Redirecting Cisco Show Command Output

Have you ever issued a diagnostic command on a Cisco device and wish you could keep the output to review off line at a later time? There actually is a way to do this! (without copying and pasting, etc). I recently was asked to send the results of “show tech-support” to Cisco’s TAC to get help with an issue. To my dismay the result of this command overran the length of the terminal window’s buffer. Rather than changing things on my side I knew this was the opportunity I needed to make my life easier. To send output directly you … Continue reading

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Authenticating APC Network Management Cards with Network Policy Server

Working in a large environment with 100% power availability as a requirement I have had the experience of working with many APC UPS systems.  We typically monitor the UPS remotely and from time to time have to log in to check statuses or review errors.  Our environment frowns upon shared credentials as do I so authentication to these systems had to be updated.  I knew we had options because I had seen RADIUS authentication listed in the specifications for the management card. Initially I created a fairly vanilla policy and was able to log into the APC’s.  The issue, however, … Continue reading

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SSH Tunneling and Proxying

Today I want to talk about the flexibility, security, and convenience of using SSH Tunneling and Proxying to connect to your remote network devices. The SSH tunnel will act as a VPN of sorts to get us inside the network where remote access is otherwise not available. These examples will also wrap the traffic in a layer of security since all SSH tunnel traffic is encrypted. To get started let’s have a look at the diagram below: The laptop is our remote user and the network on the right is the network with some devices that we could like to … Continue reading

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Cisco Wireless AP LED Commands

In the networking realm of things I typically get to play with new and sophisticated technology. Sometimes, however, even the most sophisticated technology requires some really simple changes for some really simple reasons. For example. the other day I was approached about disabling the LEDs on our Cisco access points. Since I was working in the healthcare world at the time it made sense that a request would come through about this particularly since many patient rooms had APs mounted in them. After some quick looking around online I found the answer: Log into the controller and issue the following … Continue reading

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