I was generalizing.....
The purpose of a gateway address is just that, it serves as a gateway for your computers to connect to the Internet, or other computers on your network. Routers on the market are capable of much more than just serving as a gateway to the Internet, I'm intimately familure with this. In your initial post, you said:
This is also the same address that you will use to connect to the internet (or to other networks).
I have to somewhat disagree, unless I'm not getting what you're trying to teach me
While the gateway address does allow you to get to the Internet, no one on the Internet is able to see this address, because of NAT. (for the original poster)In simplest terms, the router takes information from your PC(s), sends it through the gateway, and NAT (Network Address Translation) "hides" your internal IP address from the rest of the world. If you go to a Web site, on both computers, those servers are only going to see one IP address, the IP address that your ISP gives you (either from DHCP, or Static).
I'm not certified, and do not claim to be a Network guru, but I have been around enough to know how to setup routers, and what there functions are. For the purpose of the debate, and this has become off topic, we've given the original poster more than what he asked for, I explained what a gateway was in terms anyone can understand. I just didn't feel that the original poster would gain anything from reading the initial post you made, as it was pretty general also. I don't want a debate, but if you want to PM me, you can- we could learn something from each other