So I have been working in a new position where I have a contractor that has set up the company's network and now I have been given the job of taking over everything that they have done over the past year and a half or so. The main contact is a little resentful of me coming into his area even though I have been told to find out everything that I can from the person and that they are going to be worked down to the very basics with the exception of a major break down of the system. This past week I enabled SNMP on all of the routers and reinstalled new UPS backups on the servers. On Monday morning I came into a system that was down because one of the main routers was not working. I went though everything that I knew and then was forced to call the contractor. He tried to communicate with the router VIA the console cable and an ether net cable but was unable to talk to it. After about an hour he made the clam that the changes that I did brought down the systems and the router would have to be replaced. So my question is. How is it that a simple change on a router and cause it to go down and be turned into a brick? I don't think that this is the case and believe that it was related to the fact that we had some power issues over the weekend and the router was fried by that instead. How can enabling SNMP knock a router down so hard that you can talk to it using ANY method? If I made a mistake and changed a setting in the config file can one not just install backup and build from it? How can a mistake "If their was one" make the router not work at all. We have since install a new router under warrinty. But this was a topic that kinda bothered me a little.
Thanks for any advise