I currently pay for a package with Xfinity. I am getting cable & internet into my place (residential).
Recently, I decided to start studying for a CCNA R&S. So I picked up a lab, a Dell poweredge, and a rack from Amazon. I thought, "I would like to put this on a separate network than what my home network is using," so I bought a new modem too (plus a coaxial splitter). I get all my stuff, hook up the modem, decided to test to make sure I was getting internet to it. I wasn't.
A quick search on the internet (with the working modem) shows that
- I need to contact Comcast to get a second account set up (and subsequently, a second modem...)
- I would have a second IP (which I don't care one way or the other)
So the question comes in: What is another way that I would be able to set up what I am trying to achieve?
Idealy, I don't want to "tell" Comcast's modem about this second network (can you even set up such a thing with what they provide?). I would like for it to stay two completely separate networks.
I REALLY don't want to give comcast more money (so a second bill/plan is basically out of the question, unless there is literally, no other way)
The main goal here, is to be able to connect (and learn, obviously) my cisco equipment, connect to the servers on this second network... But still utilize things like my ASA when I practice setting up firewall rules.
To my knowledge, routing everything through the comcast modem would be considered 1 big LAN and firewalls are pretty lax when it comes to lan-to-lan traffic. So my ASA wont work as expected. Correct?
Am I just over thinking all of this?
- Comcast modem - Cisco DPC3941T
- New modem - CM500
- ASA 5505