Webster MultiPort/LT Assembly instructions

ðð
MultiPort/LT
ARA Server, Dial-Out Server
AppleTalk, IP
and DECnet Router
User Reference
Manual
WEBSTER COMPUTER CORPORATION
WEBSTER
MultiPort/LT
WEBSTER
LocalTalk/ARA
Ethernet CPU
Power
3210 AUI TP TW Traffic
ModemModem

WEBSTER
MultiPort/LT
U S E R R E F E R E N C E M A N U A L
Version 3.1
March 1997

WEBSTER COMPUTER CORPORATION
16040 Redwood Lodge Road
Los Gatos, CA 95030-9260
USA
Phone: [phone]
Sales and Support: (800) 5-WEBSTE(R) That is [phone]
FAX: [phone]
Email: [email protected], [email protected]
Website: http://www.webstercc.com/
Webster Computer Corporation believes the information in this manual is accurate at the
time of its publication; such information is subject to change without notice. Webster
Computer Corporation is not responsible for any inadvertent errors. Webster Computer
Corporation reserves the right to alter designs and/or specifications at any time in
accordance with its policy of continuous product development.
MultiPort/LT is a trademark of Webster Computer Corporation.
AppleTalk, LocalTalk, EtherTalk and Macintosh are trademarks of Apple Computer, Inc.
TSSgate is a trademark and TSSnet is a registered trademark of Thursby Software Systems,
Inc. Digital, DEC, DECnet, ALL-IN-1, VAX and VMS are trademarks of Digital Equipment
Corporation. Ethernet is a trademark of Xerox Corporation. UNIX is a registered
trademark of AT&T. WatchTower and TCP/Connect II are trademarks of InterCon
Systems Corporation. PortShareª is a trademark of Stalker Software.
K-Talk, K-AShare and K-Spool are trademarks of Xinet, Inc.
Printed in USA. Copyright © 1997 WEBSTER COMPUTER CORPORATION. All rights
reserved.

Manual Revision History
User Reference Manual - Document Number 2005802
Version Date Release Notes/Changes Incorporated
1.0 23-Jun-93 Initial version
2.0 22-Sep-94 ARA version
3.0 16-May-95 Dial-Out added
3.1 10-Mar-97 Minor Corrections/Address Change/
Adobe PDF Format

ABOUT THIS MANUAL .....
This manual provides useful reference material for the MultiPort/LT user and
network administrator.
Chapter 1 provides an introduction to Network Addressing.
Chapter 2 describes MultiPort/LT operation and the MultiPort/LT monitor
commands.
Chapter 3 describes the MultiPort/LT Gateway code commands.

MultiPort/LT User Reference Page v
Table of Contents
TABLE OF CONTENTS
CHAPTER 1 Introduction to Network Addressing
1.1. Interface Requirements............................................................2
1.2. Types of Addresses................................................................... 2
1.3. Multiple Interfaces..................................................................3
1.4. Ethernet Addresses ..................................................................4
1.4.1. Using Ethernet Addresses ................................................4
1.5. Internet Protocol (IP) Addresses............................................... 5
1.5.1. Using IP Addresses........................................................... 6
1.5.2. Subnetmask .....................................................................6
1.5.3. External and Internal Network Numbers ........................8
1.5.4. IP Address Classes ........................................................... 8
1.5.5. Using Subnetmask ......................................................... 10
1.5.6. Multiple Networks ........................................................ 10
1.5.7. ARP................................................................................ 11
1.6. AppleTalk Addresses.............................................................. 13
1.6.1. AppleTalk Network Numbers ........................................ 13
1.6.2. AppleTalk Node Numbers.............................................. 14
1.6.3. AppleTalk Zone Names - Phase 1 ................................... 15
1.6.4. AppleTalk Zone Names - Phase 2 ................................... 15
1.6.5. Seed Gateways.............................................................. 16
CHAPTER 2 Inside MultiPort/LT and Monitor Commands
2.1. MultiPort/LT Operation........................................................ 18
2.1.1 Console Port.................................................................. 18
2.1.1.1. Port Requirements ................................................. 18
2.1.2 Minidin-8 Connectors.................................................... 18
2.1.2.1. Modem Cable ........................................................ 19
2.1.3 Monitor and Gateway Code Functions ......................... 20
2.1.4 MultiPort/LT Program Control ..................................... 21
2.1.5 MultiPort/LT Power-On Sequence ................................ 21
2.1.6 MultiPort/LT IPTalk Operation..................................... 22
2.1.6.1. Definition of IPTalk............................................... 22
2.1.6.2. Uses for IPTalk....................................................... 23
2.1.7 MultiPort/LT MacIP Operation..................................... 24
2.1.7.1. NCSA Telnet Operation ........................................ 24
2.1.8 MultiPort/LT and RTMP ............................................... 25
2.1.9 MultiPort/LT AppleTalk Interfaces................................ 26

MultiPort/LT User Reference Page vi
Table of Contents
2.2. MultiPort/LT Monitor........................................................... 28
2.2.1 MultiPort/LT Configuration Data Storage................... 28
2.2.1.1. Master and Working Configuration ...................... 29
2.2.1.2. Using Data ............................................................ 30
2.2.1.3. Saving Data .......................................................... 30
2.2.1.4. Factory Configuration........................................... 31
2.2.1.5. Gateway Requirements ......................................... 32
2.2.2 Making A Monitor Connection...................................... 33
2.2.2.1. Using a Macintosh................................................. 33
2.2.2.2. Using a Terminal ................................................... 35
2.2.2.3. Using a Telnet Session ........................................... 35
2.2.3 MultiPort/LT Monitor Commands................................ 36
2.2.3.1. Command Name-levels......................................... 36
2.2.3.2. Command Execution ............................................. 36
2.2.3.3. Name-level Prompts.............................................. 37
2.2.3.4. Abbreviations......................................................... 37
2.2.3.5. Answering Questions............................................. 38
2.2.3.6. Use Of Brackets ..................................................... 38
2.2.3.7. Entering Hexadecimal Numbers............................ 38
2.2.3.8. Asking For Help ..................................................... 39
2.2.3.9. Editing ................................................................... 39
2.2.3.10. Exiting From A Name-level ................................... 39
2.2.4 Monitor Sign-on............................................................ 39
2.2.5 Monitor Main Menu ..................................................... 40
2.2.5.1. Boot Command...................................................... 40
2.2.5.1.1. Booting from a Telnet Session......................... 44
2.2.5.2. Configure Command and Menu............................ 44
2.2.5.2.1. Configure Hostname Command..................... 45
2.2.5.2.2. Configure Bootname Command ..................... 45
2.2.5.2.3. Configure Bootzone Command ...................... 45
2.2.5.2.4. Configure Bootpath Command....................... 46
2.2.5.2.5. Configure Bootuser Command....................... 47
2.2.5.2.6. Configure Bootpass Command....................... 47
2.2.5.2.7. Configure Options Command / Menu ............ 48
2.2.5.2.8. Configure Internet Command......................... 50
2.2.5.2.9. Configure Daughterboard Command............. 50
2.2.5.2.10. Configure Display Command ......................... 53
2.2.5.2.11. Configure Save Command ............................. 55
2.2.5.2.12. Configure Use Command ............................... 55
2.2.5.2.13. Configure Restore Command......................... 55
2.2.5.2.14. Configure Fetch Command............................. 55
2.2.5.3. FTP Command....................................................... 55
2.2.5.4. Initialize Command............................................... 56
2.2.5.5. Load Command ..................................................... 56

MultiPort/LT User Reference Page vii
Table of Contents
2.2.5.6. Flash Commands................................................... 56
2.2.5.7. Run Command....................................................... 58
2.2.5.8. Server Command .................................................. 58
2.2.5.9. Test Command and Menu ..................................... 58
2.2.5.10. Version Command ................................................. 59
2.3. Remote MultiPort Configuration Across The IP Network ..... 59
CHAPTER 3 MultiPort/LT Gateway Code Commands
3.1. Introduction........................................................................... 62
3.2. MultiPort/LT Gateway Code Startup ................................... 62
3.3. MultiPort/LT Gateway Code Commands............................. 62
3.3.1. Control Commands....................................................... 63
3.3.1.1. q - Quit.................................................................. 63
3.3.1.2. Q - Reboot ............................................................. 63
3.3.1.3. T - Telnet ............................................................... 63
3.3.1.4. ? - Help command .................................................. 64
3.3.1.5. @ - Clear Statistics ................................................ 64
3.3.1.6. K - Print Control .................................................... 64
3.3.1.7. j - Operator Jotting ................................................ 64
3.3.2. Informational Commands ............................................. 65
3.3.2.1. u - UpTime............................................................. 65
3.3.2.2. v - Version.............................................................. 65
3.3.2.3. e - Flash EPROM Configuration ........................... 65
3.3.3. Statistics Commands ..................................................... 65
3.3.3.1. B Buffer Statistics .................................................. 65
3.3.3.2. a, b, c, d - Select Channel to Examine..................... 66
3.3.3.3. s - Channel Statistics ............................................. 67
3.3.3.3.1. LocalTalk Channel.......................................... 67
3.3.3.3.2. Serial Channel................................................ 68
3.3.3.4. g - Gateway Statistics............................................ 70
3.3.3.5. i - ICMP Statistics.................................................. 71
3.3.3.6. l - LANCE Statistics ............................................... 72
3.3.3.7. M - NBP Statistics ................................................. 73
3.3.3.8. m - MultiPort/LT-addressed Packets ..................... 73
3.3.3.9. p - ARP Statistics.................................................... 74
3.3.3.10. t - RIP Statistics ..................................................... 75
3.3.3.11. x - RTMP Statistics................................................ 75
3.3.3.12. z - ZIP Statistics ..................................................... 76
3.3.3.13. %-Routing Statistics.............................................. 76
3.3.3.14. f - Filter Statistics .................................................. 77
3.3.4. Internal Table Printing Commands................................ 77
3.3.4.1. 0,1,2,3,4,5,6,7 - Interface Information .................... 77
3.3.4.2. A - ARP Table ........................................................ 79

MultiPort/LT User Reference Page viii
Table of Contents
3.3.4.3. I - Interfaces........................................................... 80
3.3.4.4. N - NBP registry .................................................... 81
3.3.4.5. n - Assigned IP Addresses ....................................... 81
3.3.4.6. R - RTMP Routing Table........................................ 82
3.3.4.7. r - IP Routing Table ............................................... 83
3.3.4.8. U - Routing Table and Associated Zones ................ 84
3.3.4.9. W - Watch Log........................................................ 86
3.3.4.10. Z - Zone Table and Associated Routes .................... 87
3.3.4.11. ^Z - Zone Hashing Table........................................ 88
3.3.4.12. * - IP Routing Cache ............................................. 89
3.3.4.13. w- who (users and Zone Groups)........................... 89
3.3.4.14. F - Filter Settings Table ......................................... 90
3.3.4.15. S - SNMP Table..................................................... 91
3.3.5. DECnet Related Commands.......................................... 92
3.3.5.1. DN - Node list ....................................................... 92
3.3.5.2. DR - Routers.......................................................... 92
3.3.5.3. DC - Circuits ......................................................... 92
3.3.5.4. DG - Gateway....................................................... 93
3.3.6. Debugging Commands .................................................. 93
3.3.6.1. Control P - Panic ................................................... 93
3.3.6.2. $ - Abort Save Registers......................................... 93
3.3.6.3. # - Print Debug Flags............................................. 94
3.3.6.4. =nXXXX? - Set Debug Flags.................................. 95
3.4. MultiPort/LT Gateway Code Panics ..................................... 95
MultiPort/LT User Reference Manual Index........................................... 97
LIST OF TABLES
Table Title Page
Table 2-1. Console Port Pin Assignments.............................. 18
Table 2-2. Minidin-8 Pin Assignments - Modem .................. 19
Table 2-3. Minidin-8 Pin Assignments - LocalTalk ............... 19
Table 2-4. Hardware Handshake Modem Cable.................. 19
Table 2-5. Monitor and Gateway Code Functions ............... 20

MultiPort/LT User Reference Page ix
Table of Contents
LIST OF FIGURES
Figure Title Page
Figure 1-1. Protocol Addresses.................................................2
Figure 1-2. Types of Addresses................................................. 3
Figure 1-3. Multiple Interfaces ................................................3
Figure 1-4. Ethernet Addresses ................................................ 4
Figure 1-5. Using Ethernet Addresses......................................5
Figure 1-6. IP Addresses........................................................... 5
Figure 1-7. Using IP Addresses.................................................6
Figure 1-8. IP Network Numbers............................................. 8
Figure 1-9. Multiple Networks .............................................. 11
Figure 1-10. Address Resolution Protocol ................................ 12
Figure 1-11. AppleTalk Network Numbers .............................. 13
Figure 1-12. AppleTalk Node Numbers.................................... 14
Figure 2-1. Monitor and Gateway Code Program Control ... 21
Figure 2-2. IPTalk Operation................................................. 23
Figure 2-3. AppleTalk Software Interfaces............................ 26
Figure 2-4. AppleTalk Interface 4........................................... 26
Figure 2-5. AppleTalk Interface 5........................................... 27
Figure 2-6. AppleTalk Interface 6........................................... 27
Figure 2-7. ARA Interface ...................................................... 28
Figure 2-8. Master Configuration......................................... 29
Figure 2-9. Working Configuration ....................................... 29
Figure 2-10. Using Data.......................................................... 30
Figure 2-11. Saving Data........................................................ 31
Figure 2-12. Factory Configuration......................................... 32
Figure 2-13. Configuration Storage Areas .............................. 32
Figure 2-14. MultiPort/LT - Macintosh Connection................ 33
Figure 2-15. MultiPort/LT Boot Zone...................................... 46

MultiPort/LT User Reference Page x
Table of Contents

MultiPort/LT User Reference Page 1
Introduction to Network Addressing
CHAPTER 1 Introduction to Network Addressing
This Chapter provides an introduction to network addressing.
AppleTalk, Ethernet and IP addresses are discussed, as well as the relevant
network protocols and interfaces.

MultiPort/LT User Reference Page 2
Chapter 1
1.1. Interface Requirements
For successful communication, all devices and networks must be represented by
unique addresses. These addresses enable datagrams to arrive at their correct
destination.
A device can have more than one address. For each network interface on a
device, so there exists an address for each protocol the interface uses.
Figure 1-1 shows a device with two unique addresses, one for each protocol the
device uses, even though only one network cable physically connects to it
Protocol
unique
address
Protocol
unique
address
Network
interface
Network
cable
Device
Protocol
Protocol
Figure 1-1. Protocol Addresses

MultiPort/LT User Reference Page 3
Introduction to Network Addressing
1.2. Types of Addresses
Devices connected to an Ethernet, which handle Ethernet, IP and AppleTalk
protocols, require three types of addresses:
❏Ethernet addresses
❏Internet Protocol (IP) addresses
❏AppleTalk addresses
Every device connected to an Ethernet has an Ethernet interface and a
corresponding Ethernet address used by the Ethernet protocol. A device which
also uses IP and AppleTalk protocols, such as the MultiPort/LT, also has
corresponding IP and AppleTalk addresses. Refer to Figure 1-2.
Ethernet
address
IP
address
AppleTalk
address
Ethernet
protocol
AppleTalk
protocol
Internet
protocol
Device
Figure 1-2. Types of Addresses
1.3. Multiple Interfaces
Devices with more than one network interface require additional addresses.

MultiPort/LT User Reference Page 4
Chapter 1
Figure 1-3 shows a device with a LocalTalk interface and an Ethernet interface.
Each interface has addresses corresponding to the protocols used.
AppleTalk
address
IP address
LocalTalk
interface
LocalTalk Ethernet address
IP address
AppleTalk
address
Ethernet
interface
Device
Ethernet
Figure 1-3. Multiple Interfaces
1.4. Ethernet Addresses
All device interfaces connected to an Ethernet, including the MultiPort/LT's, are
required to have a unique 48 bit Ethernet address. The address is conventionally
written as six pairs of hexadecimal digits and divided into two distinct parts.
00.00.18. 00.00.A2
Manufacturer's
number
Device
number
Figure 1-4. Ethernet Addresses
The manufacturer's number is assigned by a central Ethernet authority. A
manufacturer could be assigned more than one manufacturer's number. All
MultiPort/LTs are given the manufacturer's number of 00.00.18.

MultiPort/LT User Reference Page 5
Introduction to Network Addressing
The device number is unique for each Ethernet interface the manufacturer
produces. Each MultiPort/LT, with its one Ethernet interface, has one unique
device number and therefore one unique Ethernet address.
For the MultiPort/LT, the Ethernet address is configured in memory at the
manufacturing plant and recorded on a label attached to the rear panel of the
case. The Ethernet address can also be checked using the command VERSION.
Refer to Section 2.2.4.12. in this manual. There should be no requirement to
change the address on-site.
1.4.1. Using Ethernet Addresses
To ensure correct transfer, all datagrams sent across an Ethernet include source
and destination Ethernet addresses. Refer to Figure 1-5.
Please note that Ethernet addresses are only valid for the devices directly
connected to a logical segment of Ethernet (a logical segment includes Ethernet
segments interconnected by repeaters and bridges).
Ethernet
00.00.18.00.00.A2
MultiPort Gateway 00.00.26.00.00.72
Second
manufacturer's device
Source =
00.00.18.00.00.A2
Destination =
00.00.26.00.00.72
Datagram
Figure 1-5. Using Ethernet Addresses
1.5. Internet Protocol (IP) Addresses
Each device interface which uses Internet Protocol is required to have a unique
32 bit IP address, conventionally written as four decimal numbers separated by
periods. Each decimal number represents 8 bits.

MultiPort/LT User Reference Page 6
Chapter 1
❏Example
192.160.22.16
Each IP address is divided into two distinct parts, a network number and a host
number.
Figure 1-6. IP Addresses
A network is assigned a unique network number. The device interface
connecting to that network is assigned a unique host number.
1.5.1. Using IP Addresses
All datagrams sent to and from a MultiPort/LT on the Ethernet include source
and destination IP addresses to ensure correct routing across multiple
networks. Refer to Figure 1-7.
Figure 1-7. Using IP Addresses

MultiPort/LT User Reference Page 7
Introduction to Network Addressing
Variation in network and host number lengths is permitted.
In Figure 1-7 note how Ethernet #1's network number of 192.160.22 is three
decimal numbers long (24 bits), yet Ethernet #2's network number of 148.6 is
only two decimal numbers long (16 bits). Similarly, the host numbers vary in
length.
1.5.2. Subnetmask
To distinguish between network and host numbers, an IP address is used with a
32 bit subnetmask number, conventionally written as four decimal numbers
separated by periods.
❏Example
255.255.255.0
Bits set in the mask indicate the address network number; bits not set indicate
the address host number.
❏Example 1
ADDRESS 192.160.22.16
SUBNETMASK 255.255.255.0
For interpretation, both numbers are first changed into hexadecimal:
ADDRESS 84.A0.16.10
SUBNETMASK FF.FF.FF.00
Then both numbers are changed into binary:
ADDRESS
SUBNETMASK
1000 0100 1010 0000 0001 0110
1111 1111 1111 1111 1111 1111
0001 0000
0000 0000
All bits not set =
host number
All bits set =
network number

MultiPort/LT User Reference Page 8
Chapter 1
In example 1 the subnetmask decodes a host number of 0001 0000
(decimal 16).
❏Example 2
ADDRESS 129.15.115.71
SUBNETMASK 255.255.255.224
ADDRESS 81.0F.73.47
SUBNETMASK FF.FF.FF.E0
ADDRESS 1000 0001 0000 1111 0111 0011 0100 0111
SUBNETMASK 1111 1111 1111 1111 1111 1111 1110 0000
In example 2 the subnetmask decodes a host number of 0 0111
(decimal 7). Note how the host number is decoded as only 5 bits long.
Host numbers and their corresponding subnetmask bits do not have
to be multiples of 8 bits.
1.5.3. External and Internal Network Numbers
❏Terminology
This manual uses the terms 'external network number' and 'internal
network number' in preference to the alternative terms 'network
number' and 'subnet number' respectively.

MultiPort/LT User Reference Page 9
Introduction to Network Addressing
The network number itself is subdivided into two distinct parts, an external
network number and an internal network number.
132.160. 22
External
network
number
Internal
network
number
Figure 1-8. IP Network Numbers
External network numbers are assigned by the central network authority
Network Information Center (NIC) at [email protected].
Internal network numbers are assigned by a local network authority, possibly a
customer's own organization.
Host numbers are assigned by the customer's local network administrator.
1.5.4. IP Address Classes
External network numbers, as assigned by ARPANET, belong to one of five
classes. These classes give IP addresses a flexible numbering system, able to
accommodate maximum networks with minimum hosts, or vice-versa.