SSH Protocol Support



Overview 


The Network Simulator supports SSH protocol for the CLI devices in the device tree of the network simulator. You can also create your own CLI devices with SSH support. The ssh devices can be created with both IPv4 and Ipv6 addresses. It enables execution of ssh commands on the simulated devices, from command line. To communicate with the simulated devices through ssh, you must log in to ssh by entering a valid user name and password (root, public are username, password used by default).


Starting SSH

  1. Create a new network using the Linux template devices. To create a new network, refer to Network Simulator Guide ->  Creating a New Network. (or) Define your own CLI devices in the device tree. Create a new network using the template devices. To create a new network, refer to Network Simulator Guide -> Creating a New Network.The Network Simulator supports dynamic configuration of virtual ip addresses in Windows XP/Vista and Linux OS. The IPv6 addresses can be configured dynamically in Windows XP+SP2/Vista and Linux OS.

  2.  Right-click on the device in the network area and select the option SSH -> Start. This will automatically start the agent with the given IPv4/IPv6 address and at default port 2222.


Logging into IOS Devices

  1. To establish a SSH connection with the agent, go to command prompt and type:  c:\> ssh -p <port number> -l <user name> <ip address>.  Type the user name and password as root and public respectively.

           

            password
            Enter password for root
            Password:

            -----------------------------------------                                                                                                                                                                                                                                                                                 

            WebNMS SSH Simulator

            WebNMS Simulation ToolKit
            2016 ZOHO Corp. All Rights Reserved.

            http://www.zohocorp.com
            -----------------------------------------

       


       This is called User Exec Mode. The prompt cisco760066>  displays the name of the device starte.
       Type ? to list the commands that can be executed in this mode.

      cisco760066> ?

        enable              Turn on Privileged commands
        exit                  Exit from the exec mode
        help                 Help command
        logout              Exit from exec mode
        show                Show Command
   

    2. To set up Passwords for your Router you need to first enter what is called: Privileged Exec Mode. To enter Privileged Exec Mode type in the word enable at the prompt.



cisco7600>enable                                                                                                                                                                                                                                                                                                                    



     3. Specify the password. The default password is test. This changes the prompt from Cisco760066> to Cisco760066# , as shown below:


cisco760066>enable

Password : ****                                                                                                                                                                                                                                                                                                                      

cisco760066#

    

     The # means that you have entered Privileged Exec Mode, also called "Enable Mode" for short. If you want to go back to being a plain User, just type disable . Type ? to list the commands that can be executed in this mode.
   
       4. To get from Enable Mode to Configuration Mode, type the word configure terminal as shown below:



cisco760066#configure terminal                                                                                                                                                                                                                                                                                                  

                                                                                                                                                                                                                                                              


        5. The prompt will appear as shown below, which means that you are in the Router (Configure) mode. Now and only now can you start the process of configuring the router. Configure is a Global Command. Type ? to list the commands that can be executed in this mode.



cisco760066(config)#                                                                                                                                                                                                                                                                                                                 



For example, you can configure your own hostname by specifying the following command. Note that the prompt changes to Router(config)# 



cisco760066(config)#hostname router                                                                                                                                                                                                                                                                                       

router(config)#



         6. To get from Configuration Mode to configif mode (interface mode),  type the word interface as shown below, specify the interface name and number.



router(config)#interface ethernet 0                                                                                                                                                                                                                                                                                             


          7. The prompt will appear as shown below, which means that you are in the Router (config-if) mode. Now you can start the process of configuring the router interface commands. Type ? to list the commands that can be executed in this mode, as shown below. Type exit to go back to the previous mode.



router(config-if)#?

cdp                   To enable CDP

exit                  To Exit from this mode

help                 

ip                    To configure IP MTU value                                                                                                                                                                                                                                                                                      

no                    To disable CDP


router(config-if)#






Commands Supported

Refer to the topic,
IOS Commnands Supported, to learn about the suppported IOS commnads in CLI devices.

Copyright © 2012, ZOHO Corp. All Rights Reserved.
Network Monitoring Software from ManageEngine
Copyright © 2012, ZOHO Corp. All Rights Reserved.
Network Monitoring Software from ManageEngine