Reenabling Name Caching on the InterfaceBy default, NetBIOS name caching is enabled on th

Customizing NetBIOS over IP308631-14.20 Rev 008-11 Disabling and Reenabling Inbound and Outbound BroadcastsBy default, NetBIOS can receive inbound bro

Configuring IP Utilities8-12308631-14.20 Rev 00Supplying a Rebroadcast AddressBy default, NetBIOS uses the IP broadcast address configured for this in

Customizing NetBIOS over IP308631-14.20 Rev 008-13 • The NetBIOS scope identifierThe NetBIOS scope is the area of the network across which the name is

Configuring IP Utilities8-14308631-14.20 Rev 00Disabling and Reenabling Static Name CachingBy default, NetBIOS caches the names you added statically.

Customizing NetBIOS over IP308631-14.20 Rev 008-15 To add a traffic filter to a NetBIOS interface, complete the following tasks using Site Manager:Sit

Configuring IP Utilities8-16308631-14.20 Rev 00Deleting NetBIOS from the RouterTo delete NetBIOS over IP service from the router, complete the followi

308631-14.20 Rev 009-1 Chapter 9Customizing the DNS ClientThis chapter describes how to customize DNS client services on the router. It assumes that y

Configuring IP Utilities9-2308631-14.20 Rev 00Disabling and Reenabling DNS Client Services on the RouterYou can disable or reenable DNS client service

Customizing the DNS Client308631-14.20 Rev 009-3 Modifying the DNS Client ConfigurationYou can modify how the router makes requests to the DNS server;

Configuring IP Utilities9-4308631-14.20 Rev 00Using the BCCTo modify how the router sends DNS requests, navigate to the DNS prompt and enter one or mo

Customizing the DNS Client308631-14.20 Rev 009-5 Using Site ManagerTo modify how the router sends DNS requests, complete the following tasks:Disabling

Configuring IP Utilities9-6308631-14.20 Rev 00Using the BCCTo disable the recursion bit, navigate to the DNS prompt and enter:dns# recursion disabledF

Customizing the DNS Client308631-14.20 Rev 009-7 Modifying How the DNS Client Handles Server ResponsesYou can specify whether the router accepts the D

Configuring IP Utilities9-8308631-14.20 Rev 00Changing the DNS Server List for the DNS ClientThe DNS server list contains the DNS servers (up to three

Customizing the DNS Client308631-14.20 Rev 009-9 Using Site ManagerTo view the list of DNS servers to which the router can connect, complete the follo

Configuring IP Utilities9-10308631-14.20 Rev 00Using Site ManagerTo add a new entry to the DNS server list, complete the following tasks:Deleting Entr

Customizing the DNS Client308631-14.20 Rev 009-11 Using Site ManagerTo delete an entry from the DNS server list, complete the following tasks:Deleting

Configuring IP Utilities9-12308631-14.20 Rev 00Using Site ManagerTo delete DNS client services from the router, complete the following tasks:Site Mana

308631-14.20 Rev 0010-1 Chapter 10Customizing the DNS ProxyThis chapter describes how to customize DNS proxy services on a router interface. It assume

308631-14.20 Rev 00xvii PrefaceIP utilities are application protocols that use the Internet Protocol (IP) for message transport. This guide describes

Configuring IP Utilities10-2308631-14.20 Rev 00Disabling and Reenabling DNS Proxy Services on a Router InterfaceYou can disable or reenable DNS proxy

Customizing the DNS Proxy308631-14.20 Rev 0010-3 Modifying the DNS Proxy ConfigurationYou can use the BCC or Site Manager to customize the DNS proxy c

Configuring IP Utilities10-4308631-14.20 Rev 00Using the BCCTo modify how DNS proxy on the router handles DNS requests, navigate to the DNS proxy prom

Customizing the DNS Proxy308631-14.20 Rev 0010-5 For example, the following commands change the defaults of how the router sends DNS proxy requests an

Configuring IP Utilities10-6308631-14.20 Rev 00Modifying the DNS Server List for DNS ProxyWhen you configure DNS proxy on a router interface, you must

Customizing the DNS Proxy308631-14.20 Rev 0010-7 Changing the IP Address of an Entry in the DNS Proxy Server ListYou can change the IP address of a DN

Configuring IP Utilities10-8308631-14.20 Rev 00Using Site ManagerTo change the IP address of an entry from the DNS proxy list of DNS forwarding server

Customizing the DNS Proxy308631-14.20 Rev 0010-9 Using Site ManagerTo delete DNS proxy services from a router interface, complete the following tasks:

308631-14.20 Rev 00A-1 Appendix ASite Manager ParametersThis appendix contains the Site Manager parameter descriptions for TCP, FTP, TFTP, Telnet, NTP

Configuring IP Utilitiesxviii308631-14.20 Rev 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >) Indicate tha

Configuring IP UtilitiesA-2308631-14.20 Rev 00For each parameter, this appendix provides the following information:• Parameter name• Configuration Man

Site Manager Parameters308631-14.20 Rev 00A-3 TCP Global ParametersUse the following guidelines to configure TCP global parameters in the Configuratio

Configuring IP UtilitiesA-4308631-14.20 Rev 00Parameter: Max. Retransmission Timeout (msec.)Path: Configuration Manager > Protocols > Global Pro

Site Manager Parameters308631-14.20 Rev 00A-5 FTP Global ParametersUse the following guidelines to configure the parameters in the Edit FTP Global Par

Configuring IP UtilitiesA-6308631-14.20 Rev 00Parameter: Idle Time Out (secs)Path: Configuration Manager > Protocols > Global Protocols > FTP

Site Manager Parameters308631-14.20 Rev 00A-7 Parameter: Control ConnectionPath: Configuration Manager > Protocols > Global Protocols > FTP &

Configuring IP UtilitiesA-8308631-14.20 Rev 00TFTP ParametersUse the following guidelines to configure the parameters in the Edit TFTP Parameters wind

Site Manager Parameters308631-14.20 Rev 00A-9 Telnet Server Global ParametersUse the following guidelines to configure the Telnet server global parame

Configuring IP UtilitiesA-10308631-14.20 Rev 00Parameter: TI Lines per ScreenPath: Configuration Manager > Protocols > Global Protocols > Tel

Site Manager Parameters308631-14.20 Rev 00A-11 Parameter: TI PromptPath: Configuration Manager > Protocols > Global Protocols > Telnet Server

Preface308631-14.20 Rev 00xix AcronymsThis guide uses the following acronyms:italic text Indicates new terms, book titles, and variables in command sy

Configuring IP UtilitiesA-12308631-14.20 Rev 00Parameter: Command Timeout (min.)Path: Configuration Manager > Protocols > Global Protocols >

Site Manager Parameters308631-14.20 Rev 00A-13 Parameter: Diagnostic ExercisePath: Configuration Manager > Protocols > Global Protocols > Tel

Configuring IP UtilitiesA-14308631-14.20 Rev 00Parameter: Diagnostic OptionsPath: Configuration Manager > Protocols > Global Protocols > Teln

Site Manager Parameters308631-14.20 Rev 00A-15 Parameter: Force User LogoutPath: Configuration Manager > Protocols > Global Protocols > Telne

Configuring IP UtilitiesA-16308631-14.20 Rev 00Telnet Client Global ParametersUse the following guidelines to configure the parameters in the Edit Tel

Site Manager Parameters308631-14.20 Rev 00A-17 NTP ParametersUse the following guidelines to configure NTP parameters.Parameter: Remote PortPath: Conf

Configuring IP UtilitiesA-18308631-14.20 Rev 00Parameter: ModePath: Configuration Manager > Protocols > Global Protocols > NTP > GlobalDef

Site Manager Parameters308631-14.20 Rev 00A-19 Parameter: Filter TypePath: Configuration Manager > Protocols > Global Protocols > NTP > Ac

Configuring IP UtilitiesA-20308631-14.20 Rev 00Parameter: Local Host ModePath: Configuration Manager > Protocols > Global Protocols > NTP >

Site Manager Parameters308631-14.20 Rev 00A-21 NetBIOS Global ParametersUse the following guidelines to configure the parameters in the Edit NetBIOS/I

ii308631-14.20 Rev 00 Copyright © 2000 Nortel NetworksAll rights reserved. September 2000.The information in this document is subject to change withou

Configuring IP Utilitiesxx308631-14.20 Rev 00DoD Department of DefenseFIFO first in first outFTP File Transfer ProtocolGMT Greenwich mean timeIEEE Ins

Configuring IP UtilitiesA-22308631-14.20 Rev 00Parameter: NetBIOS Name CachingPath: Configuration Manager > Protocols > IP > NetBIOS > Glo

Site Manager Parameters308631-14.20 Rev 00A-23 Parameter: Max Name Cache EntriesPath: Configuration Manager > Protocols > IP > NetBIOS > G

Configuring IP UtilitiesA-24308631-14.20 Rev 00Parameter: Hash Entry CountPath: Configuration Manager > Protocols > IP > NetBIOS > GlobalD

Site Manager Parameters308631-14.20 Rev 00A-25 NetBIOS/IP Interface Table ParametersUse the following guidelines to configure the parameters in the Ne

Configuring IP UtilitiesA-26308631-14.20 Rev 00Parameter: NetBIOS Name CachingPath: Configuration Manager > Protocols > IP > NetBIOS > Int

Site Manager Parameters308631-14.20 Rev 00A-27 NetBIOS/IP Static Entry Table ParametersUse the following guidelines to configure the parameters in the

Configuring IP UtilitiesA-28308631-14.20 Rev 00Parameter: NetBIOS Station NamePath: Configuration Manager > Protocols > IP > NetBIOS > Sta

Site Manager Parameters308631-14.20 Rev 00A-29 DNS Client ParametersUse the following guidelines to configure the parameters in the DNS Configuration

Configuring IP UtilitiesA-30308631-14.20 Rev 00Parameter: Max RetransmissionPath: Configuration Manager > Protocols > Global Protocols > DNS

Site Manager Parameters308631-14.20 Rev 00A-31 Parameter: Domain NamePath: Configuration Manager > Protocols > Global Protocols > DNS > Cr

Preface308631-14.20 Rev 00xxi Hard-Copy Technical ManualsYou can print selected technical manuals and release notes free, directly from the Internet.

Configuring IP UtilitiesA-32308631-14.20 Rev 00Parameter: Ignore Truncation ErrorPath: Configuration Manager > Protocols > Global Protocols >

Site Manager Parameters308631-14.20 Rev 00A-33 DNS Server Parameters (for DNS Client)Use the following guidelines to configure the parameters in the D

Configuring IP UtilitiesA-34308631-14.20 Rev 00DNS Proxy ParametersUse the following guidelines to configure the parameters in the DNS Proxy List wind

Site Manager Parameters308631-14.20 Rev 00A-35 Parameter: IP AddressPath: Configuration Manager > Protocols > Global Protocols > DNS > DNS

Configuring IP UtilitiesA-36308631-14.20 Rev 00Parameter: Domain NamePath: Configuration Manager > Protocols > Global Protocols > DNS > DN

Site Manager Parameters308631-14.20 Rev 00A-37 Parameter: DNS Server 3Path: Configuration Manager > Protocols > Global Protocols > DNS > D

Configuring IP UtilitiesA-38308631-14.20 Rev 00Parameter: Max. RetransmissionsPath: Configuration Manager > Protocols > Global Protocols > DN

Site Manager Parameters308631-14.20 Rev 00A-39 Parameter: Trunc. Max. AllowedPath: Configuration Manager > Protocols > Global Protocols > DNS

Configuring IP UtilitiesA-40308631-14.20 Rev 00IP Accounting ParametersUse the following guidelines to configure the IP accounting parameters in the E

Site Manager Parameters308631-14.20 Rev 00A-41 Parameter: IP Accounting Checkpoint FlagPath: Configuration Manager > Protocols > IP > GlobalD

308631-14.20 Rev 00B-1 Appendix BConfiguring IP Accounting ona Frame Relay InterfaceIP accounting is a mechanism for counting transit data packets --

Configuring IP UtilitiesB-2308631-14.20 Rev 00The following sections describe how to configure IP accounting on a frame relay interface: Enabling IP A

Configuring IP Accounting on a Frame Relay Interface308631-14.20 Rev 00B-3 Specifying the Maximum Size of the IP Accounting TableBy default, the IP ac

Configuring IP UtilitiesB-4308631-14.20 Rev 00Copying the IP Accounting Table to the Checkpoint TableWhen the IP accounting table is filled to capacit

308631-14.20 Rev 00C-1 Appendix CConfiguring IP Global Access PoliciesUsing the BCC, you can create global IP access policies that permit or deny acce

Configuring IP UtilitiesC-2308631-14.20 Rev 00Creating and Naming the Policy To create an IP global access policy, navigate to the IP global prompt (f

Configuring IP Global Access Policies308631-14.20 Rev 00C-3 Specifying the Policy ActionBy default, the policy denies access to the IP utility that yo

Configuring IP UtilitiesC-4308631-14.20 Rev 00Specifying the Network to Which the Policy AppliesYou must specify the IP address or range of contiguous

Configuring IP Global Access Policies308631-14.20 Rev 00C-5 Disabling and Reenabling LoggingBy default, the IP global access policy turns message logg

308631-14.20 Rev 001-1Chapter 1Starting IP UtilitiesThis chapter describes how to create a basic TCP (Transmission Control Protocol), FTP (File Transf

308631-14.20 Rev 00D-1 Appendix DBCC show CommandsTo display configuration and statistical data about DNS, FTP, NTP, TCP, Telnet, and TFTP from the ma

Configuring IP UtilitiesD-2308631-14.20 Rev 00Online Help for show CommandsTo display a list of command options, enter one of these commands at any BC

BCC show Commands308631-14.20 Rev 00D-3 show dns statsThe show dns stats command displays the DNS counters. The output includes the following informat

Configuring IP UtilitiesD-4308631-14.20 Rev 00show ntp accessThe show ntp access command displays information about the Network Time Protocol (NTP) se

BCC show Commands308631-14.20 Rev 00D-5 show ntp baseThe show ntp base command displays the base record information for the NTP client running on the

Configuring IP UtilitiesD-6308631-14.20 Rev 00show ntp statsThe show ntp stats command displays information about the number of: • Polls (requests for

BCC show Commands308631-14.20 Rev 00D-7 show tcp stats The show tcp stats command displays information about the TCP configuration. The output include

Configuring IP UtilitiesD-8308631-14.20 Rev 00show telnetThe show telnet command displays information about Telnet services. The output includes the f

BCC show Commands308631-14.20 Rev 00D-9 show tftp The show tftp command displays information about the Trivial File Transfer Protocol (TFTP) status. T

Configuring IP Utilities1-2308631-14.20 Rev 00Starting Configuration ToolsBefore configuring TCP, FTP, TFTP, Telnet, NTP, NetBIOS over IP, or DNS serv

308631-14.20 Rev 00Index-1Numbers15-Character NetBIOS Name Caching parameter (NetBIOS), 8-3, A-22Aacronyms, xixAnswer Truncation parameter (DNS proxy)

Index-2308631-14.20 Rev 00DNS clientcustomizing, 9-1deleting, 9-11disabling, 9-2DNS serverscontacting alternate, 9-5deleting, 9-10displaying list of,

308631-14.20 Rev 00Index-3FFilter Type parameter (NTP), 7-15, A-19Force User Logout parameter (Telnet server), 6-6, A-15FTP (File Transfer Protocol)cu

Index-4308631-14.20 Rev 00NetBIOS over IPbroadcastsdisabling, 8-11reenabling, 8-11cache entryaging, 8-5configuring, 8-2cache search, customizing, 8-6d

308631-14.20 Rev 00Index-5Sshow dns commandsserver, D-2stats, D-3show ftp command, D-3show ntp commandsaccess, D-4, D-5base, D-5peers, D-5stats, D-6sh

Index-6308631-14.20 Rev 00TI More parameter (Telnet server), 6-10, A-10TI Prompt parameter (Telnet server), 6-11, A-11Time Out parameter (DNS client),

Starting IP Utilities308631-14.20 Rev 001-3•interface_type is the name of a link or net module on the router.•slot_number is the number of the slot in

Configuring IP Utilities1-4308631-14.20 Rev 00Using Site ManagerBefore you can select a protocol to run on the router, you must configure a circuit th

Starting IP Utilities308631-14.20 Rev 001-5Verifying that IP Is Configured on a Router InterfaceYou can use the BCC or Site Manager to check whether I

Configuring IP Utilities1-6308631-14.20 Rev 00Using the BCCTo configure TCP on the router with default settings, begin in configuration mode at the bo

Starting IP Utilities308631-14.20 Rev 001-7Starting FTP ServicesYou can use the BCC or Site Manager to configure FTP on the router, accepting default

308631-14.20 Rev 00iiiNortel Networks NA Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using t

Configuring IP Utilities1-8308631-14.20 Rev 00Starting TFTP ServicesBefore you begin, verify that IP is configured on a router interface. For instruct

Starting IP Utilities308631-14.20 Rev 001-9retry-count 5retry-timeout 5state enabledUsing Site ManagerTo start TFTP from Site Manager, first complete

Configuring IP Utilities1-10308631-14.20 Rev 00Step 1: Start a Telnet ServerTo start a Telnet server on the router with default settings, begin in con

Starting IP Utilities308631-14.20 Rev 001-11Using Site ManagerBefore you can start Telnet services, you must first start TCP (for instructions, see “S

Configuring IP Utilities1-12308631-14.20 Rev 00Starting NTP ServicesYou can use the BCC or Site Manager to configure NTP on the router, accepting defa

Starting IP Utilities308631-14.20 Rev 001-13Using Site ManagerTo start NTP services, complete the following tasks:Starting NetBIOS over IPYou can star

Configuring IP Utilities1-14308631-14.20 Rev 00Starting the DNS Client and Specifying Its First DNS ServerYou can use the BCC or Site Manager to confi

Starting IP Utilities308631-14.20 Rev 001-15Step 1. Start the DNS ClientTo start a DNS client on the router with default settings, begin in configurat

Configuring IP Utilities1-16308631-14.20 Rev 00Using Site ManagerTo configure DNS client on the router, you must: 1. Start the DNS client.2. Specify a

Starting IP Utilities308631-14.20 Rev 001-17Starting the DNS Proxy and Specifying Its First DNS ServerYou can use the BCC or Site Manager to configure

iv308631-14.20 Rev 00for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct

Configuring IP Utilities1-18308631-14.20 Rev 00Using the BCCTo configure DNS proxy on a router interface, you must: 1. Start DNS proxy.2. Specify a DN

Starting IP Utilities308631-14.20 Rev 001-19Specifying an IP address for the fwd-server1-address parameter specifies that the DNS server at 63.122.49.

308631-14.20 Rev 002-1 Chapter 2Overview of IP UtilitiesThis chapter describes the concepts behind TCP, FTP, TFTP, Telnet, NTP, DNS, and NetBIOS over

Configuring IP Utilities2-2308631-14.20 Rev 00The Nortel Networks implementation of TCP generally ensures good terminal server performance on slow-spe

Overview of IP Utilities308631-14.20 Rev 002-3 TCP FeaturesBecause IP does not always guarantee reliable transfer of data, TCP implements several reli

Configuring IP Utilities2-4308631-14.20 Rev 00Connection TypesTCP is a connection-oriented protocol that requires application programs at both ends of

Overview of IP Utilities308631-14.20 Rev 002-5 TCP Memory ConsiderationsThe Transmission Control Protocol requires a significant amount of memory to:•

Configuring IP Utilities2-6308631-14.20 Rev 00The value you set for the maximum window size depends on how much memory you need for services other tha

Overview of IP Utilities308631-14.20 Rev 002-7 The interface between TCP and programs that use TCP consists of a set of messages exchanged between the

308631-14.20 Rev 00vContentsPrefaceBefore You Begin ...

Configuring IP Utilities2-8308631-14.20 Rev 00How FTP WorksThe FTP client initiates an FTP session with the FTP server on the router. The session esta

Overview of IP Utilities308631-14.20 Rev 002-9 Table 2-3 describes the FTP commands that the FTP server supports on Nortel Networks routers.Table 2-3.

Configuring IP Utilities2-10308631-14.20 Rev 00TFTP OverviewThe Trivial File Transfer Protocol (TFTP) is a TCP/IP standard protocol for transferring f

Overview of IP Utilities308631-14.20 Rev 002-11 Both devices involved in a TFTP transfer are senders and receivers. One device sends data and receives

Configuring IP Utilities2-12308631-14.20 Rev 00To use Telnet to access the Technician Interface, you must assign at least one IP address to the router

Overview of IP Utilities308631-14.20 Rev 002-13 Figure 2-3. Telnet ServerTelnet ClientWhen you create a Telnet client, the router sends outbound reque

Configuring IP Utilities2-14308631-14.20 Rev 00Figure 2-4. Telnet ClientTCP0005ATCPconnection$ telnetOutbound Telnet sessionConsole cableTelnet (serve

Overview of IP Utilities308631-14.20 Rev 002-15 NTP OverviewThe Network Time Protocol (NTP) synchronizes the timing of internal clocks of various netw

Configuring IP Utilities2-16308631-14.20 Rev 00There are two types of time servers in the NTP model: primary time servers and secondary time servers.

Overview of IP Utilities308631-14.20 Rev 002-17 How NTP Distributes Time Within the SubnetNTP distributes time through a hierarchy of primary and seco

vi308631-14.20 Rev 00FTP Overview ...2-

Configuring IP Utilities2-18308631-14.20 Rev 00NTP uses the following criteria to determine the time server whose time is best:• Time server with the

Overview of IP Utilities308631-14.20 Rev 002-19 Figure 2-6. NTP Time Servers Operating in Unicast Client Mode Broadcast and Multicast Client ModeIn br

Configuring IP Utilities2-20308631-14.20 Rev 00NetBIOS OverviewThe Network Basic Input/Output System (NetBIOS) is a session layer communications servi

Overview of IP Utilities308631-14.20 Rev 002-21 • Use a server’s NetBIOS name to determine the server’s network address. The application issues a name

Configuring IP Utilities2-22308631-14.20 Rev 00The following steps occur:1. The client issues a name query request to NetBIOS on the host, specifying

Overview of IP Utilities308631-14.20 Rev 002-23 The server responds to the name query request by issuing a positive name query response, containing th

Configuring IP Utilities2-24308631-14.20 Rev 00Forwarding Name Queries over an Unnumbered InterfaceNetBIOS cannot be configured directly on an unnumbe

Overview of IP Utilities308631-14.20 Rev 002-25 How the DNS Proxy Server WorksClients on a LAN typically use DNS servers to resolve a host name to an

Configuring IP Utilities2-26308631-14.20 Rev 00DNS responses can contain several answers to the client question, although most DNS clients use only th

308631-14.20 Rev 003-1 Chapter 3Customizing TCP ServicesThis chapter describes how to customize TCP services on the router. It assumes that you have c

308631-14.20 Rev 00viiSpecifying the Maximum FTP Idle Timeout ...4-6Specifying the Ma

Configuring IP Utilities3-2308631-14.20 Rev 00Disabling and Reenabling TCPBy default, TCP is automatically enabled on the router. If you disable TCP,

Customizing TCP Services308631-14.20 Rev 003-3 Setting the Minimum Retransmission TimeoutYou can specify a minimum value for the retransmission timeou

Configuring IP Utilities3-4308631-14.20 Rev 00Using Site ManagerTo specify a value for the minimum retransmission timeout, complete the following task

Customizing TCP Services308631-14.20 Rev 003-5 Using the BCCBy default, TCP sets the maximum retransmission value to 240,000 ms. To specify a value fo

Configuring IP Utilities3-6308631-14.20 Rev 00Setting the Maximum Window SizeYou can specify a value in bytes to determine the maximum transmit-and-re

Customizing TCP Services308631-14.20 Rev 003-7 Deleting TCPYou can delete TCP from the router using the BCC or Site Manager.Using the BCCTo delete TCP

308631-14.20 Rev 004-1 Chapter 4Customizing FTP ServicesThis chapter describes how to customize FTP services on the router. It assumes that you have c

Configuring IP Utilities4-2308631-14.20 Rev 00Configuring FTP Using the BCC or Site ManagerTable 4-1 lists the FTP configuration tasks described in th

Customizing FTP Services308631-14.20 Rev 004-3 For example:ftp# enableftp# statestate enabledUsing Site ManagerTo enable and disable FTP on the router

viii308631-14.20 Rev 00Using Telnet Server Diagnostics ...6-16Enabling Diag

Configuring IP Utilities4-4308631-14.20 Rev 00In the following example, the default volume value is set to 5 and the info command displays configured

Customizing FTP Services308631-14.20 Rev 004-5 Specifying the Number of Login RetriesThe FTP login retries value is the number of FTP login retries th

Configuring IP Utilities4-6308631-14.20 Rev 00Specifying the Maximum FTP Idle TimeoutThe FTP idle time is the length of time, in seconds, that FTP wai

Customizing FTP Services308631-14.20 Rev 004-7 Specifying the Maximum Number of FTP SessionsYou can determine the maximum number of FTP sessions you w

Configuring IP Utilities4-8308631-14.20 Rev 00Using Site ManagerTo specify the maximum number of FTP sessions you want to run at one time, complete th

Customizing FTP Services308631-14.20 Rev 004-9 Specifying the FTP Control ConnectionYou can determine how the Internet transport layer handles datagra

Configuring IP Utilities4-10308631-14.20 Rev 00Specifying a Data Transfer ValueYou can determine how the Internet transport layer handles datagrams on

Customizing FTP Services308631-14.20 Rev 004-11 For example, the following command line sets the window size used for TCP connections to 45,000 bytes:

Configuring IP Utilities4-12308631-14.20 Rev 00Deleting FTPYou can delete FTP services from the router using the BCC or Site Manager.Using the BCCTo d

308631-14.20 Rev 005-1 Chapter 5Customizing TFTP ServicesThis chapter describes how to customize Trivial File Transfer Protocol (TFTP) services on the

308631-14.20 Rev 00ixChapter 8Customizing NetBIOS over IPDisabling and Reenabling NetBIOS on the Router ...

Configuring IP Utilities5-2308631-14.20 Rev 00Disabling and Reenabling TFTP ServicesAfter you configure IP and start TFTP on the router, TFTP is enabl

Customizing TFTP Services308631-14.20 Rev 005-3 Specifying the Default Volume for the RouterWhen you configure TFTP on the router, you can specify whi

Configuring IP Utilities5-4308631-14.20 Rev 00Using Site ManagerTo specify the appropriate volume number (slot) on which to run TFTP, complete the fol

Customizing TFTP Services308631-14.20 Rev 005-5 Using Site ManagerTo specify the number of seconds that TFTP waits for an acknowledgment, complete the

Configuring IP Utilities5-6308631-14.20 Rev 00Using Site ManagerTo specify a close timeout value, complete the following tasks:Specifying the Number o

Customizing TFTP Services308631-14.20 Rev 005-7 Using Site ManagerTo specify the number of retransmissions that TFTP will attempt, complete the follow

Configuring IP Utilities5-8308631-14.20 Rev 00Using Site ManagerTo delete TFTP from the router, complete the following tasks:Site Manager ProcedureYou

308631-14.20 Rev 006-1 Chapter 6Customizing Telnet ServicesThis chapter describes how to customize Telnet services on the router. It assumes that you

Configuring IP Utilities6-2308631-14.20 Rev 00Configuring Telnet Using the BCC or Site ManagerTable 6-1 lists the Telnet configuration tasks described

Customizing Telnet Services308631-14.20 Rev 006-3 Customizing the Telnet ConfigurationAfter you start the Telnet server to establish inbound Telnet se