Building your Cisco cert lab – if you’re figuring it out for yourself – requires a lot of lateral thinking. You can start by looking at the more inexpensive ...

In a recent security alert, Cisco Systems warned that the Cisco IOS is vulnerable to a malicious attack (see Cisco warns of critical IOS flaws). By exploiting this vulnerability, a hacker could ...

Cisco has disclosed over a dozen high-severity vulnerabilities affecting the widely deployed Cisco IOS and IOS XE network automation software, including a nasty one affecting its industrial routers ...

Cisco’s IOS XE software for SD-WAN routers has a high-severity insufficient input validation flaw. Cisco has patched a high-severity vulnerability in its router software, which if exploited could ...

Automatic Signature Extraction (ASE) is a new feature in IOS release 12.4(15)T1 that is designed to find and stop worms and viruses on the network, day zero. To quote from one of the ASE developers ...

Cisco has addressed a zero-day vulnerability in its IOS XR router software that allowed unauthenticated attackers to remotely access Redis instances running in NOSi Docker containers. The IOS XR ...

Cisco Systems released firmware updates for several routers and switches that run its IOS and IOS XE software in order to fix flaws in their autonomic networking infrastructure (ANI) feature. ANI is ...

You're going to hear quite a lot of opinions on this. Here's mine. Buy a good book; I'd recommned the CCNA Study Guide from Sybex written by Todd Lammle. Buy a low end Cisco router like a 1700 or 2500 ...

Most IT pros realize that using Telnet to manage routers, switches, and firewalls is insecure. Transmitted in clear text across a network, Telnet traffic basically publicizes any login usernames and ...