router_eSIM_v11_faq

1-1 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Router eSIM™ Student Version 1.1 FAQ 1-2 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Changes in Router eSIM™ Student Version 1.1 Router eSIM™ Changes: 1. The output of show protocols now also displays subnet mask information. 2. When using the telnet feature, the prompt did not change to the hostname of the router. Instead, the hostname was erroneously returned as “Lab_A.” This IP host problem has been corrected. 3. The numeric keypad functionality has now been implemented to work on all Windows and Macintosh platforms. 4. The “show interface” command will now display the description that you configured on an interface. 5. A problem with login on telnet sessions has been fixed. By default, the login function should be off and will allow a telnet session without a password being set. 6. Previously, Router eSIM was checking the VTY password for console access which caused a login problem when you only configured the password and login function for "line con 0," and not for "vty 0 4." This has been corrected. FAQ Changes: 1. The following frequently asked questions were added to the FAQ: · Why do I get this error message when I run Router eSIM™ Student Version? (Question 2) · Why does the Router eSIM™ Student Version only use the US keyboard layout? (Question 3) · Why do I get an invalid input message when I try to enter the command interface serial 1? (Question 22) · Are the times that are returned in the ping and trace route command accurate? (Question 30) 2. The following frequently asked question was removed from the FAQ: · How do the Router eSIM™ Student Version commands differ from those used on routers? While the correct command is "clock rate 56000", "clockrate 56000" is also accepted by Cisco IOS. Router eSIM™ now supports both commands. 1-3 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Router eSIM™ Student Version FAQ Router eSIM™ Student Version is a product designed for the Cisco Networking Academy Program to supplement lab work by giving you the opportunity to practice router commands without being connected to a router. The following are answers to frequently asked questions about the Router eSIM™ Student Version. 1. Are all IOS commands supported by Router eSIM™ Student Version? Router eSIM™ Student Version supports most but not all IOS commands needed to complete semester 2 activities. If a command is issued that is not supported by the program, a “pop-up” dialog box will appear indicating that this simulation does not support the command. 2. Why do I get this error message when I run Router eSIM™ Student Version? Router eSIM™ Student Version is created with Macromedia Flash. When the Flash Player is executing a one-frame ActionScript and takes longer than 15 seconds to do so, it will ask you to decide whether to abort the script or not. This is just an alert and not an error message. If you click "No," the script will still be executed properly. Slower computers are likely to display this alert. 3. Why does the Router eSIM™ Student Version only use the US keyboard layout? Router eSIM™ Student Version is created with Macromedia Flash which may misinterpret keystrokes on non-English keyboards. If this happens, you may need to switch your keyboard settings to a US keyboard layout. To do so, follow these steps: Windows 2000 1-4 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc · From the "Start Menu," select "Settings" and then "Control Panel." · Double click "Keyboard," which will open the "Keyboard Properties" window. · Select the "Input Locales" tab and then "Add ..." This will open the "Add Input Locale" window. · Under "Input Locale:," select "English (United States)." · Under "Keyboard layout/IME:," select "United States-Dvorak." · While running Router eSIM™, make sure that "English (United States)" is selected on the taskbar. For more information, see: http://www.microsoft.com/globaldev/keyboards/keyboards.asp Macintosh · From the "Apple Menu," select "Control Panels" and then "Keyboard." · On the "Keyboard" control panel, under "Keyboard Layouts," check "U.S." · While running Router eSIM™, make sure that "U.S." is selected on the "Keyboard Menu," in the main menu bar. 4. What other features are not supported by Router eSIM™ Student Version? Among the features that Router eSIM™ Student Version does not support are Access Lists, the interface up/down status messages, and copying to and from a TFTP server. 5. What common commands are not supported by Router eSIM™ Student Version? Among the commands that Router eSIM™ Student Version does not support are the extended ping command, the show sessions command, and the reload command. (See Appendix A for supported commands.) 6. Can the labs be done using the Router eSIM™ Student Version? Many of the labs can be done using Router eSIM™ Student Version. However, since some commands are not supported, you will still need 1-5 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc to have access to the router lab in your school to complete all the labs. (See Appendix B for labs that are supported.) 7. Does the Router eSIM™ Student Version support RIP updates? Router eSIM™ Student Version only supports RIP updates within the context of the standard five-router environment of the Cisco Networking Academy Program. Other addressing schemes will be accepted but the routing tables will not be updated and the interactive commands such as Ping, Traceroute, and Telnet will not function correctly. 8. Does the help command display all possible commands? The help command does not display all commands of the help system. 9. How does the simulation differ from a Windows HyperTerminal application? Unlike a real Windows HyperTerminal application, the simulation uses “CiscoTerminal” that does not let you click on the space above or below the button in the scroll bar. Instead, click the scroll bar arrows (up and down) or drag the sliders or scrolls. To close the simulation, click on the exit button in the lower left hand corner of the screen. 10. Are there limitations of the Telnet command? The Telnet command will only function from the active router. If you try to change to another router’s console connection, by clicking on the “Router Buttons” located on the left-hand side of the screen, all existing Telnet sessions for the first router will be closed. 11. Why are some prompts different from those generated by routers? While the current version of Router eSIM™ Student Version is a stand-alone executable program, there may also be browser-based uses of the tool in .swf format. To accommodate those situations, the prompt displayed in the configuration mode has been adjusted to compensate for browsers that do not support the sequence Ctrl + Z to exit the mode. Instead of displaying “end with CTRL/Z”, the prompt displays “end with END.” While CTRL/Z is supported, under certain configurations it does not work properly. We have added the “end with END” in order to allow for those situations. 12. Sometimes when I type in a command, it does not display immediately. Why does this happen? 1-6 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Router eSIM™ Student Version is built with Macromedia Flash and ActionScript, an interpreted language within an application. Each single instruction in Flash translates into thousands of instructions at execution. Performance difficulties are to be expected, especially on slower computers. 13. What is the function of the Escape key? The first time the escape key is pressed will cause the Router eSIM™ Student Version window to toggle from full screen to a smaller window size. To restore Router eSIM™ to full screen mode, press CTRL + F or click on the maximize button of the window. 14. Why does Ctrl + B, Ctrl + Z, etc. seemingly only work sometimes? When you press, for example Ctrl + B, you need to press Ctrl first, then press B, and then release both keys. To go back another character, do the same again. You will encounter difficulties in this simulation if you hold down Ctrl and press B repeatedly. It will allow you to move back a space, but then it will start inserting the letter B. 15. What do I press when I see the “More” prompt? To advance one screen of information, press the “Spacebar.” To advance one line of information, press the “Enter” key. To “escape” from the “-- more --” prompt press any key other than the spacebar, enter, or escape key. 16. Do the routers need to be turned on? All routers are “powered on” when you start Router eSIM™ Student Version. You cannot restart the routers with the “Reload” command. 17. How can I clear the configuration on all five routers? To restore all five routers to “factory defaults” exit and restart the Router eSIM™ Student Version. 18. Are passwords required to access the simulated routers of the Router eSIM™ Student Version? When Router eSIM™ Student Version is started, there are no passwords on any of the routers, since the routers have no “startup configuration” files. If you select the “Set Configuration” feature, the passwords are set to Academy defaults: “cisco” to enter user mode and “class” to enter privileged exec mode. 1-7 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc 19. How does Router eSIM™ Student Version respond to a command that is entered incorrectly? Router eSIM™ Student Version responds to commands that are entered incorrectly in the same manner as routers would, by showing the incorrect syntax message. 20. How can I view the topology of the network? By clicking on the “Show Topology” button, students can view the topology of the standard five-router environment of the Cisco Networking Academy Program curriculum and the supported addressing scheme. Clicking the button a second time hides the topology. 21. How can I check if I have finished configuring the router? The “Show Done” button allows you to check how far you have configured each router. 22. Why do I get an invalid input message when I try to enter the command interface serial 1? If you are trying to configure serial port 1 on router A or E, you will get an error because the interface is not physically connected to another device. The same will happen if you try to configure serial 0 on router D or E. Routers B, C, and D allow the interface serial 1 command. 23. Is there a feature that automatically configures the routers? The “Set Configuration” feature, accessible via the “Show Done” button, configures the routers. This feature is not intended for beginning students who generally need to practice configuring routers. Instead, this feature is useful for more advanced students who are familiar with configuring the routers and who require the routers to be configured already to complete other tasks. The “Set Configuration” option will save these advanced students the time required to configure each of the routers individually. Please note that if you use the "Set Configuration" option for a particular router, the button will be highlighted and cannot be reset until the program is restarted. 24. How can an instructor tell whether a student has configured a router manually or used the “Set Configuration” button? Once the “Set Configuration” button has been clicked for a particular router, the button remains set (indicated by white text on a black background). 1-8 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc 25. Does the “Set Configuration” feature incorporate the configuration commands previously entered? Once the “Set Configuration” feature is selected, all your work is erased and replaced with the Cisco Networking Academy Program standard configuration. This includes all IP addresses entered. 26. Can a partial configuration be saved or loaded? No, Router eSIM™ Student Version does not have the ability to save or load a partial configuration. 27. Can I configure any interface on any router? Only the interfaces that are used in the standard five-router environment of the Cisco Networking Academy Program can be configured in Router eSIM™.. 28. Is the switch connected to Lab_A supported? You cannot configure this switch. Additionally, this switch does not show up in the CDP commands executed on Lab_A. 29. Are the statistics displayed by Router eSIM™ Student Version accurate? The “show interfaces” command shows the status of the interface, the MAC address (if the interface is an Ethernet port), and the IP address of the interface, if assigned. The counters and other statistics displayed do not reflect the result of traffic across the interface. 30. Are the times that are returned in the ping and traceroute command accurate? No, the times listed in the ping and traceroute are hard coded, that is, they are programmed to output a set time. The parts of the ping output that are dynamic, meaning that the output is dependent on your input/configuration, are the period (.), which shows that the ping was unsuccessful, or the exclamation point (!), which indicates the ping was successful. For the traceroute command, the dynamic output is the IP addresses. 31. Where can I send comments, questions, and concerns regarding Router eSIM™ Student Version? You can send comments, questions, and concerns to eSIM™- quality@cisco.com, or you can read and post comments to the 1-9 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc support forum at http://cisco.netacad.net/cnacs/prot- bin/forum_get?esim+current+FT+index.html. 1-10 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Appendix A: Supported Commands Mode Command User disable enable exit help ping show traceroute Privileged clear configure copy disable enable erase erase start exit help ping show telnet traceroute Show (User Mode) clock flash history hosts users version Show (Privileged Mode) arp cdp clock configuration flash history hosts protocols running-config startup-config version interfaces Global Config banner enable exit hostname interface ip line no 1-11 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc router Interface Config clock description exit ip no shutdown Line Config exit history login no password Router exit network no rip 1-12 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc Appendix B: Router eSIM™ Compatibility with Cisco Networking Academy Semester 2 Labs Note: It is recommended that eSIM™ be closed before starting a new lab. Number Lab Name Notes 2.2.2 Router Characteristics Steps 1 & 2 require physically examining a router, which eSIM™ does not support. Step 3 asks about settings in HyperTerminal, which is not supported in this version. Step 4 can be completed in eSIM™. 2.2.3.1 Router Lab Setup Steps 1 & 2 discuss the physical setup of the 5 routers, which is not supported. Step 3 requires examination and setup of the V.35 cables between the routers, which is not supported. Step 4 can be completed by examining the topology in eSIM™ or in the lab manual. Step 5 requires cabling the workstations, which eSIM™ does not support. Step 6 & 7 require connecting the console cable & power cables, which eSIM™ does not support. Step 8 requires you to draw a diagram of the network in your lab manual. 2.2.3.2 Router Lab Configuration To complete this lab, the instructor should use the “Set Configuration” option for all five routers in eSIM™. The instructor may want to do this, or tell you how to use the “Set Configuration” option. Since an instructor can always tell when Set Configuration has been used, (i.e. the buttons for each router indicate whether configuration has been set), you will not be able to claim that you have completed the setup of the router manually. Step 1 requires you to verify the physical connections, which eSIM™ does not support. Step 2 can be completed in eSIM™. Step 3 cannot be completed, since eSIM™ does not support the configuration of the workstations. 3.2.1 Router User Interface This lab assumes that the “Set Configuration” 1-13 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc option has been selected for the router you will be using. Steps 1 – 9 can be completed in eSIM™. NOTE: For Step 8, eSIM™ supports CTRL-P to access the command history. When using CTRL-P, be sure to release the CTRL key after each time you scroll back through the history, otherwise an extra “P” character is displayed in the CiscoTerminal screen. 3.2.2 Router User Interface Modes eSIM™ supports the commands used in this lab. You may reference eSIM™ to complete the lab, or may be able to complete the lab from studying the online curriculum and Companion Guide textbook. 4.2.4 Router Show Commands This lab assumes that the “Set Configuration” option has been selected for the router you will be using. Additionally, to complete the “Show Startup-Config” command, you will have to copy the running config to NVRAM. The “Show Clock” command actually shows the PC’s clock information, as though it were the router’s clock. This does not directly relate to the “up time” of eSIM™, as shown in the GUI. “Show Hosts” command: the “Set Configuration” option does not add any IP Host entries. This is documented in the Set Configuration screen. Steps 1 – 16 can be completed in eSIM™, with the notes mentioned above. 4.3.5 CDP Neighbors This lab can be completed with either the “Set Configuration” option set, or not. Note that if it has not been set, you will see the name “Router” for the device name. Step 3, the “Show CDP” command does not function in eSIM™, although the “Show CDP Neighbors ” command does. Note that the Cisco switch connected to E0 of Lab_A does not show up at all. 4.4.2 Remote Telnet Access This lab assumes that the “Set Configuration” option has been selected for the router you will be using. Note that eSIM™ does not set IP Host entries, so you will have to do that manually, if you choose to telnet to the “router-name”, as the lab manual suggests. Also note that Telnet in eSIM™ functions differently than a real router. In eSIM™, when you 1-14 Router eSIM™ Student Version 1.1 FAQ Copyright Ó 2001, Cisco Systems, Inc click one of the buttons on the left-hand side of the GUI to select a different router, all Telnet sessions are automatically disconnected. Finally, eSIM™ does not support the “Show Sessions ” command. Steps 1 – 9 can be completed on eSIM™. 4.4.3 ICMP Ping This lab assumes that the “Set Configuration” option has been selected for the router you will be using. For the “Show Hosts” command t