I have a dedicated server that I would like to use ESXi 5 on. I previously had Xen and it worked great. Initial network configuration was a bit confusing. The problem I have is the hosting company has MAC filtering on, so basically I need to configure some kind of routed mode. This would mean that each VM routes traffic through ESXi instead of broadcasting on the network.
I'm having a hard time understanding how a governing body assigns IP addresses, companies use BGP to advertise those IPs, and how the internet works. Then, where the hell does DNS come in?
Can anyone suggest a good read of how this stuff actually works? I suppose I have several questions. The first is, does ARIN (or any other governing body) actually matter? If they weren't around, would there be chaos? When they assign a block, they don't LITERALLY assign it? You have to use BGP to advertise, correct? I have always been used to a closed hosting environment (dedicated/shared) where you have routed IPs.
Then, how does DNS come in to play? With my registrar I am able to register a DNS server (eNom) - what does that actually mean? I've installed Bind and made all of that work, and I run my own DNS servers, but who are they registering that DNS server with? I just don't get it.
I feel like this is something I should know and I don't, and I'm getting really frustrated. It's like.. simple.. how does the internet work? From assigning IPs, to companies routing them, and DNS.
I guess I have an example - I have this IP space let's say 158.124.0.0/16 (example). The company has 158.124.0.0/17 internet facing. (First of all, why do companies get blocks of IPs assigned and then not use them? Why don't they use use reserved internal space 10.x and 192.x?). So, that's where I'm at. What would I do to actually get these IPs on the Internet and available? Let's say I have a data center in Chicago and one in New York. I'm not able to upload a picture, but I can link one here: http://begolli.com/wp-content/gallery/tech/internetworkings.png
I'm just trying to understand how from when the IP block is assigned, to a company using BGP (attaining a public AS #?), and then how DNS comes in to play?
What would something look like from my picture? I've tried to put together a scenario, not sure if I did a good job.