Category Archives: Cisco

frame relay switch – create a config

Posted on 17. February 2012 by crissa

Hello, for my new frame relay switch I was looking for a full mesh configuration. With this I could create different logical connections between the routers using frame relay just by changing the configuration. My new frame relay switch is … Continue reading →

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sispmctl – control a terminal server

Posted on 11. February 2012 by crissa

Hello, a terminal server is very useful in a Cisco lab. To be usefull it should be up and running, but keep it switched on 24/7 is not an option in a home lab. With a Gembird SIS-PM programmable power … Continue reading →

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Hide a Token Ring router

Posted on 1. February 2012 by crissa

Hello, my current frame relay switch is a Token Ring router (see My current lab ). Once a frame relay switch is configured there is no need to reach it any more. But what about messages on the main syslog … Continue reading →

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My current lab

Posted on 18. January 2012 by crissa

Hello, my current Cisco lab. On the left two 1712 routers and on the right from the top: A 2520 router, a 2511 terminal server, two 2950 switches and a 3548 switch. The 2520 is the latest addition to the … Continue reading →

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Using the AUX port to connect two routers

Posted on 15. January 2012 by crissa

Hello, the AUX port on a Cisco router is seldom used, but it can be useful as an extra connection between two routers in a lab environment. For this example I used two Cisco 2516 router. The first step is … Continue reading →

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%cdp-4-duplex_mismatch

Posted on 13. January 2012 by crissa

Hello, when you use older Cisco routers together with more update routers in the same ethernet network and you are using CDP (Cisco Discovery Protocol) you maybe familiar with the following message. 000042: Jan 13 21:22:23.001: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered … Continue reading →

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Is There Anybody Out There?

Posted on 2. January 2011 by crissa

Hello, while searching for a way to get the information if there is still someone connected to a Cisco router (without connecting myself) I found How To Get Information About Users Connected To The TTY By Using SNMP . I … Continue reading →

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