Page 1 Cayman 3220-H User’s Guide Release 5.6.2 November 2000...
Page 2 Copyrights Trademarks Copyright © 1999-2000 Cayman Systems All rights reserved Printed in the United States of America Portions of this software copyright 1988, 1991 by Carnegie Mellon University. All rights reserved. Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice and this permission notice appear in supporting documentation, and that the name of Carnegie Mellon University...
Page 3: Table Of Contents
What’s New in Release 5.6.2......1-1 Cayman 3220-H Features......1-1 Cayman 3220-H Front Panel .
Page 4 Entering Commands in CONFIG Mode ....4-17 Displaying Current Router Settings....4-18 Stepping Through Cayman 3220-H Configuration .
Page 5 A Technical Specifications Cayman 3220-H User’s Guide December 2000 PPP Settings ........4-37 Command Line Interface Preference Settings .
Page 6 About DHCP........C-4 Cayman 3220-H as DHCP Server .....C-4 Cayman 3220-H as DHCP Client .
Page 7: About This Manual
Cayman 3220-H User’s Guide December 2000 Preface This manual describes how to connect your Cayman 3220-H to your local area network (LAN) and wide area network (WAN) and how to conﬁgure it to function as an Ethernet hub/router. You should read this manual completely before you connect your Cayman 3220-H to your Ethernet networks.
Page 8: Documentation Conventions
Chapter 5, “Monitoring Your Cayman 3220-H,” describes how to monitor the performance of your Cayman 3220-H. Chapter 6, “Updating Your System Software,” describes how to install a new version of the Cayman 3220-H operating software in your router. Appendix A, “Technical Speciﬁcations,” details hardware speciﬁcations and certiﬁcations for the Cayman 3220-H.
Page 9 Cayman 3220-H User’s Guide December 2000 Alternative values for an argument are presented in curly ({ }) brackets, with values separated with vertical bars (|). Variables for which you must supply your own values are presented in italic terminal type face...
Page 10 Preface Cayman 3220-H User’s Guide December 2000...
Page 11: What's New In Release 5.6.2
Support for Alcatel multimode Asymmetric Digital Subscriber Line (ADSL) , which allows your Cayman 3220-H to detect and establish a connection over all industry-standard forms of asynchronous DSL (ANSI T1.413 Issue2, G.dmt, and G.lite) automatically.
Page 12 SWIFT-IP™ means that installing the Cayman 3220-H consists of connecting the device to your networks and entering a few basic settings. You can install and conﬁgure the Cayman 3220-H in less than 10 minutes. Web-based browser conﬁguration makes conﬁguration and management easy from anywhere on your network.
Page 13 Support for negotiation of IPCP subnet allocation from a Remote Access Server. Enhanced security, diagnostics, and error reporting for PPP and PPPoE connections. Support for a NAT default server lets your Cayman 3220-H direct NAT trafﬁc to a speciﬁed host on your network. About Your Cayman 3220-H...
Page 14: Cayman 3220-H Front Panel
Cayman 3220-H Front Panel Cayman 3220-H Back Panel About Your Cayman 3220-H The front panel of your Cayman 3220-H (Figure 1-1) includes the following LEDs and ports. ETHERNET POWER Figure 1-1 Cayman 3220-H Front Panel The power LED remains steadily on when you connect your Cayman 3220-H to a power supply.
Page 15 Cayman 3220-H User’s Guide December 2000 The DSL port lets you connect your Cayman 3220-H to one or more remote networks over a DSL connection. The maintenance console port lets you connect the Cayman 3220-H to a terminal or personal computer running a terminal emulation application to conﬁgure its operating settings with...
Page 16 About Your Cayman 3220-H Cayman 3220-H User’s Guide December 2000...
Page 17: Unpacking Your Cayman 3220-H
Connecting Your Cayman 3220-H Disconnecting Your Cayman 3220-H The ﬁrst thing you should do when you receive the Cayman 3220-H package is conﬁrm that you have everything you should. Remove all the materials from the shipping carton and verify that you have the...
Page 18: Connecting Your Cayman 3220-H
3220-H let you connect the personal computers, printers, and other network devices in your workgroup. The DSL port on the rear panel of the Cayman 3220-H is used to connect the device to a DSL jack. Position the Cayman 3220-H in a location where air can circulate freely around it.
Page 19: Step 2: Connect Your Local Devices
Insert one end of a twisted-pair cable in one of the ports labeled LAN 10BT on the Cayman 3220-H front panel until you feel it lock (Figure 2-1). Connect the other end of the cable to the Ethernet port on a personal computer or other networked device.
Page 20: Step 3: Connect Your Wide Area Network
Insert one end of the green DSL data cable in the port labeled DSL on the Cayman 3220-H back panel until you feel it lock (Figure 2-2). Connect the other end of the cable to your DSL wall jack. If the DSL status LED does not come on after you power your Cayman 3220-H, replace the green DSL data cable with the blue one.
Page 21: Disconnecting Your Cayman 3220-H
Disconnect the Ethernet cables from the LAN ports on the Cayman 3220-H front panel. 4. Disconnect the cable from the Cayman 3220-H DSL port. Disconnect the cable from the DSL port on the Cayman 3220-H back panel. Setting Up Your Cayman 3220-H...
Page 22 Setting Up Your Cayman 3220-H Cayman 3220-H User’s Guide December 2000...
Page 23: Gathering Configuration Information
Cayman 3220-H User’s Guide December 2000 Conﬁguring Your Cayman 3220-H Gathering Conﬁguration Information Conﬁguring Your Computer Opening a Web Connection Entering Basic Settings Entering Ethernet (LAN) Settings Entering ATM Settings Conﬁguring Password Settings Conﬁguring Pinhole Settings Conﬁguring Bridge Settings Conﬁguring SNMP Settings...
Page 24: Quickstart Information
QuickStart Information Conﬁguring Your Cayman 3220-H Before you conﬁgure your Cayman 3220-H, you need to gather information about your networks. Most users will only need to complete the QuickStart section. For many users, the default conﬁguration of the product will provide all the necessary services.
Page 25: Ethernet (Lan) Port Information (Optional)
Address If you want to customize the settings for the Ethernet interface on your Cayman 3220-H, print the following table and use it to enter information in the Cayman 3220-H Ethernet window. Some ﬁelds listed in the table only appear after you click the Expert Mode button on the Cayman 3220-H Home window.
Page 26 . Default is 192.168.1.254 Lease Time The time period, in DD:HH:MM:SS format, for (expert mode) which a configuration issued by the Cayman 3220-H DHCP server is valid. Applicable when DHCP Mode is set to 00:01:00:00 Default is hour). Server The IP address the remote...
Page 27: Atm Port Information (Optional)
December 2000 If you want to customize the settings for the ATM port on your Cayman 3220-H, print a copy of the following table for each virtual circuit you want to set up and use it to enter information in the Cayman 3220-H ATM Conﬁguration window.
Page 28 Virtual circuit identifier. Enter a number in the range 0-65535. Default is 35. Local The IP address of the Cayman 3220-H on the virtual circuit. Address Enter 0.0.0.0 if you want the Cayman 3220-H to negotiate its IP address. Peer Address The IP address of the PPP peer on the virtual circuit.
Page 29: Configuring Your Computer
Cayman 3220-H. 1. Conﬁgure your computer to use an IP address on the same TCP/IP network as the Cayman 3220-H. If you are using Windows 95/Windows 98/Windows NT: Open the Network Control Panel and select the TCP/IP service for the Ethernet card in your computer (for example, TCP/IP ->3Com EtherLink III).
Page 30 Open the TCP/IP Control Panel. b. Choose Connect via Ethernet. c. Choose Configure Using DHCP Server and enter the IP address of the Cayman 3220-H (192.168.1.254) in the Name Server Address text box. d. Click OK. If you are using a Macintosh running MacTCP: Open the MacTCP Control Panel and select the Ethernet interface icon.
Page 31: Opening A Web Connection
Internet Explorer, to open a connection to your Cayman 3220-H. To open a connection to your Cayman 3220-H: 1. Run your Web browser. 2. Enter the name or IP address of your Cayman 3220-H in the browser's Open Location window and press Enter. For example, you would enter Cayman 3220-H is using its default IP address.
Page 32 3-10 Figure 3-1 Cayman 3220-H Home Window (Novice Mode) 4. Use the buttons on the Cayman 3220-H Home Page to issue a command or open a window. The Quickstart button opens the QuickStart window, which lets you enter basic settings for your Cayman 3220-H.
Page 33: Entering Basic Settings
To display the QuickStart window, click the QuickStart button on the Cayman 3220-H Home Page. If you are using the default settings (PPPoE) for your WAN (DSL) port, the default Cayman-DSL PPP Quickstart window (Figure 3-3) opens.
Page 34 PPP link is being established in the Username ﬁeld. This is the username the Cayman 3220-H sends in a PAP or CHAP response packet. The information you enter must match the CHAP username conﬁgured in the remote PPP peer's authentication database.
Page 35: Rfc-1483 Quickstart Window
1. Enter the name of your Cayman 3220-H in the System Name ﬁeld. Each Cayman 3220-H is assigned a name as part of its factory initialization. The default name for a Cayman 3220-H consists of the word “Cayman-DSL” and the serial number of the device. A device name can be 1-32 characters long and cannot include spaces or special characters.
Page 36 4. Enter the IP address of the default gateway for your network in the Default Gateway ﬁeld. The default gateway is the host to which the Cayman 3220-H will send packets if it does not know how to reach a destination host.
Page 37: Entering Ethernet (Lan) Settings
If your network falls into this category, do not change the LAN Ethernet settings. To display the Ethernet Port (LAN) Conﬁguration window (Figure 3-5), click the Ethernet button on the Cayman 3220-H Home Page. Figure 3-5 Ethernet Port (LAN) Conﬁguration Window (expert mode) Conﬁguring Your Cayman 3220-H...
Page 38 Conﬁguration (LAN) window. If you did not turn on Expert Mode, you can skip to Step 8, below. If you use the Cayman 3220-H as a DHCP server, you should assign IP addresses outside the DHCP address range to devices requiring static IP addresses.
Page 39: Entering Atm Settings
8. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 9. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with its new conﬁguration. The ATM Conﬁguration window lets you conﬁgure as many as eight virtual circuits on the Cayman 3220-H ATM connection.
Page 40 You can choose one of the following options for each virtual circuit you want the Cayman 3220-H to maintain. The selection made for one virtual circuit does not affect other virtual circuits.
Page 41: Ppp Over Ethernet (Llc-Snap Encapsulation)
Step 1. The following sections describe the settings applicable for each type of encapsulation. 3. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with its new conﬁguration. If you choose pppoe-llc on the ATM Conﬁguration window (Figure...
Page 42 Conﬁguring Your Cayman 3220-H 3-20 Figure 3-7 PPP over Ethernet (LLC-SNAP Encapsulation) Window 1. Enter the number of the virtual path identiﬁer in the VPI ﬁeld. The VPI is a number in the range 0-255. Consult your ATM transport administrator for what number you should enter in this ﬁeld.
Page 43 If you choose a connection type of Instant On, the Cayman 3220-H shuts down the PPP link if it is not being used for the number of seconds speciﬁed in the Idle Timeout ﬁeld. If you choose a connection type of Always On, the Cayman 3220-H never shuts down the PPP link.
Page 44 12. Use the RIP-Send list to specify whether you want the Cayman 3220-H to send Routing Information Protocol (RIP) messages to other routers. RIP lets your Cayman 3220-H inform other routers of routes available through its interfaces. Options are: Off – Do not send RIP messages to other routers.
Page 45: Ppp Over Ethernet (Vc-Muxed)
17. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 18. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose pppoe-vcmux on the ATM Conﬁguration window...
Page 46 Conﬁguring Your Cayman 3220-H 3-24 Figure 3-8 PPP over Ethernet (VC-Muxed) Window 1. Enter the number of the virtual path identiﬁer in the VPI ﬁeld. The VPI is a number in the range 0-255. Consult your ATM transport administrator for what number you should enter in this ﬁeld.
Page 47 If you choose a connection type of Instant On, the Cayman 3220-H shuts down the PPP link if it is not being used for the number of seconds speciﬁed in the Idle Timeout ﬁeld. If you choose a connection type of Always On, the Cayman 3220-H never shuts down the PPP link.
Page 48 12. Use the RIP-Send list to specify whether you want the Cayman 3220-H to send Routing Information Protocol (RIP) messages to other routers. RIP lets your Cayman 3220-H inform other routers of routes available through its interfaces. Options are: Off – Do not send RIP messages to other routers.
Page 49: Ethernet Over Rfc 1483 (Llc-Snap Encapsulation)
17. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 18. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose ether-llc on the ATM Conﬁguration window (Figure 3-6...
Page 50 Conﬁguring Your Cayman 3220-H 3-28 Figure 3-9 Ethernet over RFC1483 (VC-Muxed) Window 1. Enter the number of the virtual path identiﬁer in the VPI ﬁeld. The VPI is a number in the range 0-255. Consult your ATM transport administrator for what number you should enter in this ﬁeld.
Page 51 4. Use the NAT radio buttons to enable or disable network address translation for this virtual circuit. 5. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the IP Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit.
Page 52 9. Use the RIP-Receive list to specify whether you want the Cayman 3220-H to accept Routing Information Protocol (RIP) messages from other routers. RIP lets your Cayman 3220-H learn about routes available through other routers. Options are: Off – Do not accept RIP messages from other routers.
Page 53: Ethernet Over Rfc 1483 (Vc-Muxed)
13. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 14. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose ether-vcmux on the ATM Conﬁguration window...
Page 54 4. Use the NAT radio buttons to enable or disable network address translation for this virtual circuit. 5. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the IP Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit.
Page 55 8. Use the RIP-Send list to specify whether you want the Cayman 3220-H to send Routing Information Protocol (RIP) messages to other routers. RIP lets your Cayman 3220-H inform other routers of routes available through its interfaces. Options are: Off – Do not send RIP messages to other routers.
Page 56: Ppp Over Atm (Llc-Snap Encapsulation)
13. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 14. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose ppp-llc on the ATM Conﬁguration window (Figure 3-6...
Page 57 Cayman 3220-H User’s Guide December 2000 Figure 3-11 PPP over ATM (LLC-SNAP Encapsulation) Window 1. Enter the number of the virtual path identiﬁer in the VPI ﬁeld. The VPI is a number in the range 0-255. Consult your ATM transport administrator for what number you should enter in this ﬁeld.
Page 58 If you choose a connection type of Instant On, the Cayman 3220-H shuts down the PPP link if it is not being used for the number of seconds speciﬁed in the Idle Timeout ﬁeld. If you choose a connection type of Always On, the Cayman 3220-H never shuts down the PPP link.
Page 59 Cayman 3220-H User’s Guide December 2000 9. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the Local Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit. Enter 3220-H to negotiate its IP address with the remote peer.
Page 60 13. Use the RIP-Receive list to specify whether you want the Cayman 3220-H to accept Routing Information Protocol (RIP) messages from other routers. RIP lets your Cayman 3220-H learn about routes available through other routers. Options are: Off – Do not accept RIP messages from other routers.
Page 61: Ppp Over Atm (Vc-Muxed)
PPP over ATM (VC-Muxed) Cayman 3220-H User’s Guide December 2000 If you choose ppp-vcmux on the ATM Conﬁguration window (Figure 3-6 on page 3-18) for a virtual circuit and click the Configure button, the PPP over ATM (VC-Muxed) window (Figure 3-12) lets you conﬁgure how the virtual circuit uses PPP framing and VC-based...
Page 62 If you choose a connection type of Instant On, the Cayman 3220-H shuts down the PPP link if it is not being used for the number of seconds speciﬁed in the Idle Timeout ﬁeld. If you choose a connection type of Always On, the Cayman 3220-H never shuts down the PPP link.
Page 63 9. Use the NAT radio buttons to enable or disable network address translation for this virtual circuit. 10. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the Local Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit.
Page 64 14. Use the RIP-Receive list to specify whether you want the Cayman 3220-H to accept Routing Information Protocol (RIP) messages from other routers. RIP lets your Cayman 3220-H learn about routes available through other routers. Options are: Off – Do not accept RIP messages from other routers.
Page 65: Ip Over Rfc 1483 (Llc-Snap Encapsulation)
18. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 19. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose ip-llc on the ATM Conﬁguration window (Figure 3-6 on...
Page 66 4. Use the NAT radio buttons to enable or disable network address translation for this virtual circuit. 5. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the IP Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit.
Page 67 8. Use the RIP-Send list to specify whether you want the Cayman 3220-H to send Routing Information Protocol (RIP) messages to other routers. RIP lets your Cayman 3220-H inform other routers of routes available through its interfaces. Options are: Off – Do not send RIP messages to other routers.
Page 68: Ip Over Rfc 1483 (Vc-Muxed)
13. Click the Save button to store your modiﬁed conﬁguration in the Cayman 3220-H memory. 14. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with the new conﬁguration. If you choose ip-vcmux on the ATM Conﬁguration window (Figure...
Page 69 Cayman 3220-H User’s Guide December 2000 Figure 3-14 IP over RFC1483 (VC-Muxed) Window 1. Enter the number of the virtual path identiﬁer in the VPI ﬁeld. The VPI is a number in the range 0-255. Consult your ATM transport administrator for what number you should enter in this ﬁeld.
Page 70 4. Use the NAT radio buttons to enable or disable network address translation for this virtual circuit. 5. Enter the IP address the Cayman 3220-H will use on this virtual circuit in the IP Address ﬁeld. The IP address you enter must not be in use by other devices on this virtual circuit.
Page 71 9. Use the RIP-Receive list to specify whether you want the Cayman 3220-H to accept Routing Information Protocol (RIP) messages from other routers. RIP lets your Cayman 3220-H learn about routes available through other routers. Options are: Off – Do not accept RIP messages from other routers.
Page 72: Configuring Password Settings
Cayman 3220-H. You must assign the Cayman 3220-H an Admin password before you can assign it a User password. You will see a warning on the Cayman 3220-H conﬁguration screens until you set an administrative password. To prevent anyone from observing the password you enter, characters in the old and new passwords are not displayed as you type them.
Page 73 You can choose Admin or User. You must assign the Cayman 3220-H an Admin (administrator) password before you can assign it a User password. 2. If you assigned a password to the Cayman 3220-H previously, enter your current password in the Old Password ﬁeld.
Page 74: Configuring Pinhole Settings
To display the Pinhole Conﬁguration window (Figure 3-16), click the Pinhole button on the Cayman 3220-H Home Page. You must be in Expert Mode to open the Pinhole Conﬁguration window. Cayman 3220-H User’s Guide...
Page 75 80 in this ﬁeld. After you have made this change, you will need to use this port number to open a Web connection to the Cayman 3220-H. For example, if you change the Web-HTTP port to 1080 on a Cayman...
Page 76 3-54 After you have made this change, you will need to include this port number when you open a Telnet connection to the Cayman 3220-H. For example, if you change the Telnet port to 1023 on a Cayman 3220-H using its default IP address ( open a Telnet connection to the device by entering in a DOS window or command line.
Page 77 Your router saves the new pinhole information and return you to the Cayman 3220-H home page. 14. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with its new conﬁguration. to indicate you want FTP to indicate you want Telnet Conﬁguring Your Cayman 3220-H...
Page 78: Configuring Bridge Settings
To display the Bridge Conﬁguration window (Figure 3-17), click the Bridge button on the Cayman 3220-H Home Page. You must be in Expert Mode to open the Bridge Conﬁguration window. Figure 3-17 Bridge Conﬁguration Window...
Page 79: Configuring Snmp Settings
Cayman 3220-H. You must enable at least two interfaces when you use bridging. 3. If you want to restrict bridged trafﬁc over an interface to PPP over Ethernet packets, click the PPPoE-Only Filter On button for the appropriate network interface.
Page 80 SNMP Setup window lets you enter SNMP conﬁguration information for your Cayman 3220-H. To display the SNMP Setup window (Figure 3-18), click the SNMP button on the Cayman 3220-H Home Page. You must be in Expert Mode to open the SNMP Setup window. Figure 3-18 SNMP Setup Window To conﬁgure the SNMP settings for your Cayman 3220-H:...
Page 81 For example, you might enter the building, ﬂoor, or room number where the Cayman 3220-H is located. 3. If you want the Cayman 3220-H to use authentication traps, click the Authentication Traps On radio button. If SNMP trapping is enabled, your Cayman 3220-H sends authentication traps to all SNMP trap destinations.
Page 82 Conﬁguring Your Cayman 3220-H 3-60 9. Click the Restart Cayman-DSL button on the Cayman 3220-H Home Page to restart your Cayman 3220-H with its new conﬁguration. Cayman 3220-H User’s Guide December 2000...
Page 83: About Root Commands
The Cayman 3220-H operating software includes a command line interface (CLI) that lets you monitor and conﬁgure your Cayman 3220-H over a Telnet or console connection. You can use the command line interface to enter and update a Cayman 3220-H’s conﬁguration settings, monitor its performance, and restart it.
Page 84 Using the Command Line Interface telnet ip_address You must know the IP address of the Cayman 3220-H before you can make a Telnet connection to it. By default, your Cayman 3220-H uses 192.168.1.254 as the IP address for its LAN interface. You can use a Web browser or the maintenance console to conﬁgure the Cayman...
Page 85 Logging In The command line interface log-in process emulates the log-in process for a UNIX host. If your Cayman 3220-H has been assigned an administrator password or user password, you must enter a username (up to 32 characters) and your password.
Page 86: Using The Cli Help Facility
You can save the changes you have entered for a speciﬁc function or for all functions in the Cayman 3220-H. The Cayman 3220-H automatically validates its settings when you save and displays a warning message if the conﬁguration is not correct.
Page 87: Root Command Shortcuts
Use the segment argument to ping a remote end node. end-to-end clear [yes] Clears the conﬁguration settings in a Cayman 3220-H. If you do not use the optional qualiﬁer, you are prompted to conﬁrm the command. clear...
Page 88 Runs a diagnostic utility to conduct a series of internal checks and loopback tests to verify network connectivity over each interface on your Cayman 3220-H. The console displays the results of each test as the diagnostic utility runs. If one test is dependent on another, the diagnostic utility indents its entry in the console window.
Page 89 [server_address] [filename] [confirm] Downloads a new version of the Cayman 3220-H operating software from a TFTP (Trivial File Transfer Protocol) server, validates the software image, and programs the image into the Cayman 3220-H memory.
Page 90 DNS information. ping [-s size] [-c count { hostname | ip_address } Causes the Cayman 3220-H to issue a series of ICMP Echo requests for the device with the speciﬁed name or IP address. argument:...
Page 91 [ vcc-id ] Releases the DHCP lease the Cayman 3220-H is currently using to acquire the IP settings for the speciﬁed DSL port. The identiﬁer is a letter in the range B–I. Enter the...
Page 92 [ vcc-id ] Renews the DHCP lease the Cayman 3220-H is currently using to acquire the IP settings of the speciﬁed DSL port. The identiﬁer is a letter in the range B–I. Enter the...
Page 93 You must enter the complete command to initiate a restart. restart show atm [all] Displays ATM statistics for your Cayman 3220-H. If you include the optional argument, your Cayman 3220-H will display a more detailed set of ATM statistics.
Page 94 You can include the argument to see the list of DHCP leases that used are in use or that have been used since your Cayman 3220-H was restarted. You can include the leases that are available for use. show dhcp server store Displays the DHCP leases stored in NVRAM by your Cayman 3220-H.
Page 95 Displays the current status of a Cayman 3220-H, the device's hardware and software revision levels, a summary of errors encountered, and the length of time the Cayman 3220-H has been running since it was last restarted. Identical to the start ppp vccn Opens a PPP link on the speciﬁed virtual circuit.
Page 96 Telnet session. traceroute { hostname | ip_address } Lets you trace the route between the Cayman 3220-H and the speciﬁed host. argument is the name of the device you want to hostname trace;...
Page 97: About Config Commands
When you are in CONFIG mode, the CLI prompt consists of the name of the Cayman 3220-H followed by your current node in the hierarchy and two right angle brackets (>>). For example, when you enter CONFIG mode (by typing prompt reminds you that you are at the top of the Dogzilla (top)>>...
Page 98 Scrolling backward and forward through recent commands — You can use the Up and Down arrow keys to scroll backward and forward through recent commands you have entered. When the command you want appears, press Enter to execute it. Cayman 3220-H User’s Guide December 2000...
Page 99: Entering Commands In Config Mode
Entering Commands in CONFIG Mode Cayman 3220-H User’s Guide December 2000 CONFIG commands consist of keywords and arguments. Keywords in a CONFIG command specify the action you want to take or the entity on which you want to act. Arguments in a CONFIG command specify the values appropriate to your site.
Page 100: Displaying Current Router Settings
If you enter the intermediate node, you see settings for that node and its subnodes. The Cayman 3220-H command line interface includes a step mode to automate the process of entering conﬁguration settings. When you use the CONFIG step mode, the command line interface prompts you for all required and optional information.
Page 101: Validating Your Configuration
Global Validation did not pass inspection! You can use the command to verify your conﬁguration validate settings at any time. Your Cayman 3220-H automatically validates your conﬁguration any time you save a modiﬁed conﬁguration. from the top . For example:...
Page 102: Config Commands
Enables or disables ATM services in the Cayman 3220-H. You must enable ATM services before you can enter other ATM settings for the Cayman 3220-H. If you turn off ATM services and save the new conﬁguration, the Cayman 3220-H clears its ATM settings.
Page 103: Bncp Settings
3220-H transmits trafﬁc for high-priority virtual circuits before it transmits trafﬁc for low-priority virtual circuits. If two virtual circuits have the same priority (high or low), the Cayman 3220-H splits the available bandwidth between them. set atm vcc n tx-max-kbps { 0 | 1-1000 } Speciﬁes the maximum upstream (transmission) rate of the virtual...
Page 104: Dhcp Settings
A device that acquires its IP address and other TCP/IP conﬁguration settings from the Cayman 3220-H can use the information for a ﬁxed period of time (called the DHCP lease). set dhcp option { off | server | relay-agent } Enables or disables DHCP services in the Cayman 3220-H.
Page 105: Domain Name System Settings
If you selected , speciﬁes the ﬁrst address in the DHCP server address range. The Cayman 3220-H can reserve a sequence of up to 253 IP addresses within a subnet, beginning with the speciﬁed address for dynamic assignment. set dhcp end-address ip_address If you selected , speciﬁes the last address in the DHCP address...
Page 106: Ip Settings
Enables or disables TCP/IP services in the Cayman 3220-H. You must enable TCP/IP services before you can enter other TCP/IP settings for the Cayman 3220-H. If you turn off TCP/IP services and save the new conﬁguration, the Cayman 3220-H clears its TCP/IP settings.
Page 107 Network Address Translation” on page C-2.. set ip dsl vccn proxy-arp { on | off } Speciﬁes whether you want the Cayman 3220-H to respond when it receives an address resolution protocol for devices behind it. By default, proxy ARP is turned off.
Page 108 { off | v1 | v2 | v1-compat | v2-MD5 } Speciﬁes whether the Cayman 3220-H should use Routing Information Protocol (RIP) broadcasts to advertise its routing tables to other routers on your wide area network (WAN). RIP Version 2...
Page 109: Ethernet Settings
Cayman 3220-H User’s Guide December 2000 3220-H receives a RIP packet, it uses the expected key to create an MD-5 digest of the RIP message. It then compares this calculated digest to the MD-5 digest sent with the RIP packet. If the calculated digest does not match the received digest, the RIP message is discarded.
Page 110 Cayman 3220-H. set ip ethernet proxy-arp { on | off } Speciﬁes whether you want the Cayman 3220-H to respond when it receives an address resolution protocol for devices behind it. By default, proxy ARP is turned off.
Page 111: Default Ip Gateway Settings
3220-H receives a RIP packet, it uses the expected key to create an MD-5 digest of the RIP message. It then compares this calculated digest to the MD-5 digest sent with the RIP packet. If the calculated digest does not match the received digest, the RIP message is discarded.
Page 112: Ip-Over-Ppp Settings
PPP interface will use the IP address assigned to it by the remote peer. Note that the remote peer must be conﬁgured to supply an IP address to your Cayman 3220-H if you enter 0.0.0.0 for the...
Page 113 Speciﬁes the IP address of the peer on the other end of the PPP link. If you specify an IP address other than 0.0.0.0, your Cayman 3220-H will not negotiate the remote peer's IP address. If the remote peer does not accept the address in the address (typically because it has been conﬁgured with another IP...
Page 114 4-32 When Van Jacobson header compression is turned on, your Cayman 3220-H allocates memory for 16 slots (headers) by default. The number of slots may be reduced during link conﬁguration if the remote peer can only support a lower number.
Page 115: Static Route Settings
ARP table entries, static ARP table entries do not time out. You can conﬁgure as many as 16 static ARP table entries for a Cayman 3220-H. Use the following commands to add static ARP entries to the Cayman 3220-H static ARP table: set ip static-arp ip-address ip_address Speciﬁes the IP address for the static ARP entry.
Page 116 Using the Command Line Interface 4-34 You can conﬁgure as many as 16 static IP routes for a Cayman 3220-H. Use the following commands to maintain static routes to the Cayman 3220-H routing table: set ip static-routes destination-network net_address Speciﬁes the network address for the static route. Enter a network address in the argument in dotted decimal format.
Page 117: Wan Settings
WAN settings. set ip wan vccn address ip_address Assigns an IP address to the Cayman 3220-H on the speciﬁed VCC. The IP address you assign must be unique on your network. set ip wan vccn broadcast broadcast_address Speciﬁes the broadcast address for the TCP/IP network connected to...
Page 118: Network Address Translation (Nat) Default Settings
ARP is turned off. NAT default settings let you specify whether you want your Cayman 3220-H to forward NAT trafﬁc to a default server when it doesn’t know what else to do with it. The NAT default host function is useful in situations where you cannot create a speciﬁc NAT pinhole for a...
Page 119: Network Address Translation (Nat) Pinhole Settings
Pinhole Settings Cayman 3220-H User’s Guide December 2000 otherwise be discarded by the Cayman 3220-H should be directed to a speciﬁc hosts. set nat-default option { off | on } Speciﬁes whether you want your Cayman 3220-H to forward NAT trafﬁc to a default server when it doesn’t know what else to do with...
Page 120: Ppp Settings
Speciﬁes the port number your Cayman 3220-H should use when forwarding trafﬁc of the speciﬁed type. Under most circumstances, you would use the same number for the external and internal port.
Page 121 Speciﬁes whether you want your Cayman 3220-H to send LCP echo requests. By default, LCP echoing is turned on. You should turn off LCP echoing if you do not want the Cayman 3220-H to drop a PPP link to a nonresponsive peer.
Page 122 PPP module vccn connection-type { instant-on | always-on } Speciﬁes whether a PPP connection is maintained by the Cayman 3220-H when it is unused for extended periods. If you specify , the Cayman 3220-H never shuts down the PPP link. If always-on...
Page 123: Port Authentication
As a result, the port authentication names for PAP and CHAP must be identical to the peer names for your Cayman 3220-H on the remote peer. If you do not conﬁgure a chap-name or pap-name, then the authentication packets sent by the local peer will have blank name values.
Page 124 PAP password used by the PPP peer. Conﬁguring Peer Authentication You can specify that your Cayman 3220-H will use PAP, CHAP, or both to authenticate a remote peer as a PPP link is being completed. Perform the following steps to specify how your Cayman 3220-H should authenticate remote peers.
Page 125: Command Line Interface Preference Settings
December 2000 set PPP module vccn peer-authentication chap-option { on | off } Speciﬁes whether the Cayman 3220-H will use CHAP to authenticate connections to PPP peers. By default, CHAP authentication is turned off. set PPP module vccn peer-authentication pap-option { on | off } Speciﬁes whether the Cayman 3220-H will use PAP to authenticate...
Page 126: Port Renumbering Settings
(which is useful for capturing information to a text ﬁle). If you use NAT pinholes to forward HTTP or Telnet trafﬁc through your Cayman 3220-H to an internal host, you must change the port numbers the Cayman 3220-H uses for its own conﬁguration trafﬁc.
Page 127: Snmp Settings
[ 0 - 32767 ] Speciﬁes the port number for Telnet (CLI) communication with the Cayman 3220-H. Because port numbers in the range 0-1024 are used by other protocols, you should use numbers in the range 2000-32767 when assigning new port numbers to the Cayman 3220-H Telnet conﬁguration interface.
Page 128: System Settings
Identiﬁes the location, such as the building, ﬂoor, or room number, of the Cayman 3220-H. You can enter up to 256 characters for the argument. You must put the location_info argument in double-quotes if it contains embedded spaces.
Page 129: Traffic Shaping Settings
Passwords are case-sensitive and cannot include special characters or leading, trailing, or embedded spaces. For example, if you assign a password of “GatoR” to a Cayman 3220-H, you could not enter “GATOR”, “gator”, “Gator”, or “GatoR ” (with a trailing space) as an acceptable password.
Page 130 { on | off } Enables or disables trafﬁc-shaping in the Cayman 3220-H. set trafficshape ethernet option { on | off } Enables or disables trafﬁc-shaping on the designated Ethernet interface.
Page 131 Cayman 3220-H User’s Guide December 2000 Monitoring Your Cayman 3220-H Displaying the Overview Status Displaying Memory Statistics Displaying DHCP Client Statistics Displaying DHCP Server Statistics Displaying DSL Statistics Displaying PPP Statistics Displaying PPPoE Statistics Displaying Ethernet Statistics Displaying ATM Statistics...
Page 132: Displaying The Overview Status
Monitoring Your Cayman 3220-H The Monitor window lets you display information about the status of your Cayman 3220-H. To open the Monitor window, click the Monitor button on the Cayman 3220-H Home Page. When the Monitor window opens, click the button for the type of information you want.
Page 133: Displaying Memory Statistics
Statistics Cayman 3220-H User’s Guide December 2000 The Memory monitor window displays information about memory allocation in your Cayman 3220-H. To display the Memory monitor window, click the Memory button on the Monitor window. Figure 5-2 Memory Monitor Monitoring Your Cayman 3220-H...
Page 134: Displaying Dhcp Client Statistics
Displaying DHCP Client Statistics Monitoring Your Cayman 3220-H As a DHCP client, your Cayman 3220-H can accept IP address information from a DHCP server on your network. To display the DHCP Client Statistics window, click the DHCP Client button on the Monitor window.
Page 135: Displaying Dhcp Server Statistics
The DHCP monitor window displays the Ethernet hardware address that corresponds to each IP address your Cayman 3220-H has assigned to a device on your network. To display the DHCP Server Statistics window, click the DHCP Server button on the Monitor window.
Page 136: Displaying Dsl Statistics
Displaying DSL Statistics Monitoring Your Cayman 3220-H The DSL Statistics window (Figure 5-5) displays information about the upstream and downstream trafﬁc traveling over the ADSL port. To display the DSL Statistics window, click the DSL button on the Monitor window.
Page 137: Displaying Ppp Statistics
Displaying PPP Statistics Cayman 3220-H User’s Guide December 2000 The PPP Statistics monitor window (Figure 5-6) displays information about the PPP connection maintained over an ATM link. To display the PPP Statistics window, click the PPP button on the Monitor window.
Page 138: Displaying Pppoe Statistics
Displaying PPPoE Statistics Monitoring Your Cayman 3220-H The PPPoE Statistics monitor window (Figure 5-7) displays information about the PPPoE connection maintained over an ATM link. To display the PPPoE Statistics window, click the PPPoE button on the Monitor window. Figure 5-7 PPPoE Statistics Cayman 3220-H User’s Guide...
Page 139: Displaying Ethernet Statistics
Statistics Cayman 3220-H User’s Guide December 2000 The Ethernet Statistics monitor window displays information about each Ethernet interface for your Cayman 3220-H. To display the Ethernet Statistics window, click the Ethernet button on the Monitor window. Figure 5-8 Ethernet Statistics...
Page 140: Displaying Atm Statistics
Displaying ATM Statistics Monitoring Your Cayman 3220-H 5-10 The ATM Statistics monitor window displays information about the ATM trafﬁc traveling over the ADSL port. To display the ATM Statistics window, click the ATM button on the Monitor window. Figure 5-9 ATM Statistics Cayman 3220-H User’s Guide...
Page 141: Displaying The Diagnostic Log
Diagnostic Log Cayman 3220-H User’s Guide December 2000 Your Cayman 3220-H maintains a log ﬁle consisting of diagnostic and error messages it generates during operation. The Diagnostic Log window (Figure 5-10) displays the contents of the Cayman 3220-H diagnostic log. To display the Diagnostic Log window, click the Log: Show button on the Monitor window.
Page 142: Displaying Ip Interface Statistics
Statistics Monitoring Your Cayman 3220-H 5-12 The IP Interfaces monitor window displays information about the Ethernet ports on your Cayman 3220-H. To display the IP Interfaces Statistics window, click the IP Interfaces button on the Monitor window. Figure 5-11 IP Interface Monitor Cayman 3220-H User’s Guide...
Page 143: Displaying Ip Arp Statistics
Cayman 3220-H User’s Guide December 2000 The IP ARP table displays the address resolution information maintained by the Cayman 3220-H. To display the IP ARP Statistics window, click the IP ARP button on the Monitor window. Figure 5-12 IP ARP Monitor...
Page 144: Displaying Ip Routes
Monitoring Your Cayman 3220-H 5-14 The IP Routes window displays information about the IP routes stored in your Cayman 3220-H. To display the IP Routes window, click the IP Routes button on the Monitor window. Figure 5-13 IP Routes Monitor Cayman 3220-H User’s Guide...
Page 145: Displaying Bridge Interface Statistics
Cayman 3220-H User’s Guide December 2000 The Bridge Interface Statistics window displays information about the bridge trafﬁc maintained by your Cayman 3220-H. To display the Bridge Interface Statistics window, click the Bridge: Interfaces button on the Monitor window. Figure 5-14...
Page 146: Displaying Bridge Table Statistics
Table Statistics Monitoring Your Cayman 3220-H 5-16 The Bridge Table Statistics window displays information about the bridging table maintained by your Cayman 3220-H. To display the Bridge Table Statistics window, click the Bridge: Table button on the Monitor window. Figure 5-15 Bridge Table Statistics Window Cayman 3220-H User’s Guide...
Page 147: Using The Diagnose Utility
December 2000 The Diagnose utility runs a series of internal checks and loopback tests to verify network connectivity over each interface on your Cayman 3220-H. To run the Diagnose utility, click the Diagnose button on the Monitor window. Figure 5-16...
Page 148 Monitoring Your Cayman 3220-H Cayman 3220-H User’s Guide 5-18 December 2000...
Page 149: Updating Your System Software
Using the Installer to Install a New Image Using TFTP to Install a New Image You can install a new operating system image in your Cayman 3220-H from the Home Page. To do so, the computer you are using to connect to the Cayman 3220-H must be on the same local area network as the Cayman 3220-H.
Page 150 If you have not previously saved your conﬁguration (that is, if you are running the factory default conﬁguration your Cayman 3220-H came with), click the Ethernet button on the Cayman 3220-H home page. When the Ethernet window appears, click Save.
Page 151: Using The Installer To Install A New Image
You must run the Installer utility from a computer running Windows 95, Windows 98, or Windows NT on the Cayman 3220-H local area network. To install new operating system software in your Cayman 3220-H from a Windows computer: 1.
Page 152: Using Tftp To Install A New Image
Cayman from the Start menu and choose the Installer program. 9. When the Installation Target Selection window appears, enter the name or IP address of your Cayman 3220-H in the IP Address or Name text ﬁeld. The default IP address is 10.
Page 153 Cayman 3220-H User’s Guide December 2000 To install new operating system software in your Cayman 3220-H from a TFTP server: 1. Download the software image from http://www.cayman.com 2. Copy the ﬁle to the TFTP server for your location. 3. Use the...
Page 154 Updating Your System Software Cayman 3220-H User’s Guide December 2000...
Page 155: Technical Specifications
Components Interfaces Power Cayman 3220-H User’s Guide December 2000 Technical Speciﬁcations Technical speciﬁcations and certiﬁcations subject to change. Changes or modiﬁcations not expressly approved by Cayman Systems can void your authority to operate the equipment. Processor Motorola MPC 850 Memory...
Page 156: Size
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning Cayman 3220-H User’s Guide December 2000...
Page 157: Fcc Part 68 Notice
FCC Part 68 Notice Cayman 3220-H User’s Guide December 2000 the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver...
Page 158 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. Cayman 3220-H User’s Guide December 2000...
Page 159 Cayman 3220-H User’s Guide December 2000 Notice The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed ﬁve (5).
Page 160 Technical Speciﬁcations Cayman 3220-H User’s Guide December 2000...
Page 161: Diagnostic Console
Cayman 3220-H maintenance console port and restarting into diagnostic (EPROM) mode. To use the Cayman 3220-H diagnostic console, you need a serial cable and either a terminal or terminal emulator (such as a personal computer with a terminal emulation application that supports 9600-baud communication).
Page 162: Connecting A Terminal To The Console Port
Terminal to the Console Port Diagnostic Console To connect your Cayman 3220-H to a terminal or terminal emulator: 1. Turn off the Cayman 3220-H. 2. Plug one end of the serial cable into the maintenance console port on the Cayman 3220-H back panel.
Page 163: Using The Diagnostic Console
When you ﬁnish using the diagnostic console, turn your Cayman 3220-H off and on to return it to normal operation. This section presents the commands you will use to enter, modify, or clear settings in the Cayman 3220-H EPROM.
Page 164: Basic Commands
3220-H to their factory default values. After you reset the Cayman 3220-H EPROM values to their defaults, you must save them to non-volatile storage with the save command. The default boot settings for the Cayman 3220-H are presented in the following table. Setting Explanation Use the image in flash memory if possible.
Page 165: Administration Commands
[{ flash | tftp | bootp }] [nogo] If you do not enter an argument, the boot command causes the Cayman 3220-H to behave as if it had been powered up with autoboot enabled. That is, it will try to download its image from ﬂash, TFTP, and BOOTP (if enabled) in that order.
Page 166 The erase command completely erases the speciﬁed ﬂash memory area in the Cayman 3220-H. erase code clears the code ﬂash in the Cayman 3220-H. erase options clears the parameter ﬂash (not the EPROM settings). Compare to the clear command, which clears the current and non-volatile copies of the Cayman 3220-H EPROM settings.
Page 167: Boot Setting Commands
{ retry_count | off } The autoboot retry_count whole number) sets the number of times the Cayman 3220-H should attempt to start an image and run it when powered up. If you enable autoboot with the autoboot command (where...
Page 168 1. If ﬂash is enabled, start an image from the Cayman 3220-H code ﬂash memory, using the conﬁgured image number; else 2. If ip is enabled, load an image via IP TFTP using the conﬁgured IP server, IP gateway, netmask and ﬁlename;...
Page 169 ARP cache inconsistencies on your IP hosts. ipgateway ip_address The ipgateway ip_address the router (if any) between the Cayman 3220-H and its IP TFTP server in dotted decimal notation. Enter ipgateway 0 to disable the IP gateway function. ipnetmask netmask The ipnetmask command speciﬁes the subnet mask for...
Page 170 Diagnostic Console Cayman 3220-H User’s Guide B-10 December 2000...
Page 171: About Ppp
These switches use virtual path identiﬁers and virtual circuit identiﬁers to direct cells as they travel. Cells are switched onto paths operating at up to gigabit-per-second transmission speeds. How Your Cayman 3220-H Works...
Page 172: About Network Address Translation
Sites communicating through an Internet service provider typically enable NAT, since they often receive one IP address from the ISP. When NAT is disabled, the Cayman 3220-H acts as a traditional TCP/IP router. It uses RIP (Routing Information Protocol) to advertise the networks connected to its Ethernet ports to the routers on the other end of the network connection.
Page 173: About Bridging And Routing
Bridges let you join two local area networks, so that they appear to be part of the same physical network. As a bridge for protocols other than TCP/IP, your Cayman 3220-H keeps track of as many as 255 MAC (Ethernet hardware) addresses, each of which uniquely identiﬁes an individual host on a network.
Page 174: About Dhcp
MAC address and the interface appropriate for reaching that host to its bridging table. The Cayman 3220-H tracks the age of each entry in its bridging table, and deletes entries that aren't used after 10 minutes. If more than 255 entries are active at the same time, the Cayman 3220-H discards the oldest entries to make room for new ones.
Page 175: Cayman 3220-H As Dhcp Client
IP addresses among a group of clients that do not need permanent IP addresses. The Cayman 3220-H is conﬁgured at the factory to act as a DHCP client on its WAN port. This means that, if substitute IP address information is not conﬁgured for the WAN port, the Cayman 3220-H...
Page 176: Phases Of A Ppp Link
Dial-in -- If a port is conﬁgured as a dial-in interface, the router sends an initialization string to the modem when it is turned on to prepare it to accept calls. When the local modem receives an...
Page 177: Link Configuration
Cayman 3220-H User’s Guide December 2000 Dial-out -- If a port is conﬁgured as a dial-out interface, the router opens a PPP link when an internal Network Protocol routes a packet out the PPP interface. If PPP determines that the serial connection is not open, the router passes a telephone number and modem conﬁguration information to the modem, which...
Page 178 How Your Cayman 3220-H Works proposes new settings acceptable to the second peer. A Conﬁgure-Nak message may also include proposed conﬁguration settings for options that the second peer requires but that the ﬁrst peer did not include in its Conﬁgure-Request.
Page 179 If you specify that a serial port can use either CHAP or PAP to authenticate a remote peer (that is, both CHAP and PAP are enabled), the router tries to use CHAP to authenticate connection requests. If the remote peer does not support CHAP, the router requires that the remote peer use PAP to authenticate itself.
Page 180: Network Configuration
Your 3220-H maintains a routing table for its IP routing service. The routing table identiﬁes the networks a router can reach, the interface...
Page 181: Static And Dynamic Routes
A route to a network connected directly to the router has a metric of 1, a route to a network reachable through one other gateway has a metric of 2, and so on.
Page 182: Dealing With Unavailable Routes
How Your Cayman 3220-H Works C-12 If the router has a static route and a dynamic route with the same metric, it uses the static route and discards the dynamic route. If a router has one dynamic route to a remote network but learns of another with the same metric, it retains the existing route and discards the new route.
Page 183: About Ppp Over Ethernet (Pppoe
If route ﬂushing is turned off, the router does not change the route's status or metric when the link goes down. Instead, it maintains its routing table entry and freezes the RIP timer for the route.
Page 184: Ppp Over Ethernet Stages
PPP over Ethernet Stages How Your Cayman 3220-H Works C-14 PPPoE requires no additional knowledge on the part of the end user other than that needed for traditional dial-up Internet access. Multiple users can share a broadband connection without additional support or training costs, making it PPPoE ideal for small ofﬁces/home ofﬁces.
Page 185 Access Concentrator can terminate the session by sending the other a PPPoE Active Discovery Terminate (PADT) packet. When this occurs, no further PPP trafﬁc, including standard PPP termination trafﬁc, is permitted between the host and the Access Concentrator. How Your Cayman 3220-H Works C-15...
Page 186 How Your Cayman 3220-H Works Cayman 3220-H User’s Guide C-16 December 2000...
Page 187: Glossary
ADSL ANSI ASCII Cayman 3220-H User’s Guide December 2000 Glossary IEEE 802.3 speciﬁcation for Ethernet that uses thin coaxial cable to run at 10 Mbps. Limited to 185 meters per segment. 10Base5 IEEE 802.3 baseband physical layer speciﬁcation for Ethernet that uses thick coaxial cable to run at 10 Mbps.
Page 188 Storage area used to hold data until it can be forwarded. Signal suitable for transmission of information. Comité Consultatif International Télégraphique et Téléphonique or Consultative Committee for International Telegraph and Telephone. An international organization responsible for developing telecommunication standards. Carrier Detect. Cayman 3220-H User’s Guide December 2000...
Page 189 CSU/DSU data bits datagram dedicated line Cayman 3220-H User’s Guide December 2000 Challenge-Handshake Authentication Protocol. Security protocol in PPP that prevents unauthorized access to network services. See RFC 1334 for PAP speciﬁcations Compare PAP. Network node that requests services from a server.
Page 190 Glossary Dynamic Host Conﬁguration Protocol. A network conﬁguration protocol that lets a router or other device assign IP addresses and supply other network conﬁguration information to computers on your network. Port setting that speciﬁes that other routers can initiate a connection to the local router but that the local router cannot initiate a connection to other routers.
Page 191 FTP server hardware handshake HDLC HDSL header Cayman 3220-H User’s Guide December 2000 Technique used to enclose information formatted for one protocol, such as AppleTalk, within a packet formatted for a different protocol, such as TCP/IP. The application of a speciﬁc algorithm to a data set so that anyone without the encryption key cannot understand the information.
Page 192 Random number generated by a router and included in packets it sends to other routers. If the router receives a packet with the same magic number it is using, the router sends and receives packets with new random numbers to determine if it is talking to itself.
Page 193 December 2000 Distance, measured in the number of routers a packet must traverse, that a packet must travel to go from a router to a remote network. A route with a low metric is considered more efﬁcient, and therefore preferable, to a route with a high metric. See hop count.
Page 194 Table stored in a router or other networking device that records available routes and distances for remote network destinations. Request to Send. Circuit activated in hardware ﬂow control when a computer (or other DTE) is ready to transmit data to a modem (or other DCE).
Page 195 T1 link Telnet twisted pair xon/xoff Cayman 3220-H User’s Guide December 2000 A 32-bit address mask that identiﬁes which bits of an IP address represent network address information and which bits represent node identiﬁer information. Method of data communication requiring the transmission of timing signals to keep PPP peers synchronized in sending and receiving blocks of data.
Page 196 Glossary Cayman 3220-H User’s Guide December 2000...
Page 197 Asynchronous Transfer Mode (ATM) 1-1 ATM 1-1 ATM Configuration window 3-17 ATM statistics 4-9 authentication 4-39 authentication trap 3-59, 4-43 autoboot command B-7 Cayman 3220-H User’s Guide December 2000 Index back panel, Cayman3220-H 1-4 bandwidth shaping 1-2 boot command B-5 bootp command B-8...
Page 198 DHCP relay-agent lease 4-11 Diagnose utility 1-3 diagnostic console B-1 diagnostic log 4-7, 4-10, 4-12, 5-11 diagnostic log level 4-45 disconnecting your Cayman 3220-H 2-5 DNS 4-23 documentation conventions viii domain name 3-14, 4-23 domain name server 3-14 Domain Name System (DNS) 4-23...
Page 199 B-8 filter 3-57 flash command B-8 flow control 4-3 flush routes 4-31 front panel, Cayman 3220-H 1-4 FTP 3-52, 4-35, 4-36 gateway 3-27, 3-30, 3-34, 3-38, 3-42, 3-49, 4-28 hardware address 4-21 hardware revision level 5-2 Help button 3-10...
Page 200 PPPoE filter 3-57 primary nameserver 3-14, 4-23 priority 4-21 program command B-6 prompt, CLI 4-4, 4-15 protocol compression 4-38 proxy ARP 4-25, 4-27, 4-35 QuickStart 2-1 Quickstart button 3-10 QuickStart window 3-11 quit command 4-9 Cayman 3220-H User’s Guide December 2000...
Page 201 4-2 server address 3-16 set atm commands 4-20 set bncp command 4-21 set bridge commands 4-22 Cayman 3220-H User’s Guide December 2000 set dhcp commands 4-22 set dns commands 4-23 set ip commands 4-24 set ip dsl commands 4-24...
Page 202 35, 3-39, 3-44, 3-47, 4-20 VPI, see virtual path identifier WAN 1-2 IP address 3-14 subnet mask 3-14 WAN LED 1-4 who command 4-14 Wide Area Network (WAN) 1-2 Windows 95 3-7 Windows 98 3-7 Windows NT 3-7 Cayman 3220-H User’s Guide December 2000...

Cayman Systems 3220-H User Manual

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