This is commonly used in out of band management for single devices however when there are multiple devices per site and out of band management is required its common to have an access-server setup with a modem to allow console management of multiple devices through a single dial-in device. The AUX port is very similar to the console port but has modem control pins where you can attach an external modem to the device and dial-in to the device via external 56k modem and remote manage the device using POTS dial-up service. The last objective only applies to Cisco devices that have an Auxiliary (AUX) port.
CCNA NETWORK VISUALIZER SETUP ROUTER VIA COMMAND LINE PASSWORD
If you typed in the enable password first you’ll be rejected as the router also has an enable secret set of Cisco2. Once the enable passwords have been set verify the configuration by executing a reverse telnet to 10.1.1.1 and establishing a telnet session using the previously set vty lines password then escalate to privileged level access. The enable password and enable secret are used for the same authentication, which is to gain access to privileged mode however if you have both enable password and enable secret set, the enable secret will override the enable password. End with CNTL/Z.Īs shown above the enable password was set to Cisco1 and the enable secret was set to Cisco2 To configure an enable secret you simply execute the enable secret passwordgoeshere as shown below Įnter configuration commands, one per line. To configure an enable password execute the enable password passwordgoeshere command. If you still have a telnet session open from the previous objective verification, type exit. This configuration is done in global configuration mode. Configure an enable password and secret for the Cisco router to gain privileged level access to the device via telnet. You’ll immediately notice that you’ll be prompted for an “enable” password in which case none is set so therefore you cannot gain privileged level access. Once you’ve established a telnet session to the router, try to gain privileged level access. If you enter the console line password, you will be denied access but upon entering the correct vty line password you’ll be authorized to start an exec session as shown above. To verify your vty line password configuration you can telnet to your local interface to initiate a telnet exec session as shown below Īs you can see you’re prompted for the VTY line password. For example assign 10.1.1.1 255.255.255.255 to interface loopback0 as shown below In order to verify this configuration typically you’d need Ethernet connectivity to the device so as per that requirement you’ll need to assign an IP address to an interface. Notice that in this example the password was set to Cisco321 just to demonstrate you can have different passwords per line. You apply the password to these lines in the same manner as you previously did the console line as shown below The VTY lines are virtual lines used for establishing an exec session via telnet or ssh. Now its time to configure VTY (Virtual TeleType) lines. Now you can test your console line password but first you’ll have to end your exec session by typing end and exit then attempting to establish a new exec session via console as shown below This is done by executing the login command from line configuration mode as shown below You’ll need to tell the router to prompt incoming sessions on the console line to require a password. Simply setting the password does not enable password authentication. Once in console line configuration mode, you can set the password by executing the password passwordgoeshere As shown below, the password is being set to Cisco123 Would you like to enter the initial configuration dialog? : no – To meet the first objective of protecting the console line with a console password you’ll need to navigate to the console line configuration mode as shown below
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