I am not a network guy, but rather a general IT guru that knows just a small bit about networking in general (enough to get myself in trouble!).
My business has been growing over the last several years, and as it has grown my need for IP addresses has grown with it. As a result, I now have a total of 5 network drops that go to my various servers. For the sake of this question, lets just call them Drop1 - Drop5. Each Drop gives the server its plugged in to access to a single network subnet - some of my subnets are quite small, being the oldest (/224), but I also have 2 /128s and 1 /0
Now, My /0 is currently restricted to a single physical server owing to the fact that all 4 NICs on the other servers are being used. The smallest network also goes to a single server and is not really needed anywhere else. In my current environment this is ok, but I am about to expand my business yet again and move all my physical servers to Hyper-V Hosts and create a single private cloud where VMs can essentially move from one box to another as needed for our requirements... That means that I will need to have all of my network drops available on all my servers at the same time, and I am looking for ways to get out of buying additional NICs (and of course paying the higher per month fees from the datacenter for additional drops)
Now, as I said I am not a network guru... but it sure seems to me that even tho I have multiple subnets, it should be possible get all of them on a single network drop via CAT6 somehow.
I asked my datacenter this question about a year ago, and I was not happy with their answer... it was essentially "no". I suspect I talked to a guy that did not know what he was talking about and instead of forwarding the request on, he just gave me a bunch of BS lol.
So - there is my question. Is it possible to have multiple subnets delivered to a single server with a single CAT6 cable in such a way as to make all those subnets available to both the host OS and any VMs residing on Hyper-V on that box?
Is there a hardware option to simplify the process if the datacenter is unable or unwilling to perform whatever is needed to make this happen? Such as a device that allows X number of network connections coming in, then a single gigabit connection outbound to each of my servers from there?
Now, I also already have a private LAN connecting each of my servers (which of course takes up another of the NICs for each server). This will remain as I use it for secure server to server traffic.
I have heard of VLAN, but after reading an intro I am not sure if that will help me or not... ?
Any kick in the right direction here is greatly appreciated!