CCNA Certification Exam Training: Passwords, Cisco Routers, And Network Security

CCNA certification is important, and so is the safety of our network of Cisco routers! & 39; To reflect the importance of network security, your CCNA certification exam is likely to contain a number of questions on different passwords, you can configure a Cisco router. Let& 39;s take a coup d & 39; look at some of these passwords and timing of & 39; implement the previous & 39; s them.
If user is connected to the router properly, you will see a prompt like when you & 39; s sit at the console of router:
R1 con0 is now available
Press BACK started.
R1 >
To Getting into the mode of allowing default all I & 39; n ai qu & 39; typing " activate ".
R1 > enable
R1 how
See l & 39; calls changed? By default, I can now perform all the show and debug commands I want, to say nothing of & 39; enter global configuration mode and make roughly what I want. It just might be a good idea to password-protect mode! We do this with either allow the order or the secret password to enable the command. We must use the password can command first.
R1 (config) dolphins
Now activate the password when I log out and then back to allow mode - or try to - I should be prompted to enter the password & quot ; " dolphins. Let& 39;s see what happens.
R1 > enable
Password:
R1
I was indeed asked to enter a password. Cisco Routers n & 39; not appear asterisks or other characters when you enter a password, in fact, the cursor & 39; n is not yet move.
The problem with the password can command is that password show you in the configuration in plain text, making it easier Quelqu & 39; one to look over your shoulder and note the password for future use, as shown below:
hostname R1

enable passes dolphins
We d & 39; use the services of encryption " password to encrypt the password can, but it will also encrypt the passwords of all others in the Config Cisco router. & 39; That is not necessarily a bad thing! That & 39; the effect of this order on the password, we allow all earlier.
enable password 7110 D1609071A020217
Pretty effective encryption! However, if we want to have the password can automatically encrypted, we can use the command that secret. I will use this command here to save this password for "saints", and note that I am not remove the previous permit password.
R1 (config) allow secret service saints
After removing encryption password & quot , we are left with two passwords allow mode, and they appear in the Cisco router config like this:
enable passes dolphins
enable secret 5 $ 1 $ kJB6 $ fPuVebg7uMnoj5KV4GUKI/
If we have two passwords permit, which must be used to connect to the router? Let the first password, " " dolphins, first & 39;:
R1 > enable
Password:
Password:
When will ask for the password a second time, you know that you cheated the first time ! Let "saints":
R1 > enable
Password:
Password:
R1
When allow both password and enable secret orders are still being & 39; use in a Cisco router, the secret password allowing & l 39; always prevails. "Dolphins" did not get us, but "saints" did. & 39; C is valuable information for both the & 39; CCNA certification exam and networks in the real world, because it & 39; n & 39; are no worse than the feeling of typing a password to a Cisco router fast and then get another password!
This n & 39; is that & 39; a way to pay & 39; s basic Cisco router with security passwords. We will take a look & 39; coup d & 39; other methods in a future review of CCNA training tutorial!
Chris Bryant, CCIE 12933, is the owner of The Bryant Advantage, the home of over 100 courseware free certification exam, including Cisco CCNA certification test prep d & 39; articles. Its exclusive Cisco CCNA guide d & 39; study and training Cisco CCNA is also available!
Visit his blog and sign up for Cisco Certification Central, a daily newspaper & 39; packed with CCNA, Network +, Security +, A +, and & 39; CCNP certification exam practice questions! 7-A free rein, " How To Pass The NACC ", is also available, and you can attend in person or online CCNA boot camp with The Bryant Advantage!



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