>I'm pretty sure if I just declared myself to be a sales partner (idk the term?) of Cisco, IBM, Oracle, etc and just resold their gear, I'd be in hot water legally because my actions would reflect on them.

This is pretty much how local governments buy IT gear. Put out a "I want a router" low volume RFP that the tech companies don't want to bother with, and some local vendor will resell to you. Ideally, they're getting a volume discount and sharing some of it with you at least.

But don't those vendors have to have some sales agreement with Cisco? I'm guessing they don't after reading about it a bit more, but I'm just surprised.

Yes they do. They have a special website and phone line to order goods at a discount (in volume) and to get direct support/return.

Cisco/HP/Oracle/VmWare/Microsoft are all about sales network. Partners take care of the sale and they can take care of the installation on site and the servicing.

I'm sorry to say but B2B sales companies have nothing to do with restaurant delivery at all. It was a really really bad comparison.

There is nothing illegal about purchasing hardware products from those companies and then selling them on to other customers, even without a formal sales agreement in place. This is the first sale doctrine. However software is different and licenses can't necessarily be resold.

And, of course, many hardware products do have software components these days. But, yes, in general you can resell hardware without a formal agreement. You just can't claim to be an authorized partner or reseller given that implies certain training levels, etc.