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You are here: Home / Cisco Routers / Is router uptime a measure of stability or insecurity ?

Is router uptime a measure of stability or insecurity ?

Written By Harris Andrea

I was reading Cisco Packet Magazine the other day, and noticed a few mails from readers claiming that they have many Cisco routers in their network running continuously for more than 3 years. The continuous long uptime of a router shows stability and reliability of the specific hardware, but on the other hand it reveals also an insecure network.

A router running continuously for many years, means that it has not been upgraded at all. A router which has not been upgraded for more than 3 years, it probably runs IOS versions 12.0 or 12.1 which are full of security vulnerabilities. I would rather have a network with router uptimes of less than a month, but with all latest Cisco IOS security patches, instead of having a network with router uptimes of 3 years and full of security wholes. What do you think ?   

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About Harris Andrea

Harris Andrea is an Engineer with more than two decades of professional experience in the fields of TCP/IP Networks, Information Security and I.T. Over the years he has acquired several professional certifications such as CCNA, CCNP, CEH, ECSA etc.

He is a self-published author of two books ("Cisco ASA Firewall Fundamentals" and "Cisco VPN Configuration Guide") which are available at Amazon and on this website as well.

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