those are not ios files. it depends on what router you are using, the imagine files are different. For example, it should start with the router name like c2620 something, and end with .bin extension. You don't need a win2k PC, all you need is a pc that works (win9x;win2k; dos or unix), connect the PC serial with the console cable to the router. you need to use the xmodem command to download image to the router. you need to download the image (if you don't already have one) from the cisco website under software.
Sunny has right you must need first the IOS images but if you want to use TFTP you must be shure that your router don't have some access-list restriction in it configuration file. try to remove all the access-list from the router config file and after try to issue the tftp copy flash but beaware for use tftp you MUST have a IOS image on your router. In case you haven't you must use the method specified by Sunny.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
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In this session you can learn more about Layer 3 multicast and the best
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