Tips For Security In Cisco Routers

by Zachary Schuessler

Cisco is the leader in routing and switching devices, but they aren’t without their problems. Routers need to be secured with several different configurations so as to best ensure a network is not vulnerable to outside attack. How to configure the Cisco router becomes the task, and with what commands is the problem.

The outdated version of the password protection routines is the enable password command. Enable password puts a password on the privileged mode of the Cisco router, although there are some large flaws with this command. First and foremost, the command is stored as clear text, which is a phrase that describes a password stored without encryption.

An updated version of the previous command is “Enable secret,” which Cisco released for using encryption on the passwords. The difference can be seen in the running configuration of the router, most notably where the password is now stored in random letters and numbers instead of showing the actual password. This is an important step in securing a router against prying eyes.

For anyone running an IOS version below 10.3, the enable secret command will not be available. Thus, it is extremely important that all Cisco router users update to the latest IOS if it hasn’t been done so already. By default, newer IOS versions will use enable secret over enable password- which is obviously the better choice in the matter.

In the end, network administrators will receive much benefit from shielding the running configuration of a Cisco router from hackers and other malicious users. Even small bits of help here and there in network security can mean a large difference in how the network maintains itself in the long run, so be sure to upgrade to the latest IOS and make use of the new password command Cisco offers.

In Conclusion

Cisco routers aren’t a safety hazard by any means, but updating to the latest IOS version and taking advantage of newer commands such as “Enable secret” is the best bet in keeping the computer network up and running for months to come without hassle. For further information, consult Cicso articles and other Internet resources to learn how to actually go about the process of using Enable secret.

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