I just bought some used lab equipment: 3 2811's, 2 2950's, and 1 3550.Strange thing is that right after this online purchase, I have had multiple credit card charge attempts for several thousand dollars. The credit card company immediately blocked it...

I just received my lab equipment. I'll admit that I'm completely new to this. I bought the equipment so I'll be ready to use it when I'm studying. I have 3 2811's, 2 2950's, and a 3550. I installed them in a rack already. Is there anything I can do t...

Hello I am about to purchase 3 2811 routers and 3 3560 switches, but I cannot figure out how I will update them to the newest 15.1 IOS. I am buying them used and I believe they have 12.4 on them, but I'm not totally sure. How can I put 15.1 on them w...