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PortMasterConfiguration GuideLucent TechnologiesRemote Access Business Unit4464 Willow RoadPleasanton, CA 94588925-737-2100800-458-9966May 1998950-118

Contentsx Configuration Guide for PortMaster ProductsInput Filter for an Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring a Port for a Dedicated Connection5-24 PortMaster Configuration GuideThe PortMaster supports Stac LZS data compression only for PPP connect

Configuring an Asynchronous Port 5-25Connecting without TCP/IP Supportcharacters. The PPP asynchronous map is a bitmap of characters that should be re

Connecting without TCP/IP Support5-26 PortMaster Configuration GuideNote – The PortMaster ignores the Data Set Ready (DSR) signal. Some PCs might requ

6-1Configuring a Synchronous WAN Port6This chapter describes the steps required to configure a PortMaster synchronous Wide Area Network (WAN) port.Thi

Synchronous Port Uses6-2 PortMaster Configuration Guidedozen field offices with 56Kbps or fractional T1 Frame Relay connections can connect to a centr

Configuring a Synchronous WAN Port 6-3Synchronous Port UsesFigure 6-1Synchronous WAN ConnectionOnce you have determined the type of synchronous connec

Configuring WAN Port Settings6-4 PortMaster Configuration GuideConfiguring WAN Port SettingsThe WAN port settings described in this section enable you

Configuring a Synchronous WAN Port 6-5Configuring WAN Port SettingsTable 6-1 describes the four connection types available on synchronous ports.Settin

Configuring WAN Port Settings6-6 PortMaster Configuration GuideYou can substitute any of the following for Speed:Setting Modem ControlWhen modem contr

Configuring a Synchronous WAN Port 6-7Configuring WAN Port SettingsAssigning a Port to a Dial GroupYou can create modem pools for dial-out connections

ContentsxiSetting the Inband Signaling Protocol for E1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4Configuring ISDN PR

Configuring WAN Port Settings6-8 PortMaster Configuration GuideSetting the Transport ProtocolThe transport protocol for synchronous connections must b

Configuring a Synchronous WAN Port 6-9Configuring WAN Port SettingsTo set the destination IP address for a leased-line connection only, use the follow

Configuring WAN Port Settings6-10 PortMaster Configuration GuideTo configure RIP routing, use the following command: Command> set W1 rip on|broadc

Configuring a Synchronous WAN Port 6-11Configuring WAN Port SettingsTo apply an input filter to a synchronous port, use the following command: Comman

Configuring WAN Port Settings6-12 PortMaster Configuration Guide

7-1Configuring Dial-In Users7This chapter describes how to configure the PortMaster user table to support dial-in connections. The user table settings

Configuring the User Table7-2 PortMaster Configuration GuideDisplaying User InformationYou can display the current users in the user table or the comp

Configuring Dial-In Users 7-3User TypesNote – To add a network user, you must use the netuser keyword. Thereafter, you can use either the netuser or t

Configuring Settings for Network and Login Users7-4 PortMaster Configuration GuideConfiguring Settings for Network and Login UsersThe following settin

Configuring Dial-In Users 7-5Configuring Network UsersSetting the ProtocolYou can set the network protocol for the network user to PPP or SLIP as desc

Contentsxii Configuration Guide for PortMaster ProductsProvisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring Network Users7-6 PortMaster Configuration GuideTo set the user IP address for a normal network user, use the following command:Command>

Configuring Dial-In Users 7-7Configuring Network UsersTable 7-2 describes the results of using each keyword. Setting the Asynchronous Character MapTh

Configuring Network Users7-8 PortMaster Configuration GuideThe MTU size is typically set to the maximum allowed for the protocol being used, either 15

Configuring Dial-In Users 7-9Configuring Network UsersThe PortMaster supports Stac LZS data compression only for PPP connections with bidirectional co

Configuring Login Users7-10 PortMaster Configuration GuideTo apply an output filter for a network user, use the following command:Command> set user

Configuring Dial-In Users 7-11Configuring Login UsersTo set the login host for a login user, use the following command:Command> set user Username h

Configuring Login Users7-12 PortMaster Configuration GuideSetting the Login Service TypeAll login users must have an associated login service that det

Configuring Dial-In Users 7-13Configuring Login UsersTo set the login service type for a login user, use the following command:Command> set user Us

Configuring Login Users7-14 PortMaster Configuration Guide

8-1Configuring Dial-Out Connections8This chapter discusses how to create locations—settings for dial-out destinations—for dial-out connections.This ch

ContentsxiiiLMI Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3

Configuring the Location Table8-2 PortMaster Configuration GuideLocations can also optionally have the following settings:• Connection type (dial-on-d

Configuring Dial-Out Connections 8-3Configuring the Location TableCreating a Location You must create a unique dial-out location for each remote host

Configuring the Location Table8-4 PortMaster Configuration GuideOn-DemandDial-on-demand connections to selected locations can save money because the t

Configuring Dial-Out Connections 8-5Configuring the Location TableTo configure a location to support a manual connection, use the following command:Co

Configuring the Location Table8-6 PortMaster Configuration GuideSetting the Destination IP AddressThe destination IP address is the IP address expecte

Configuring Dial-Out Connections 8-7Configuring the Location TableSetting RIP RoutingYou can associate RIP routing with locations—for example, a dial

Configuring the Location Table8-8 PortMaster Configuration GuideSetting the Dial GroupDial groups associate locations with specific dial-out ports. By

Configuring Dial-Out Connections 8-9Configuring the Location TableCompression cannot be used with multiline load-balancing, but can be used with Multi

Configuring the Location Table8-10 PortMaster Configuration GuideSetting the Idle TimerYou can set the idle timer for a location with manual or on-dem

Configuring Dial-Out Connections 8-11Setting Multiline Load BalancingTo set CHAP authentication for a location, use the following command:Command>

Contentsxiv Configuration Guide for PortMaster ProductsUsing ISDN for On-Demand Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Multiline Load Balancing8-12 PortMaster Configuration GuideThe following settings are used to configure load balancing and define when additio

Configuring Dial-Out Connections 8-13Setting FiltersThis value is used only when the maximum number of ports is greater than one. The default high-wat

Testing Your Location Configuration8-14 PortMaster Configuration GuideTesting Your Location ConfigurationWhen you are configuring a location, you can

9-1Configuring Filters9This chapter describes how to configure input and output packet filters. IP, IPX, and Service Advertising Protocol (SAP) rules

Overview of PortMaster Filtering9-2 PortMaster Configuration GuideYou use Ethernet filters to constrain the types of packets allowed to pass through t

Configuring Filters 9-3Overview of PortMaster FilteringFilter OrganizationFilters are stored in a filter table in the PortMaster nonvolatile configura

Overview of PortMaster Filtering9-4 PortMaster Configuration GuideA maximum of 256 filter rules per filter is allowed for the PortMaster 3 and IRX. Fo

Configuring Filters 9-5Creating FiltersCreating FiltersYou construct a filter by creating the filter and then adding rules that permit or deny certain

Creating Filters9-6 PortMaster Configuration GuideCreating IP FiltersYou can create a rule that filters IP packets according to their source and desti

Configuring Filters 9-7Creating FiltersFiltering TCP and UDP PacketsTCP PacketsYou can filter TCP packets by source and destination IP address, or by

ContentsxvConfiguring Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-4Configuring Po

Displaying Filters9-8 PortMaster Configuration GuideCreating SAP FiltersThe Service Advertising Protocol (SAP) is an IPX protocol used over routers an

Configuring Filters 9-9Example FiltersExample FiltersBecause filters are very flexible, you must carefully evaluate the types of traffic that a specif

Example Filters9-10 PortMaster Configuration GuideInput Filter for an Internet ConnectionThe filter in this example is designed as an input filter for

Configuring Filters 9-11Example FiltersInput and Output Filters for FTP PacketsFilters can be used to either permit or deny File Transfer Protocol (FT

Example Filters9-12 PortMaster Configuration GuideThe rules for the input filter are as follows:Command> set filter internet.in 1 permit 0.0.0.0/0

Configuring Filters 9-13Example FiltersRule to Allow Authentication QueriesTo allow authentication queries used by some mailers and FTP servers, add t

Example Filters9-14 PortMaster Configuration GuideIf you use the following example, replace the name server with the IP address or hostname of your In

Configuring Filters 9-15Restricting User AccessRestricting User AccessAccess filters enable you to restrict Telnet or rlogin connections to a specific

Restricting User Access9-16 PortMaster Configuration Guide

10-1Using Modems10This chapter explains how to configure external modems to work with PortMaster products. For information on using the internal digit

Contentsxvi Configuration Guide for PortMaster Products

Modem Functions10-2 PortMaster Configuration GuideDial-up modems that operate over normal telephone lines at speeds of 28,800bps or higher are now ava

Using Modems 10-3Using Automatic Modem ConfigurationA modem table display looks like the following:The modem type is either system or user. System ind

Using Automatic Modem Configuration10-4 PortMaster Configuration GuideTable 10-1 shows the current factory default settings for commonly used modems.T

Using Modems 10-5Using Automatic Modem Configurationmot-pwr-p Motorola Power 14.4 PCMCIA57600 AT&F&C1&T5&C1&D2&Wmot-life-p Mot

Using Automatic Modem Configuration10-6 PortMaster Configuration GuideAssociating a Modem with a PortTo automatically configure a modem and associate

Using Modems 10-7Configuring Ports for Modem UseTo configure all ports for the same modem type, use all instead of the port number in the previous exa

Configuring Ports for Modem Use10-8 PortMaster Configuration GuideSetting Modem ControlSet modem control on if you want to use the DCD signal for mode

Using Modems 10-9Configuring Ports for Modem UseTo set software flow control for a modem, use the following command:Command> set S0 xon/xoff on|off

Configuring Ports for Modem Use10-10 PortMaster Configuration Guide

11-1Configuring the PortMaster 3 11This chapter describes how to use the command line interface to configure the ISDN Primary Rate Interface (PRI) Lin

xviiAbout This GuideThe PortMaster® Configuration Guide provides general information about networking and network configuration as well as specific in

Configuring General Settings11-2 PortMaster Configuration GuideCommand> show Line0Configuring Line UseYou can use a line as a single E1 or T1 line,

Configuring the PortMaster 3 11-3Setting the Inband Signaling Protocol for T1Warning – If you configure a line for fractional T1 and reboot the PortMa

Setting the Inband Signaling Protocol for E111-4 PortMaster Configuration GuideSetting the Inband Signaling Protocol for E1Although PortMasters do not

Configuring the PortMaster 3 11-5Configuring ISDN PRI SettingsConfiguring ISDN PRI Settings Use the following settings to configure ISDN PRI on the Po

Configuring ISDN PRI Settings11-6 PortMaster Configuration GuideTo set the framing format used for the E1 or T1 line, use the following command. Table

Configuring the PortMaster 3 11-7Configuring ISDN PRI SettingsSetting the Pulse Code ModulationYou need to set the pulse code modulation only if you a

Using True Digital Modems11-8 PortMaster Configuration GuideTable 11-9Directory Number OptionsUsing True Digital ModemsUse the following settings to c

Configuring the PortMaster 3 11-9Using True Digital ModemsHot-Swapping Digital Modem CardsWith the lastcall feature, you can hot-swap a modem card wit

Using Channelized T111-10 PortMaster Configuration Guide• TEST—under test• DOWN—unavailableTo display the status for all modems, use the following com

Configuring the PortMaster 3 11-11Using Channelized T1Configuring the PortMaster 3 for Channelized T1Follow these steps to configure the PortMaster 3

PortMaster Documentationxviii PortMaster Configuration GuideThe manuals are also provided as PDF and PostScript files on the PortMaster Software CD sh

Using the T1 Expansion Card11-12 PortMaster Configuration GuideTo display the line configuration for line 1, for example, enter the following command:

Configuring the PortMaster 3 11-13Using the T1 Expansion CardWhen you specify internal, the built-in 1.544MHz crystal sets timing on the line. This is

Using the T1 Expansion Card11-14 PortMaster Configuration GuideTroubleshooting the T1 Expansion CardIf the T1 expansion card is not properly installed

Configuring the PortMaster 3 11-15Using Multichassis PPPUsing Multichassis PPPMultichassis PPP allows the use of Multilink PPP across multiple PortMas

Troubleshooting the PortMaster 311-16 PortMaster Configuration GuideTroubleshooting the PortMaster 3The debug command is useful for troubleshooting t

12-1Using ISDN BRI12This chapter describes how to configure the PortMaster to connect two local area networks (LANs) via ISDN using V.25bis dialing on

Overview of ISDN BRI Connections12-2 PortMaster Configuration GuideFor the ISDN S/T interface, a PortMaster requires an external terminal adapter to c

Using ISDN BRI 12-3Overview of ISDN BRI ConnectionsFigure 12-1Example of an ISDN ConnectionProvisioningTo help you determine the kind of provisioning

Configuring ISDN12-4 PortMaster Configuration GuideConfiguring ISDNThis section describes the commands that you need to configure a PortMaster for ISD

Using ISDN BRI 12-5Configuring ISDNSetting the Switch TypeTo set the ISDN switch type for an ISDN BRI U interface, use the following commands:Command&

About This Guide xixAdditional References• PortMaster Troubleshooting GuideThis guide can be used to identify and solve software and hardware problems

Configuring ISDN12-6 PortMaster Configuration GuideTerminal Identifier (TID) for ISDN BRIThe terminal identifier (TID) is a numeric value used by some

Using ISDN BRI 12-7Configuring ISDNNote – numberauto is off by default.Setting the Number TypeTo change the number type from the default manufacturer

Configuring ISDN12-8 PortMaster Configuration GuideMultiple Subscriber Network for an S/T InterfaceFor countries that support BRI via the S/T bus inte

Using ISDN BRI 12-9ISDN Port Configuration TipsISDN Port Configuration TipsUse the following tips to help you configure your ISDN BRI port:• Modem con

ISDN BRI Unnumbered IP Configuration Example12-10 PortMaster Configuration Guide2. Configure the following settings for the PortMaster in Denver:a. Co

Using ISDN BRI 12-11ISDN BRI Unnumbered IP Configuration ExampleFor comparison, Figure 12-3 shows a similar configuration using ISDN BRI with numbered

ISDN BRI Unnumbered IP Configuration Example12-12 PortMaster Configuration GuideConfiguring Ethernet IP Interface Settings Configure the following Eth

Using ISDN BRI 12-13ISDN BRI Unnumbered IP Configuration ExampleTable 12-5ISDN Port ValuesAll the other parameters should be left at their default val

ISDN BRI Unnumbered IP Configuration Example12-14 PortMaster Configuration GuideAfter you configure the user table as shown in Table 12-6, enter the f

Using ISDN BRI 12-15ISDN BRI Unnumbered IP Configuration ExampleNote – Configuring the maximum ports setting to a value higher than 0 causes the PortM

Copyright and Trademarks© 1995, 1997, 1998 Lucent Technologies. All rights reserved. PortMaster, ComOS, and ChoiceNet are registered trademarks of Luc

Additional Referencesxx PortMaster Configuration GuideRFC 1587, OSPF NSSA OptionsRFC 1597, Address Allocations for Private InternetsRFC 1627, Network

ISDN BRI Unnumbered IP Configuration Example12-16 PortMaster Configuration GuideConfiguring Global Settings Configure the global settings to the value

Using ISDN BRI 12-17ISDN BRI Unnumbered IP Configuration ExampleAfter you configure the Ethernet interface as shown in Table 12-9, enter the following

ISDN BRI Unnumbered IP Configuration Example12-18 PortMaster Configuration GuideConfiguring a Dial-In UserA user account must be set up on the PortMas

Using ISDN BRI 12-19ISDN BRI Unnumbered IP Configuration ExampleConfiguring a Dial-Out LocationA location entry on the PortMaster in San Francisco mus

ISDN BRI Unnumbered IP Configuration Example12-20 PortMaster Configuration GuideNote – Configuring the maximum ports setting to a value higher than 0

Using ISDN BRI 12-21Troubleshooting an ISDN BRI Connection4. If you notice a problem, do the following:a. Reset the port on the PortMaster in Denver.b

Troubleshooting an ISDN BRI Connection12-22 PortMaster Configuration Guide• To view the PPP negotiation, enter the following commands:Command> set

13-1Using Frame Relay13Frame Relay is a method of encapsulating network information that allows for fast delivery and high line utilization. PortMaste

Overview of Frame Relay13-2 PortMaster Configuration GuidePVCs and DLCIsPortMaster products support permanent virtual circuits (PVCs). PVCs are used t

Using Frame Relay 13-3Overview of Frame RelayDiscarding FramesThe PortMaster pushes as much data out of the serial port as it can at port speed for an

About This Guide xxiAdditional ReferencesITU-T RecommendationsThe following documents are recommendations of the International Telecommunication Union

Frame Relay Configuration on the PortMaster13-4 PortMaster Configuration GuideFrame Relay Configuration on the PortMasterYou configure Frame Relay by

Using Frame Relay 13-5Frame Relay Configuration on the PortMasterFigure 13-1Frame Relay ConfigurationEnabling LMIYou can specify whether the PortMaste

Frame Relay Configuration on the PortMaster13-6 PortMaster Configuration GuideNote – Contact your Frame Relay carrier to determine which keepalive the

Using Frame Relay 13-7Configuration Steps for a Frame Relay ConnectionConfiguration Steps for a Frame Relay ConnectionThe example described in this ch

Configuration Steps for a Frame Relay Connection13-8 PortMaster Configuration GuideConfiguring the PortMaster in BangkokConfigure the settings for the

Using Frame Relay 13-9Configuration Steps for a Frame Relay ConnectionFor more information on Ethernet parameters, refer to Chapter 4, “Configuring th

Configuration Steps for a Frame Relay Connection13-10 PortMaster Configuration GuideConfiguring Ethernet Interface SettingsConfigure the Ethernet inte

Using Frame Relay 13-11Troubleshooting a Frame Relay ConfigurationAfter you configure the synchronous WAN port as shown in Table 13-5, enter the follo

Frame Relay Subinterfaces13-12 PortMaster Configuration Guide• Verify that you are using the correct cables and that they are attached securely to the

Using Frame Relay 13-13Frame Relay SubinterfacesAdding a LocationTo configure a Frame Relay subinterface, you add a location for each interface, confi

Document Conventionsxxii PortMaster Configuration GuideRouting in the Internet. Christian Huitema. Prentice Hall PTR, 1995. (ISBN 0-13-132192-7)TCP/IP

Frame Relay Subinterfaces13-14 PortMaster Configuration GuideTroubleshooting SubinterfacesPackets received on a subinterface can be identified as belo

Using Frame Relay 13-15Frame Relay SubinterfacesExample: Configuring a Frame Relay SubinterfaceThis set of example commands configures a PortMaster IR

Frame Relay Subinterfaces13-16 PortMaster Configuration Guide

14-1Using Synchronous V.25bis Connections14This chapter uses an example to demonstrate how to configure the PortMaster to connect two local area netwo

Overview of Synchronous V.25bis Dial-Up Connections14-2 PortMaster Configuration Guiderequires only 8 bits. A 115.2Kbps DTE rate cannot properly suppo

Using Synchronous V.25bis Connections 14-3Configuration Steps for a Synchronous V.25bis ConnectionConfiguration Steps for a Synchronous V.25bis Connec

Configuration Steps for a Synchronous V.25bis Connection14-4 PortMaster Configuration GuideConfiguring Global Settings Configure the global settings t

Using Synchronous V.25bis Connections 14-5Configuration Steps for a Synchronous V.25bis ConnectionFor more information on Ethernet settings, refer to

Configuration Steps for a Synchronous V.25bis Connection14-6 PortMaster Configuration GuideAfter you configure user table settings as shown in Table 1

Using Synchronous V.25bis Connections 14-7Configuration Steps for a Synchronous V.25bis ConnectionNote – Configuring the maximum ports setting to a va

About This Guide xxiiiDocument AdvisoriesDocument AdvisoriesNote – means take note. Notes contain information of importance or special interest.Cautio

Configuration Steps for a Synchronous V.25bis Connection14-8 PortMaster Configuration GuideConfiguring Global Settings Configure the following global

Using Synchronous V.25bis Connections 14-9Configuration Steps for a Synchronous V.25bis ConnectionAfter you configure the Ethernet interface as shown

Configuration Steps for a Synchronous V.25bis Connection14-10 PortMaster Configuration GuideConfiguring a Dial-In UserA user account must be set up on

Using Synchronous V.25bis Connections 14-11Configuration Steps for a Synchronous V.25bis ConnectionConfiguring a Dial-Out LocationA location entry on

Configuration Steps for a Synchronous V.25bis Connection14-12 PortMaster Configuration GuideTesting the ConfigurationThe configuration should be teste

Using Synchronous V.25bis Connections 14-13Troubleshooting a Synchronous V.25bis ConnectionTroubleshooting a Synchronous V.25bis ConnectionMost synchr

Troubleshooting a Synchronous V.25bis Connection14-14 PortMaster Configuration Guide

15-1Using Office-to-Office Connections15This chapter uses an example to demonstrate how to configure the PortMaster to connect your office to another

Overview of Example Configuration15-2 PortMaster Configuration Guideused as a console, or with an external modem and a straight-through cable connecte

Using Office-to-Office Connections 15-3Configuration Steps for an Office-to-Office ConnectionThe example in this chapter uses the PCMCIA asynchronous

PortMaster Training Coursesxxiv PortMaster Configuration GuideFor the EMEA RegionIf you are an Internet service provider (ISP) or other end user in Eu

Configuration Steps for an Office-to-Office Connection15-4 PortMaster Configuration GuideConfiguring the Office Router in LondonConfigure the followin

Using Office-to-Office Connections 15-5Configuration Steps for an Office-to-Office ConnectionAfter you configure the Ethernet interface as shown in Ta

Configuration Steps for an Office-to-Office Connection15-6 PortMaster Configuration GuideAfter you configure the port as shown in Table 15-3, enter th

Using Office-to-Office Connections 15-7Configuration Steps for an Office-to-Office ConnectionDial-Out Location Settings for LondonYou must create a lo

Configuration Steps for an Office-to-Office Connection15-8 PortMaster Configuration GuideAfter you configure the location table as shown in Table 15-5

Using Office-to-Office Connections 15-9Configuration Steps for an Office-to-Office ConnectionConfiguring Dial-Out Port Settings For all ports on the P

Configuration Steps for an Office-to-Office Connection15-10 PortMaster Configuration GuideConfiguring a Dial-In UserA user account must be set up on t

Using Office-to-Office Connections 15-11Configuration Steps for an Office-to-Office ConnectionConfiguring Dial-Out Location Settings You must create a

Configuration Steps for an Office-to-Office Connection15-12 PortMaster Configuration GuideNote – Configuring the maximum ports setting to a value high

Using Office-to-Office Connections 15-13Setting the Console Port for Multiline Load Balancing4. If you notice a problem, do the following:a. Reset the

About This Guide xxvSubscribing to PortMaster Mailing ListsSubscribing to PortMaster Mailing ListsLucent maintains the following Internet mailing list

Setting the Console Port for Multiline Load Balancing15-14 PortMaster Configuration GuideFigure 15-2Multiline Load Balancing To enable multiline load

Using Office-to-Office Connections 15-15Using ISDN for On-Demand ConnectionsThe value of the high-water mark depends on the type of traffic and how ma

Using ISDN for On-Demand Connections15-16 PortMaster Configuration Guide

16-1Using Internet Connections16This chapter uses an example to demonstrate how to configure the PortMaster to establish a continuous connection to an

16-2 PortMaster Configuration GuideFigure 16-1Continuous Internet ConnectionSystem Link NetworkPortMaster Office Router1182001011820010PortMasterInter

Using Internet Connections 16-3Overview of Continuous Internet ConnectionsOverview of Continuous Internet ConnectionsYou can configure two types of co

Configuration Steps for an Internet Connection16-4 PortMaster Configuration Guidec. Serial port settings (page 16-5 or page 16-6).d. Dial-out location

Using Internet Connections 16-5Configuration Steps for an Internet ConnectionAfter configuring the Ethernet interface, enter the following commands to

Configuration Steps for an Internet Connection16-6 PortMaster Configuration GuideLeave all other settings at their default values. After configuring t

Using Internet Connections 16-7Configuration Steps for an Internet ConnectionFor more information about asynchronous ports, refer to Chapter 5, “Confi

Subscribing to PortMaster Mailing Listsxxvi PortMaster Configuration Guide

Configuration Steps for an Internet Connection16-8 PortMaster Configuration GuideNote – Configuring the maximum ports setting to a value higher than 0

Using Internet Connections 16-9Configuration Steps for an Internet Connection4. If you notice a problem, do the following:a. Reset the port.b. Check y

Providing Network Filtering16-10 PortMaster Configuration GuideProviding Network FilteringYour connection to the Internet can be vulnerable to attack

Using Internet Connections 16-11Using ISDN for Internet ConnectionsIf your domain name server is outside your local network, refer to “Input and Outpu

Using ISDN for Internet Connections16-12 PortMaster Configuration Guide

17-1Providing User Dial-In Access17This chapter uses an example to demonstrate how to configure a PortMaster for remote dial-in access to local hosts

Overview of Dial-In Configuration17-2 PortMaster Configuration GuideThe same application can be used by companies to allow remote users to access thei

Providing User Dial-In Access 17-3Overview of Dial-In ConfigurationExample ConfigurationThe example described in this chapter uses the values shown in

Configuration Steps for Dial-In Access17-4 PortMaster Configuration GuideYou can set the assigned pool numbers a little closer together as long as the

Providing User Dial-In Access 17-5Configuration Steps for Dial-In AccessNote – This example describes how to configure the first PortMaster, pm1.edu.c

1-1Introduction1This chapter discusses the following topics:• “PortMaster Software” on page 1-1• “Preconfiguration Planning” on page 1-2• “Configurati

Configuration Steps for Dial-In Access17-6 PortMaster Configuration GuideFor more information about global settings, refer to Chapter 3, “Configuring

Providing User Dial-In Access 17-7Configuration Steps for Dial-In Accesstable described in Chapter 10, “Using Modems,” to configure the attached modem

Configuration Steps for Dial-In Access17-8 PortMaster Configuration GuideAfter you configure the ports as shown in Table 17-4, enter the following com

Providing User Dial-In Access 17-9Configuration Steps for Dial-In AccessAfter configuring RADIUS settings as shown in Table 17-5, use the following co

Configuration Steps for Dial-In Access17-10 PortMaster Configuration GuideA user account must be set up on the PortMaster for each authorized network

Providing User Dial-In Access 17-11Configuration Steps for Dial-In Access3. If everything connects as expected, turn off debugging and save the config

Configuration Steps for Dial-In Access17-12 PortMaster Configuration Guide

18-1Accessing Shared Devices18This chapter uses an example to demonstrate how to configure the PortMaster to connect from networked hosts to shared de

Overview of Shared Device Access Methods18-2 PortMaster Configuration GuideOnce a port is defined as a host device, you configure it with the PortMast

Accessing Shared Devices 18-3Overview of Shared Device Access MethodsPortMaster port for configuration purposes. In this application, each port is ide

Preconfiguration Planning1-2 PortMaster Configuration Guide• RADIUS—The RADIUS server, radiusd, runs as a daemon on UNIX systems, providing centralize

Configuration Steps for Shared Device Access18-4 PortMaster Configuration GuideConfiguration Steps for Shared Device AccessTo install your PortMaster,

Accessing Shared Devices 18-5Configuration Steps for Shared Device AccessAfter you configure global settings as shown in Table 18-1, enter the followi

Configuration Steps for Shared Device Access18-6 PortMaster Configuration GuideLeave all other settings at their default values. After you configure p

Accessing Shared Devices 18-7Configuration Steps for Shared Device AccessSerial Printer Port (S9) SettingsIn the example, a serial printer is connecte

Configuration Steps for Shared Device Access18-8 PortMaster Configuration GuideParallel Port (P0) SettingsYou can also configure the parallel port P0

Accessing Shared Devices 18-9Configuration Steps for Shared Device AccessThe value pm1 is the hostname of the PortMaster you are accessing, and 6001 i

Configuration Steps for Shared Device Access18-10 PortMaster Configuration Guide

19-1Using Synchronous Leased Lines19This chapter uses an example to demonstrate how to configure the PortMaster to connect to a synchronous leased lin

Overview of Leased Line Connections19-2 PortMaster Configuration GuideFigure 19-1Leased Line ConfigurationIf you are connecting two networks together

Using Synchronous Leased Lines 19-3Configuration Steps for Leased Line Connectionssignal, you do not need to set the speed on the synchronous port. Th

Introduction 1-3Configuration Tips• Are you running IP, IPX, or both?• Do you want to enable SNMP for network monitoring?• Do you want dial-in only, d

Configuration Steps for Leased Line Connections19-4 PortMaster Configuration GuideConfiguring the PortMaster Office Router in RomeConfigure the settin

Using Synchronous Leased Lines 19-5Configuration Steps for Leased Line ConnectionsAfter you configure the Ethernet interface as shown in Table 19-2, e

Configuration Steps for Leased Line Connections19-6 PortMaster Configuration GuideConfiguring the PortMaster Office Router in FlorenceConfigure the se

Using Synchronous Leased Lines 19-7Configuration Steps for Leased Line ConnectionsAfter you configure the Ethernet interface as shown in Table 19-5, e

Troubleshooting a Leased Line Connection19-8 PortMaster Configuration GuideTroubleshooting a Leased Line ConnectionUse the information in this section

Using Synchronous Leased Lines 19-9Troubleshooting a Leased Line Connection• If you still have problems, enter the following commands:Command> set

Troubleshooting a Leased Line Connection19-10 PortMaster Configuration Guide

A-1Networking ConceptsAThis chapter describes general network concepts that you must understand before you configure your PortMaster. This chapter dis

Network AddressingA-2 PortMaster Configuration GuideIP Address NotationIP addresses are written in dotted decimal notation consisting of four numbers

Networking Concepts A-3Network AddressingClass A AddressesThe class A IP address format allocates the highest 8 bits to the network field and sets the

iiiContentsAbout This GuideAudience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Basic Configuration Steps1-4 PortMaster Configuration GuideBasic Configuration StepsThe exact PortMaster configuration steps you follow depend upon th

Network AddressingA-4 PortMaster Configuration GuideClass C AddressesThe class C IP address format allocates the highest 24 bits to the network field

Networking Concepts A-5Network AddressingReserved IP AddressesSome IP addresses are reserved for special uses and cannot be used for host addresses. T

Network AddressingA-6 PortMaster Configuration GuideIP Address ConventionsIf the bits in the host portion of an address are all 0, that address refers

Networking Concepts A-7Network AddressingNetmasksA netmask is a four-octet number that identifies either a supernetwork (supernet) or a subnetwork (su

Using Naming Services and the Host TableA-8 PortMaster Configuration GuideSubnetting, Routing, and VLSMsRouters and hosts can use the subnet field for

Networking Concepts A-9Managing Network SecurityThe PortMaster enables you to specify an internal host table, which can be used in addition to DNS and

Managing Network SecurityA-10 PortMaster Configuration GuideEach of these security methods is described in more detail in this guide. All or some of t

B-1TCP and UDP Ports and ServicesBTable B-1 lists common port numbers—well-known ports—assigned to TCP and UDP services—well-known services—by the Int

B-2 PortMaster Configuration Guidekerberos 88 TCP Kerberos authenticationkerberos 88 UDP Kerberos authenticationpop3 110 TCP Post Office Protocol

TCP and UDP Ports and Services B-3ntalk 518 TCP Newer version of Terminal-to-terminal chatrouter 520 UDP Routing Information Protocol (RIP)uucp 54

Introduction 1-5Basic Configuration StepsISDN PRI connection configuration is described in Chapter 11, “Configuring the PortMaster 3.” ISDN BRI connec

B-4 PortMaster Configuration Guide

Glossary-1GlossaryAabort errorAn error indicating an attempted and failed connection.acceptance policyA set of rules that determine the path and route

GlossaryGlossary-2 PortMaster Configuration GuideaggregationThe process of combining multiple prefixes from one or several routes so that a single pre

GlossaryGlossary-3autonomous system border router In OSPF, a router that exchanges information with routers from other autonomous systems. Autonomous

GlossaryGlossary-4 PortMaster Configuration GuidebaudThe number of discrete signal events per second occurring on a communications channel. Although n

GlossaryGlossary-5bps Bits per second. A unit for measuring the data rate.BRIBasic Rate Interface. An ISDN interface that consists of two 64Kbps B cha

GlossaryGlossary-6 PortMaster Configuration GuideCHAPChallenge Handshake Authentication Protocol. A Point-to-Point Protocol (PPP) authentication metho

GlossaryGlossary-7committed information rateSee CIR.communityA label that identifies a group of BGP destinations for the purpose of policy enforcement

GlossaryGlossary-8 PortMaster Configuration Guideconfederation member autonomous system See CMAS.console portA serial port on a PortMaster attached to

GlossaryGlossary-9DCEData communications equipment. Devices and connections of a communications network that make up the network end of the interface

Basic Configuration Steps1-6 PortMaster Configuration Guide

GlossaryGlossary-10 PortMaster Configuration Guidedigital service unitSee DSU.direct memory accessSee DMA.DLCIData link connection identifier. A uniqu

GlossaryGlossary-11DTEData terminal equipment. A device at the user end of the interface between the network and the user. The DTE connects to a data

GlossaryGlossary-12 PortMaster Configuration GuideEBGPExterior BGP. The BGP used between peers in different autonomous systems, or, when confederation

GlossaryGlossary-13filterGenerally, a process or device that screens network traffic for certain characteristics, such as source address, destination

GlossaryGlossary-14 PortMaster Configuration GuideGgatewayA device that connects two or more networks that use different protocols. Gateways provide a

GlossaryGlossary-15hostA single, addressable device on a network. Computers, networked printers, and routers are hosts.hunt groupA group of multiple t

GlossaryGlossary-16 PortMaster Configuration GuideIntegrated Services Digital NetworkSee ISDN. Interior BGPSee IBGP.internal peerA peer that resides i

GlossaryGlossary-17IPInternet Protocol. The protocol defined in RFC 791.IP addressA 32-bit number assigned by the system administrator, usually writte

GlossaryGlossary-18 PortMaster Configuration GuideISOInternational Organization for Standards. The international organization that sets standards for

GlossaryGlossary-19LCPLink Control Protocol. The protocol used by the Point-to-Point Protocol (PPP) for establishing, configuring, and testing the dat

2-1How the PortMaster Works2This chapter summarizes PortMaster operation and capabilities so you can choose how to configure your system. Consult the

GlossaryGlossary-20 PortMaster Configuration GuidelocationA dial-out destination.location tableA database on the PortMaster where location settings ar

GlossaryGlossary-21maximum transmission unitSee MTU.MBMegabyte(s). 1,048,576 bytes.MbpsMegabits per second. A unit for measuring data rates.MD5Message

GlossaryGlossary-22 PortMaster Configuration GuideMultichassis PPPMultilink PPP over two or more chassis.Multilink PPPA protocol defined in RFC 1990 t

GlossaryGlossary-23neighbor(1) In OSPF, two routers that have interfaces to a common network are neighbors. On multiaccess networks, neighbors are dyn

GlossaryGlossary-24 PortMaster Configuration GuideNIC Network interface card. A card that provides network communication capabilities to and from a co

GlossaryGlossary-25NT1Network termination 1 device. The device that provides an interface between the ISDN Basic Rate Interface (BRI) line used by the

GlossaryGlossary-26 PortMaster Configuration Guideout-of-band connectionA remote connection, or a connection outside connected networks, established o

GlossaryGlossary-27(2) In Multichassis PPP, the relationship between a master and slave. A peer is distinct from a neighbor.permanent virtual circuitS

GlossaryGlossary-28 PortMaster Configuration GuidePRIPrimary Rate Interface. The ISDN interface to primary rate access. Primary rate access consists o

GlossaryGlossary-29RARPReverse Address Resolution Protocol. A protocol used in network routers that provides a method for finding IP addresses based o

Booting the PortMaster2-2 PortMaster Configuration Guidethen attempts to boot itself across the network using the Trivial File Transfer Protocol (TFTP

GlossaryGlossary-30 PortMaster Configuration Guideroute reflectionIn BGP, a method for maintaining path and attribute information across an autonomous

GlossaryGlossary-31SSAPService Advertisement Protocol. An IPX protocol that provides a means of informing network clients, via routers and servers, of

GlossaryGlossary-32 PortMaster Configuration GuideSNMPSimple Network Management Protocol. A protocol defined in RFC 1157, used for communication betwe

GlossaryGlossary-33switched virtual circuitSee SVC.TT1Digital WAN carrier facility used to transmit data formatted for digital signal level 1 (DS-1) a

GlossaryGlossary-34 PortMaster Configuration Guidetransit serviceIn BGP, the function provided by an autonomous system that is in the path of a route

GlossaryGlossary-35User Datagram ProtocolSee UDP.UUCPUNIX-to-UNIX Copy Program. Interactive communication system for connecting two UNIX computers to

GlossaryGlossary-36 PortMaster Configuration Guidevirtual connectionIn Multichassis PPP, a connection made when a slave forwards all the packets it re

Command Index-1Command IndexAadd dlci 13-15add filter 9-5add location 8-3, 12-14, 12-19, 13-15, 14-6, 14-11, 15-7, 15-11, 16-7ad

Command IndexCommand Index-2 PortMaster Configuration Guideset debug 12-20, 12-22, 13-12, 13-14, 14-12, 14-13, 15-12, 16-8, 17-10,

Command IndexCommand Index-3set location manual 8-5, 12-14, 12-19, 14-6, 14-11, 15-7, 16-7set location map 8-11set location maxports

How the PortMaster Works 2-3PortMaster InitializationPortMaster InitializationOnce the PortMaster has successfully booted, it does the following:1. Et

Command IndexCommand Index-4 PortMaster Configuration Guideset S0 override 5-3set S0 parity 10-8set S0 prompt 5-5set S0 protocol 5-21, 16-5,

Command IndexCommand Index-5show filter 9-8show ipxroutes 3-24show Line0 11-2, 11-11show location 13-13show M0 11-9show mcppp 11-15show

Command IndexCommand Index-6 PortMaster Configuration Guide

Subject Index-1Subject IndexAaccess filterscreating 9-1restricting user access to hosts 7-11address poolscreating 3-12example 17-4size 3-13addresses.

Subject IndexSubject Index-2 PortMaster Configuration Guidebroadcast packets, type 20 3-29broadcast, high and low 4-4burst speed 13-2Ccallbackconfigur

Subject IndexSubject Index-3configuration tip 1-3defining 12-13, 14-5, 14-10ISDN connections 12-18maximum ports 7-8network users 17-10dial-in-only acc

Subject IndexSubject Index-4 PortMaster Configuration Guideadding rules 9-5asynchronous ports 5-25attaching 9-4authentication queries 9-13ChoiceNet 1-

Subject IndexSubject Index-5default routing 3-6gateway for IP 3-25gateway for IPX 3-25host table 3-7IP address assignment 3-12name service 3-7password

Subject IndexSubject Index-6 PortMaster Configuration Guidedefault gateway, setting 3-6displaying routing table entries 3-24enabling traffic 4-5encaps

Subject IndexSubject Index-7locationsdefining 8-1, 12-14, 14-6, 15-7, 16-7logging in to a remote host 5-2loghost, setting 3-10login host 5-11, 7-10def

On-Demand Connections2-4 PortMaster Configuration GuideOn-Demand ConnectionsThe PortMaster establishes on-demand connections in the following way:• Wh

Subject IndexSubject Index-8 PortMaster Configuration GuideNname resolution 3-6name service A-8disabling 3-8setting 3-7negotiating IP addresses 5-22,

Subject IndexSubject Index-9displaying line status 11-1enabling analog modem service 11-10enabling modems 11-9enabling Multichassis PPP support 11-16e

Subject IndexSubject Index-10 PortMaster Configuration Guide2003 9-62139 A-10988 A-4RIPasynchronous ports 5-23network users 7-6on Ethernet 4-1routing,

Subject IndexSubject Index-11BRI 12-4PRI 11-6switched 56Kbps connections 14-1synchronous leased lines 19-1synchronous portsconnection type 6-4descript

Subject IndexSubject Index-12 PortMaster Configuration Guidepackets, filtering 9-7services and ports B-1user login configuration 5-8user tableaccess f

How the PortMaster Works 2-5Port Status and ConfigurationAccess can also be denied if the specified login service is unavailable—for example, if the P

Port Status and Configuration2-6 PortMaster Configuration GuideTable 2-2PortMaster Port Status Status DescriptionIDLE The port is not in use.USERNAME

3-1Configuring Global Settings 3This chapter describes how to configure settings that the PortMaster uses across all its ports and interfaces. This ch

Contentsiv Configuration Guide for PortMaster ProductsOn-Demand Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting the System Name3-2 PortMaster Configuration GuideSee the PortMaster Command Line Reference for more detailed command descriptions and instruct

Configuring Global Settings 3-3Setting the Dynamic Host Control Protocol (DHCP) ServerUse the following command to configure a PortMaster product to f

Setting the Dynamic Host Control Protocol (DHCP) Server3-4 PortMaster Configuration GuideFigure 3-1Cable Modem Telephone Return Interface StartupInter

Configuring Global Settings 3-5Setting the Default Route Gateway1. Using the telephone interface, the cable modem dials the PortMaster and establishes

Configuring Default Routing3-6 PortMaster Configuration GuideYou can set a metric between 1 and 15 for the IP and IPX gateways to indicate the hop cou

Configuring Global Settings 3-7Configuring Name ResolutionUsing the Host TableEach host attached to an IP network is assigned a unique IP address. Eve

Configuring Name Resolution3-8 PortMaster Configuration GuideTo set the name service, use the following command:Command> set namesvc dns|nisOnce th

Configuring Global Settings 3-9Setting the Telnet PortSetting the Telnet PortThe Telnet access port can be set to any number between 0 and 65535. The

Setting System Logging3-10 PortMaster Configuration GuideSetting the LoghostTo set the IP address of the loghost—the host to which the PortMaster send

Configuring Global Settings 3-11Setting System LoggingYou can change the facility, the priority, or both, of log messages. To change the facility or p

ContentsvPortMaster Modem Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20Setting SNMP Mon

Setting Administrative Logins to Serial Ports3-12 PortMaster Configuration GuideTo determine current syslog settings, enter the following command:Comm

Configuring Global Settings 3-13Setting the Reported IP AddressThe default number of addresses available for the address pool is equal to the number o

Configuring SNMP3-14 PortMaster Configuration GuideThe SNMP agent returns values for management information base (MIB) variables that can be changed o

Configuring Global Settings 3-15Configuring SNMPFigure 3-2Management Information Base (MIB) Hierarchyunnamed0CCITT1iso3org6dod1internet2mgmt2jointISO/

Configuring SNMP3-16 PortMaster Configuration GuideFigure 3-3 shows the tree structure of the private Livingston portion of the MIB.Figure 3-3Part of

Configuring Global Settings 3-17Configuring SNMPThe SNMP manager queries the agents by means of OIDs. Each OID uniquely identifies a single MIB variab

Configuring SNMP3-18 PortMaster Configuration GuideDirection Direction in which the active session was initiated.PortStatus Status of the serial inter

Configuring Global Settings 3-19Configuring SNMPPortMaster T1/E1 InterfacesTable 3-7 lists the objects in the T1/E1 interfaces from the Livingston Ext

Configuring SNMP3-20 PortMaster Configuration GuidePortMaster Modem TableTable 3-8, lists the objects in the modem table from the Livingston Extension

Configuring Global Settings 3-21Configuring SNMPSetting SNMP MonitoringSimple network management protocol (SNMP) monitoring is used to set and collect

Contentsvi Configuration Guide for PortMaster ProductsConfiguring Ethernet Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring SNMP3-22 PortMaster Configuration Guideinformation can be set on the SNMP agent. The default write community string is private. Community

Configuring Global Settings 3-23Displaying the Routing TableViewing SNMP SettingsSettings for SNMP monitoring, read and write community strings, and r

Setting Static Routes3-24 PortMaster Configuration GuideTo display the IPX routing table entries, enter the following command: Command> show ipxrou

Configuring Global Settings 3-25Setting Static Routes• Gateway—The address of a locally attached router where packets are sent for forwarding to the d

Setting Static Routes3-26 PortMaster Configuration Guide• Ticks—The time required to send the packet to its destination. Ticks are measured in 50ms in

Configuring Global Settings 3-27Setting Static RoutesFor example, suppose the address of Ether0 is 172.16.1.1 with a 255.255.255.0 subnet mask (a clas

Setting Static Routes3-28 PortMaster Configuration GuideNote – Static routes use the netmask table entries that are in effect when the routes are adde

Configuring Global Settings 3-29Enabling NetBIOS Broadcast Packet PropagationIf your gateway on the Ethernet is not a PortMaster product, the netmask

Setting Call-Check Authentication3-30 PortMaster Configuration GuideIf you set PAP to off, and CHAP to on, dial-in users are asked to authenticate wit

4-1Configuring the Ethernet Interface4This chapter describes how to configure PortMaster Ethernet interfaces and subinterfaces, and includes the follo

ContentsviiNetwork Dial-Out-Only Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17Network Dial-In-an

Setting General Ethernet Parameters4-2 PortMaster Configuration GuideNote – ComOS releases prior to 3.5 use the keyword routing instead of the rip key

Configuring the Ethernet Interface 4-3Setting IP ParametersTo apply an input filter to the Ethernet interface, use the following command:Command> s

Setting IP Parameters4-4 PortMaster Configuration GuideSetting the Subnet MaskThe default subnet mask is 255.255.255.0. If you have divided your netwo

Configuring the Ethernet Interface 4-5Setting Ethernet IPX ParametersTo enable or disable IP traffic, use the following command:Command> set ether0

Setting Ethernet IPX Parameters4-6 PortMaster Configuration GuideTo enable or disable IPX traffic, use the following command:Command> set ether0 ip

Configuring the Ethernet Interface 4-7Configuring Ethernet SubinterfacesConfiguring Ethernet Subinterfaces With the subinterface feature of the ComOS,

Setting OSPF on the Ethernet Interface4-8 PortMaster Configuration GuideYou can view or modify a subinterface with the ifconfig command (see the PortM

5-1Configuring an Asynchronous Port5Each asynchronous port can be configured for several different functions, giving the PortMaster configuration more

Asynchronous Port Uses5-2 PortMaster Configuration Guideoffices dial into a central hub that routes among them, and a mesh where every office can spea

Configuring an Asynchronous Port 5-3General Asynchronous Port Settingsconnection can be established to a specified port on the PortMaster. Once the co

Contentsviii Configuration Guide for PortMaster ProductsSetting the Idle Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Asynchronous Port Settings5-4 PortMaster Configuration GuideTo set the port speed, use the following command—entered on one line:Command> s

Configuring an Asynchronous Port 5-5General Asynchronous Port SettingsSetting the Dial GroupYou can create modem pools for dial-out connections by ass

General Asynchronous Port Settings5-6 PortMaster Configuration GuideSetting the Login MessageThe PortMaster allows you to specify a message for each p

Configuring an Asynchronous Port 5-7General Asynchronous Port SettingsTo enable automatic login for a particular user on a particular port, use the fo

Configuring a PortMaster for Login Users5-8 PortMaster Configuration GuideTo enable the idle timer and set a timeout value, use the following command:

Configuring an Asynchronous Port 5-9Configuring a PortMaster for Login UsersTo configure a PortMaster for user login, use the following steps. These s

Configuring a PortMaster for Login Users5-10 PortMaster Configuration GuideSetting the Login ServiceThe login service specifies how login sessions are

Configuring an Asynchronous Port 5-11Configuring a Port for Access to Shared DevicesSetting the Login HostYou can specify how the login host is determ

Configuring a Port for Access to Shared Devices5-12 PortMaster Configuration GuideYou can provide access to host device ports by establishing a pseudo

Configuring an Asynchronous Port 5-13Configuring a Port for Access to Shared DevicesFigure 5-3Network Device ConfigurationOnce the port type is set to

ContentsixSetting RIP Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7Setting th

Configuring a Port for Access to Shared Devices5-14 PortMaster Configuration GuideSetting the Device ServiceThe device service defines the method used

Configuring an Asynchronous Port 5-15Configuring a Port for Network AccessTelnet Device Service Telnet is a remote terminal protocol supported by most

Configuring a Port for Network Access5-16 PortMaster Configuration GuideWhen you configure a port for network dial-in, dial-out, or two-way access, th

Configuring an Asynchronous Port 5-17Configuring a Port for Network AccessFigure 5-4Dial-In-Only Port AccessNetwork Dial-Out-Only AccessNetwork dial-o

Configuring a Port for Network Access5-18 PortMaster Configuration GuideFigure 5-5Dial-Out-Only AccessNetwork Dial-In-and-Out (Two-Way) AccessDial-in-

Configuring an Asynchronous Port 5-19Configuring a Port for Network AccessTo set a port for network two-way access, use the following commandsCommand&

Configuring a Port for a Dedicated Connection5-20 PortMaster Configuration GuideConfiguring a Port for a Dedicated ConnectionYou can configure an asyn

Configuring an Asynchronous Port 5-21Configuring a Port for a Dedicated ConnectionTo configure a port for a hardwired connection, follow this procedur

Configuring a Port for a Dedicated Connection5-22 PortMaster Configuration GuideSetting the ProtocolThe network protocol for the hardwired port can be

Configuring an Asynchronous Port 5-23Configuring a Port for a Dedicated ConnectionConfiguring RIP RoutingAs described in the PortMaster Routing Guide,