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Monthly Archives: October 2010
Upgrading Redundant Supervisors on 6500′s
I need to know how to upgrade the IOS on CISCO 6500′s, So here is the outline along with a download of the official PDF from CISCO. First confirm what IOS image is running, which supervisor is running as active and the redundancy mode … Continue reading
Spanning Tree
Here is a nice Flash animation explaing the basic operation of Spanning tree spanning_tree1 DevilWAH Download article as PDF
CCNP ROUTE (Part 9 EIGRP Authentication)
Seeing as we just finished up a simple EIGRP lab, it seems a good opportunity to add one more simple thing in to the mix. At the moment any one could in theory add a router in to the network, … Continue reading
Removing old keys from the SSH known host file
When connecting to a device via SSH using Linux (Unbuntu), you may come across the following error message. The fingerprint for the RSA key sent by the remote host is fd:1f:3d:fb:2e:ad:f4:f4:35:2e:03:f4:xx:xx:xx:xx. Please contact your system administrator. Add correct host key … Continue reading
CISCO commands
Just lately while cleaning up things at work, and on the web I have come across some CISCO commands that are usefully but often over looked, or forgotten. So I thought I would write them up here and attach them … Continue reading
CCNP SWITCH (retake)
Well one more update. I have just checked my email and it seems that CISCO have responded to my comments about the SWITCH exam, and provided me with a re-sit voucher! I think this says something about the quality of this exam as this is the … Continue reading
Applying a configuration to a CISCO device using xmodem.
Last week at work now, so been rushing to get things sorted out. I have still been doing a bit of study and planing some more ROUTE posts, but with a broken down car and house sale looking like its falling … Continue reading
New Job,
Well the reason I haven’t been posting as much, and have moved the blog to an on-line host. Is that in a few weeks I will be starting a new role working for Dimension Data. Seems like the hard work … Continue reading
Tagging the Oceans
As a young boy I was fascinated by wildlife and had piles of videos that I would watch over and over. I always believed I would end up as a wildlife researcher tracking cheaters across the plains with a faithful … Continue reading
Opps,
I think I may have got a bit trigger happy and deleted some genuine comments! If so I do apologise and hope people will resubmit them. On a good note, I have found out that at my new job they … Continue reading →