Perle P2600 Instruction Manual

Perle P2600
Perle P2600Perle P2600
Perle P2600
Bridge/Router
User And System
Administration Guide
Part number 5500078-14
© Copyright 2003 by Perle Systems Ltd.

Federal Communications Commission (FCC)
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
Warning: The user is cautioned that modifications to this equipment can void the authority granted by the FCC to operate the equipment
The following repairs may be made by the customer: none.
Canadian Emissions Standard ICES-003
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing
equipment standard entitled “Digital Apparatus”, ICES-003 of the Industry Canada.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme
sur le matériel brouilleur: “Appareils Numériques”, NMB-003 édictée par Industrie Canada.
For products marked with the CE Telecommunications label, the following
declaration applies:
“The manufacturer declares that as shipped from the factory this product is in compliance with the CE Telecommunications Terminal
Equipment Directive 91/263/EEC with the marking applied in respect of this declaration, and in respect of the following
telecommunications interfaces,
X.21(V.11) - NET 1
X.21bis(V.28) and X.21bis(V.35) - NET 2
PSTN ISDN Basic Rate Interface compatible with I.420 - NET 3
The manufacturer further declares that the product conforms with the requirements of the Low Voltage Directive 73/23/EEC and with the
requirements of the EMC Directive 89/336/EEC (for radiated emissions at the Class A level). This product is not intended for residential
applications.”
ISDN Type Approval Labels
Labels for National ISDN Type Approvals can be found on the inside surface of the backpanel of the ISDN module.
Canadian ISDN Approval
The ISDN interface of this device is intended for direct connection to the S/T jack of an NT-1 unit and therefore does not require
Communications Canada certification. The P2600 should only be connected to Communications Canada approved NT-1 units.
Statements for ISDN U Module
NOTICE: The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment
meets certain telecommunications network protective, operational and safety requirements. The Department does not guarantee the
equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local
telecommunication company. The equipment must also be installed using an acceptable method of connection. The customer
should be aware that compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any
repairs or alteration made by the user to this equipment, or equipment malfunctions, may give the telecommunications company
cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal
metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
CAUTION: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or
electrician, as appropriate.

Using This Manual
This Installation and Applications Guide provides the basic information required to initially set up and configure
the P2600 Bridge/Router. This guide is organized into the following sections:
“
Installation ” provides instructions for installing the P2600.
“
Typical Applications & How to Configure Them ” provides simple configuration examples for typical
applications in which the P2600 might be used. The applications described in this document are for example
only and provide a method of quick configuration of the P2600. The applications and corresponding
configuration may be combined if the operation of the P2600 requires more complexity. For more complete
information on all of the configuration parameters available please refer to the appropriate Menu Reference
Manual file for your operating software on the accompanying disks.
“
Introduction to Filtering ” provides an introduction to the pattern filtering options of the P2600. Several
examples of typical pattern filters are also provided.
”
Menu Trees ” provides a graphical tree type overview of the structure of the built-in menu system of the P2600.
All of the configuration is performed using the options provided in the menu system. The Menu Tree is like an
index to the menu options.
“
Configuration Pages ” provides a place to note the current configuration of the P2600 for future reference. If
a replacement unit is required, the configuration may be quickly modified to be the same as the existing unit.
“
Octet Locations on Ethernet Frames ” provides a graphical representation of the various common Ethernet
frames that the P2600 will bridge or route. When defining a pattern filter, these frame displays indicate the offset
values to use in order to define the pattern filter correctly.
“
Servicing Information ” provides information on changing Link interfaces.
“
Interface Pinouts ” provides information on Link interface connectors.
Using The Electronic Reference Manuals
This manual and the P2600 Reference Manuals are provided as Adobe Acrobat PDF files on the accompanying
CD-ROM.
The Adobe Acrobat Reader program required to view the Manuals is also loaded onto the CD-ROM. In addition,
it is available for most computer operating platforms from Adobe on the Internet at: www.adobe.com.
The Reference Manual provides the following information:
Introduction to bridging, routing, and P2600 features,
Pin out references for the link modules,
List of event and alarm logs, and
Expanded description of programmable filtering.
The PPP Menu Reference Manual provides the following information:
Complete description of the options for the built-in menu system, including PPP ISDN, PPP Leased
Line, 1490 Frame Relay and encapsulated PPP Frame Relay.

Contents
1 INSTALLATION 1
Unpack the P2600 Router .................................................................................... 1
Select a Site ............................................................................................................. 1
Identify the Reset Switch...................................................................................... 2
Identify the Connectors ........................................................................................ 2
Connect to the Console ........................................................................................ 3
Make the LAN Connections ................................................................................ 3
Make the Link Connection(s)............................................................................... 4
Power Up the Bridge/Router............................................................................... 5
Managing the P2600 Using the Menus............................................................... 6
Conventions............................................................................................................ 6
Login to Bridge/Router and Enter the Required Configuration.................... 7
Setting the T1/E1Parameters (T1/E1 WAN only) .................................................. 9
Mandatory Configuration.............................................................................................. 11
Identify the Status LEDs ...................................................................................... 12
2 TYPICAL APPLICATIONS & HOW TO CONFIGURE THEM 13
Bridging and Routing ............................................................................................ 14
Bridging............................................................................................................................ 15
IP Routing ....................................................................................................................... 16
IP Addressing............................................................................................................................17
Masks ..........................................................................................................................................18
IP Subnets..................................................................................................................................18
IP Default Gateway..................................................................................................................20
IP Static Route ..........................................................................................................................20
IPX Routing .................................................................................................................... 21
Novell Servers in Both Locations..........................................................................................21
Novell Servers in One Location Only ..................................................................................22
PPP Overview................................................................................................................. 25
PPP Link Configuration..........................................................................................................25
Numbered Links.......................................................................................................................25
Unnumbered Links ..................................................................................................................26
Multilink Operation..................................................................................................................27
Basic Configurations.............................................................................................. 28
Basic ISDN Connections.............................................................................................. 28
Basic Frame Relay Configuration ................................................................................ 31
Auto Learning the Frame Relay Configuration...................................................................32
Manual Configuration - LMI Type........................................................................................33
Quick Start Frame Relay ............................................................................................... 34
Basic Leased Line Configuration ................................................................................. 35
Quick Start PPP Leased Line Connections .........................................................................35
Bridge Connection..............................................................................................................36
IP Router Connection........................................................................................................36
IPX Router Connection.....................................................................................................36
Configure Remote Site Profiles ........................................................................... 37
Configure Remote Site Profiles for ISDN PPP........................................................ 37
Configure Remote Site Profile for Frame Relay ....................................................... 40
Configure Remote Site Profiles for Leased Line PPP ............................................. 43
Configure Remote Site Profiles for Frame Relay with ISDN backup................... 45

Contents
Configure Remote Site Profiles for PPPoE............................................................... 46
Advanced Features .................................................................................................49
Configure Dynamic Host Configuration Protocol................................................... 49
Network Address Translation and Port Translation................................................ 51
Security............................................................................................................................. 53
Configure PPP Security........................................................................................................... 53
Configure Firewall....................................................................................................................55
Network Address Translation................................................................................................58
Filters.......................................................................................................................................... 58
Compression ................................................................................................................... 58
Bandwidth On Demand................................................................................................ 59
QOS - Priority Queuing................................................................................................ 60
Simple Network Time Protocol (SNTP).................................................................... 62
3 INTRODUCTION TO FILTERING 64
MAC Address Filtering..........................................................................................64
Pattern Filtering ......................................................................................................65
Popular Filters.........................................................................................................66
Bridge .......................................................................................................................66
IP & Related Traffic....................................................................................................... 66
Novell IPX Frames ........................................................................................................ 66
NetBIOS &NetBEUI (MS Windows)........................................................................ 66
Banyan.............................................................................................................................. 67
IP Router..................................................................................................................67
NetBIOS over TCP ....................................................................................................... 67
Other interesting TCP Ports ........................................................................................ 67
APPENDIX A MENU TREES 68
APPENDIX B OCTET LOCATIONS ON ETHERNET FRAMES 71
Octet Locations on a Bridged TCP/IP Frame...................................................71
Octet Locations on a Bridged Novell Netware Frame.....................................72
ETHERNET Type Codes ....................................................................................72
Octet Locations on an IP Routed TCP/IP Frame............................................73
Octet Locations on an IPX Routed Novell Netware Frame ...........................73
Octet Locations on a Bridged XNS Frame ........................................................74
APPENDIX C SERVICING INFORMATION 75
Identifying the Internal Components..................................................................75
Main Board Strap Settings ............................................................................................ 75
Changing the Batteries................................................................................................... 76
Changing Link Interfaces ......................................................................................77
To Clear a “Lost” Password .................................................................................77
Performing a Hardware Reset...............................................................................78
Changing the Link Integrity on the 10BaseT LAN Interface ..........................78
Performing a Software Upgrade...........................................................................80
APPENDIX D INTERFACE PINOUTS 3.1
Pinout Information.................................................................................................3.1

Contents
Link Clocking Information................................................................................... 3.1
ATL-CSU/DSU Link Module Information ...................................................... 3.2
CSU/DSU Module: ............................................................................................... 3.3
T1/E1 Module: ...................................................................................................... 3.4
Console Pinouts ..................................................................................................... 3.5
V.24 & RS232C Link Pinouts .............................................................................. 3.6
V.11/X.21 Link Pinouts ...................................................................................... 3.7
RS442 & RS530 Link Pinouts.............................................................................. 3.8
V.35 Link Pinouts .................................................................................................. 3.9
RS232 Null-Modem Cable Configuration.......................................................... 3.10
V.35 Null-Modem Cable Configuration............................................................. 3.11
RS530 Null-Modem Cable Configuration.......................................................... 3.12
RS530 To RS449 Conversion Cable ................................................................... 3.13
V.11/X.21 Null-Modem Cable Configuration .................................................. 3.14

1
1
Installation
The P2600 is a flexible Central Site Ethernet Bridge/Router that may be configured to
support leased lines, ISDN circuits, PPP ISDN circuits, PPP leased lines, and frame relay
permanent virtual circuits.
Up to 14 leased line wide area network (WAN) modules may be installed, with links that
may operate at speeds up to 2.048 Mbps.
Up to 7 ISDN BRI interfaces ISDN-ST or ISDN-U link modules may be installed. Each
ISDN BRI interface supports two 64 Kbps B-channels for a total of 14 B-channels.
Note: ISDN BRI Modules must be mounted with the blank part of the mounting
plate covering an odd numbered slot and connector (with the PC board behind it) in
an even numbered slot (2, 4, 6, 8, 10, 12, 14); i.e. ISDN modules may be mounted in
slot pairs 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, or 13-14.
A mixture of interface modules of different types may be used in a P2600 (ISDN BRI
modules count as two interfaces and must be in even numbered slots as outlined above).
The following instructions provide a quick set-up guide for installation of the P2600
Ethernet Bridge/Router:
Unpack the P2600 Router
Rough handling during shipment can damage electronic equipment. As you unpack the
bridge/router, carefully check for signs of damage. If damage is suspected, contact the
shipper. Save the box and all packing material to protect the bridge/router should it ever
need to be moved or returned for service.
Check the packing slip that identifies the components and the LAN connector.
Select a Site
Place the bridge/router in a well ventilated area. The site should maintain normal office
temperature and humidity levels. Air vents located on the sides of the bridge/router must
have approximately one inch / 2.5 centimeters of clearance from any object.

Installation
2
Identify the Reset Switch
The reset switch is located on the main board inside the front cover of the bridge/router.
The switch is located between the 10BaseT connector and the Power LED. This switch will
perform a soft reset, which will reboot the system but leave all configuration settings as they
were assigned. This is the equivalent to the “soft reset” option offered in the Diagnostics
menu. To do a full reset, which clears all configuration settings and resets them to the
default settings, select the “full reset” option in the Diagnostics menu or see Appendix D
for instructions on performing a full hardware reset.
Figure 1-1 Location of the Reset Switch on P2600 Router
Identify the Connectors
Each P2600 is configured with a standard 10BaseT LAN connector on the front of the unit,
and 10Base5 and 10Base2 LAN connectors on the back panel. The console and power
connections are also on the back of the unit.
Refer to Appendix D: Servicing Information for information on installing and replacing
modules.
Figure 1 -2 Rear View of the P2600 Router
Figure 1-3 Rear View of the ISDN P2600 Router

Installation
3
Connect to the Console
Connection to the bridge/router operator’s console is made through the DB25 connector
labeled CONSOLE on the back of the bridge/router.
Connect the console port of the P2600 Router to a computer running an asynchronous
communication package or a standard asynchronous terminal. The bridge/router supports
autobaud rates at 1200, 2400, 9600, 19,200 or 38,400 bps. Both the bridge/router and the
bridged network are configured through the use of “hotkey” Menus.
Make the LAN Connections
Connection to the LAN is made through the connectors on the LAN interface module on
the back of the bridge/router (10Base5 and 10Base2) or the 10BaseT LAN connector on
the front of the unit.
Connect the P2600 Router to the LAN with the available LAN interface cable.
If the LAN connection is not 10BaseT (default configuration), then the type of LAN
connection must be configured via the console.
LAN Interface Type
Location: Main
ªConfiguration
ªLAN Set-up
ªLAN interface type
ª10BaseT, 10Base2 or 10Base5
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Installation
4
Make the Link Connection(s)
By default the links are configured as permanent DTE interfaces. The clocking for each link
will be provided by the DCE device connected to each link.
The V.35 link modules require interface converters that convert from a DB25 connector to
a male 34-pin (V.35) connector used for the V.35 interface. Be sure to secure the cable
connector(s) to the bridge/router and the communications equipment with the connector
screws to prevent accidental disconnection.
The T1/E1 and LX411 CSU-DSU modules connect with a standard RJ-45 (RJ-48C
specification for T1/E1, RJ-48S specification for CSU/DSU) connector
G.703 modules use a standard BNC connector with a 75 ohm cable.
The ISDN-ST interface module of the ISDN P2600 router provides a RJ-45 connector to
connect to the RJ-45 connector of the NT1 provided with your ISDN service.
The ISDN-U interface module of the ISDN P2600 router provides an integrated NT1 with
a RJ-45 connector to connect directly with your ISDN service.
After the P2600 is powered up and the bridge/router has established communications with
its partner across the WAN, the “Link” LED(s) will turn green.

Installation
5
Power Up the Bridge/Router
Once the LAN and Link connections are made and the console is connected to a terminal,
you are ready to power-up the P2600 router. Connect the AC power cord to the back of the
P2600 router and plug the cord into the AC wall outlet.
Observe the LEDs as the bridge/router powers up. The LEDs will go through the
following pattern as the power-up diagnostics are performed:
Link1 LED yellow checking EEPROM
Link2 LED yellow checking Flash Memory
Link3 LED yellow checking BBM
Link4 LED yellow checking DRAM
Link5 LED yellow initializing hardware (1st stage)
Link6 LED yellow initializing hardware (2nd stage)
Link1-14 LEDs all red, then offhardware check complete
LAN LED red initializing software
A message indicating the diagnostic step in progress will appear on the console
screen as each is performed.
After the power-up diagnostics are finished, the Power LED will go from red to green.
Enter at least one <RETURN> (up to three if necessary) in order for the bridge/router to
determine the baud rate of the terminal used for the console (i.e., autobaud). The following
information will now be seen on the console connected to the bridge/router :
Terminals supported:
ansi, avt, ibm3101, qvt109, qvt102, qvt119, tvi925,
tvi950, vt52, vt100, wyse-50, wyse-vp, teletype
Enter terminal type:
Select the terminal type being used if listed and enter its name (in lower case) at the prompt,
or choose the terminal type teletype if your terminal is not listed. This terminal type
operates in scroll mode and may be used successfully until a custom terminal definition is
created.

Installation
6
Managing the P2600 Using the Menus
This section describes the minimum configuration parameters required when setting up the
P2600. Each of the configuration scenarios requires setting of operational parameters on
the P2600. The built-in menu system of the P2600 is used to configure the unit.
The P2600 menu system operates on a “hotkey” principle; navigating around the menu
system is done by typing the number associated with the desired option; the P2600 acts on
the choice immediately (no need to hit the “enter” key).
The menu system consists of different menu levels each containing new configuration
options. Navigation back out of a nested menu is easily accomplished by pressing the tab
key. The tab key takes you to the previous menu level. If you wish to move from your
current menu location directly to the main menu simply press the equals “=” key.
When choosing menu options that will toggle between values, simply pressing the number
associated with that option will cause the options value to change. Each successive selection
of the option will cause the option’s value to change again.
Some menu options require input from the operator. When selecting an option that
requires a value, the menu system will display the range of values acceptable and a prompt
symbol “>”. Enter the new value at the prompt symbol and press enter. Should you make
an error in entering the new value, the <BACKSPACE> key (for most terminals) deletes the
most recently entered characters.
Conventions
Throughout this section, P2600 menu options are shown that are required for the various
configuration choices. The appropriate menu options are shown in each instance in the
following format:
Configuration Option Name
Location: Main
ªSub-Menu Name
ªSub-Menu Name
ªOption Name
The configuration option is shown as well as the options location within
the menu system. The ªcharacter indicates that a sub-menu level
must be chosen. The option name is finally shown in italics.
The keyboard graphic in the left margin indicates that this is information
that the user will have to enter for configuration.
The note icon is used to provide miscellaneous information on the configuration and
set up of the P2600.
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Installation
7
Configuration: The Configuration Note is used to indicate that there may be a difference in
Note configuration between the various operational modes of the P2600. This
may mean for example that the remote site set-up is configured differently
for an ISDN PPP router than for Frame Relay.
The information icon is used to indicate that more information is available on this
subject. The information is usually located within another document as specified.
The caution icon indicates that caution should be taken when performing this task.
Login to Bridge/Router and Enter the Required
Configuration
At the login screen type a 1 and the default password to enter the menu system of the P2600
router. The default password is “BRIDGE” (case sensitive) and should be changed if
security is desired.
With the options of the built-in menu system, the P2600 may be configured to operate
within your environment.
Refer to the Menus Reference Manual file for your operating software on the accompanying
CD-ROM for a complete description of all the Menu Options.
The menu system of the P2600 router may also be used to view system statistics.
Note: Bridge/Router database changes and statistics viewing may be done remotely by establishing Telnet
connections to a partner bridge/router across the WAN. This is accomplished by selecting the “Telnet”
option.
Location: Main
ªConfiguration
ªAccess Set up
ªTelnet Set up
ªTelnet
Specify the name or IP address of the router you wish to connect to for
configuration purposes or viewing of statistics.
Noting the Device name at the top left of each Menu may identify the
router being controlled.
If there is no data transmitted or received for a period of 5 minutes, the
Telnet session will be disconnected.
To disconnect from the router being controlled, enter Control-C ( ^C ).
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Installation
8
Telnet security considerations: Telnet may be disabled to prevent remote access
control of the router. If Telenet access is enabled, the device password should be
changed to some value other than the default to prevent unauthorized access.
Location: Main
ªConfiguration
ªAccess Set up
ªDevice Set up
ªPassword
If this router is being accessed by a telnet session, the operator at the console may override
the telnet session by logging in at the console. The telnet session will be locked out for 10
minutes or until the operator logs out. Telnet access may be disabled under the Telnet Set-
Up menu. Any attempts to connect via telnet while the router is under console control will
be registered in the Network Events log.
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Installation
9
Setting the T1/E1Parameters
(T1/E1 WAN only)
The parameters required for a T1 or E1 connection may be obtained from your service
provider. These may then be entered via the T1/E1 set-up menu to configure the router for
that service.
T1/E1 Selection:
Location: Main
ªConfiguration
ªWAN Set Up
ªLink Set Up ª
T1/E1 Set Up
ªLink mode
T1 or E1
Set the service mode to which this P2600 router will be connected.
Service parameters:
Location: Main
ªConfiguration
ªWAN Set Up
ªLink Set Up ª
T1/E1 Set Up
ªSpeed/Channel rate
56/64 kbps
ªT1/E1framing
framed/unframed/SF/ESF
ªLine encoding
AMI/INV_AMI/
B8ZS/HDB3
Select the service channel speed, framing format, and encoding as designated by the
service provider.
T1 service requires the specification of a Line Build Out factor. This parameter modifies the
transmitted signal to compensate for degradation due to line losses between the transmitter
and receiver. A number of different options are available to meet standards for T1 long haul
(direct connection to service providers central office facility), T1 short haul (connection
through a local PBX), AT&T TR64211 specification long haul and AT&T TR64211 short
haul. Your service provider will tell you which specification their service requires. Short haul
LBOs are listed as the length of the cable run (in feet) between the router and the local
exchange.
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Installation
10
E1 service does not require line build out selection.
Set Link Interface Type:
Location: Main
ªConfiguration
ªWAN Set Up
ªLink Set Up ª
T1/E1 Set Up
ªLBO
as specifed
T1 long-haul LBOs: L0db, L7.5db, L15db, L22.5db
Short haul LBOs: S0to110ft, S110to220ft, S220to330ft, S330to440ft,
S440to550ft, S550to660ft
AT&T standard TR64211long-haul connection: TL0db
AT&T standard TR64211 short-haul connection: TS0to110ft, TS110to220ft,
TS220to330ft, TS330to440ft, TS440to550ft, TS550to660ft
If fractional T1/E1 service is being provided, you will need to specify the
channels/timeslots to be used.
Set Link Interface Type:
Location: Main
ªConfiguration
ªWAN Set Up
ªLink Set Up ª
T1/E1 Set Up
ªSlot/Channel Set Up
ªStart
first channel
ªNumber
number of channels
Some E1 service providers reserve timeslot 16 for network management use. If your service
specifies that timeslot 16 is for their use, toggle this option to reserved
Set Link Interface Type:
Location: Main
ªConfiguration
ªWAN Set Up
ªLink Set Up ª
T1/E1 Set Up
ªSlot/Channel Set Up
ªE1 Timeslot 16
reserved
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Installation
11
Mandatory Configuration
The P2600 requires a minimum amount of mandatory configuration in order to operate.
The following table identifies the configuration parameters that must be defined for proper
operation under the operational states shown in the table.
Mandatory Configuration
Bridge IP Router IPX Router Lease Line
none IP Address none none
IP Routing
IP Forwarding
ISDN - U ISDN – S/T PPP ISDN Frame Relay
ISDN Switch
Type
ISDN Switch
Type
ISDN Switch
Type
none
Directory
Numbers
Directory
Numbers
B channel
assignment
Remote Site
Profile
PPP Lease Line
Frame Relay
disabled
Remote Site
Profile
The configuration options required for proper initial operation are described in Section 2:
Typical Applications and How to Configure Them. Each configuration requires a different
set of parameters to be entered.
Refer to Section 2 for details on configuring the P2600 in different operational states. Also
refer to the PPP Menus Reference Manual file for your operating software on the
accompanying CD-ROM for a complete description of all the Menu Options.
Other options may be changed depending upon specific installation configurations. Refer to
the menu tree in Appendix A for a reference of the menu structure and options.

Installation
12
Identify the Status LEDs
The three-colour Light Emitting Diodes (LEDs) on the front of the P2600 are depicted in
Figure 1-1. The meanings of these LEDs are found in the following chart.
Off Bridge/Router is powered down
Green Power supply output is good
Red Power supply output is bad
Yellow Output from one of the supplies is bad (redundant supplies)
POWER
Off Bridge/Router is powered down
Green LAN is connected and forwarding
Red Bridge/Router is NOT connected to the LAN or LAN Interface
Type is configured incorrectly
Yellow LAN NOT forwarding: i.e. Listening, Learning, or Blocking
Green (flashing) Bridge/Router is in TFTP mode
Yellow (flashing) Bridge/Router is in ZMODEM mode
LAN
Off LINK module is not present or module is Disabled
Green LINK is up
Red LINK is down (failed)
Yellow LINK is negotiating in ISDN. LINK is auto-learning LMI type in
Frame Relay. Not used in Leased Line mode
Green (flashing) LINK 1 - writing FLASH
LINK 1 - 14

13
2
Typical Applications & How to Configure Them
The P2600 is a flexible Ethernet Bridge/Router that may be configured to support leased
lines, ISDN circuits, PPP ISDN circuits, PPP leased lines, frame relay RAW 1490
permanent virtual circuits and frame relay encapsulated PPP permanent virtual circuit. This
section will describe how to set up the P2600 using each of its networking functions. Note
that depending on what WAN interface modules are installed, some of the configuration
examples may not apply; for example, if no ISDN BRI module is installed, the sections on
setting up an ISDN PPP P2600 would not apply.
The P2600 may be configured as a simple Ethernet bridge, an Ethernet IP router, an
Ethernet IPX router, or a combination of the three. When operating the P2600 as a
combination bridge/router simply configure each of the components separately.
Note: The configuration options described within this section are only for initial set up and
configuration purposes. For more complete information on all of the configuration
parameters available please refer to the P2600 PPP Menus Reference Manual file
on the accompanying CD-ROM.
Important: The P2600 uses FLASH memory to store the configuration information.
Configuration settings are stored to FLASH memory after there has been 30
seconds of idle time. Idle time is when there is no selection or modification of
the value in the built-in menu system. If you wish to save the configuration
immediately, enter “=” to jump to the main menu, then select “6” to save the
configuration.

Applications
14
Bridging and Routing
Should You Bridge or Route?
When connecting two Local Area Networks together, the first question to ask is “should I
bridge or route”? The decision to bridge or to route may be decided by how the existing
networks have been already set up.
Bridging should be used when the network consists of non-routable protocols or routable
protocols using the same network numbers. Some protocols can only be bridged; some of
the more well known are NetBEUI (used by Microsoft Windows), and LAT (used by Digital
Equipment Corp.).
If your IPX or IP network address is the same at both locations, bridging is simpler and
requires less configuration. If the locations are to be routed together, the network numbers
will have to be different in both cases; this could require extensive reconfiguration.
IPX routing should be used if the two locations are already set up with different IPX
network numbers. Routing IPX will minimize the number of SAP and RIP messages being
sent across the WAN.
IP routing should be used if the two locations are already set up with different IP network
numbers or if you wish to divide your one IP network number into two sub-networks.
In some cases both bridging and routing may be required. Routing may be required for IP
information and bridging may be required for NetBEUI.