2 ISPs in a Home Network

Hi everyone,
I want to know how it would be possible to set up my home network to work with two ISPs. In my office, our IT person has it set up so that our VoIP phones go over a T1 line while our normal internet usage goes over Comcast cable. However, the computers are daisy chained off of the phones... meaning they are both plugged into the same port in the wall. How is this possible?

At home, I want to use one ISP for my VoIP service and for downloading large files while using the other ISP for basic internet. One of mu ISPs imposed an internet cap, so that's why I want to do this.

I would assume I would have to buy new equipment and reconfigure. Is this possible?
LVL 1
mfranzelAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Gladys KernsCommented:
At your office - your VoIP phones act as tiny little 2-port network switches allowing both the phone and the computer equal access to your core switch which is where the plug in your wall leads from your office.  At your core switch your IT guy has setup two internet gateways.  The VoIP phones access one gateway through the T-1 provider and your computers are configured to access the other gateway through your Cable provider.  This is a reasonably happy configuration if done right.

At home - it will be very difficult to tell your computer 'use this gateway for files over this size' because at it's core your network stack doesn't really "see" the file size you're attempting to download, etc.  There are a couple ways I might do this at home though:

*  write manual routing statements on your home computer for the sites where you might download large files causing them to route through your "non-cap" ISP.  

*  Have two NICs in your computer - each with a configuration for each internet provider.  Manually enable and disable the appropriate NIC as needed.  You could also do this with wires.

If it was my own house, I don't think I would battle it out with two distinct ISPs running at the same time in the same house.  I think I would simply ask one of them for a better plan and cancel the other.  Is your concern for QoS for your home VoIP phones... most modern VoIP phones use a small fraction of the bandwidth available through most home connections these days for your other internet surfing habits.

For example - if your home Comcast cable connection is 3mb-up and 10mb-down, a single high quality VoIP call would probably run you around 128kb/sec... at most 256kb/sec.  So even if you're running 3 simultaneous calls out of your house, you're still only using 0.75mb/sec of your available synchronous 3 and 10mb.

So save yourself some money.  :)
0
mfranzelAuthor Commented:
Thank you for your prompt reply! It is not that I automatically want the computer to select which ISP to use, but rather ME be able to choose..... ie be connected to one network for LAN and one for Internet. Is this possible to do if the computer has two NICs? This will also allow me to have a TOTALLY sperate network for guests/downloads etc and not clog my normal network.
0
Marius GunnerudSenior Systems EngineerCommented:
Your office has switches that distinguishes between voip and data and places voip traffic in one vlan and data traffic in another vlan. you could have this set up at home if you have a managed switch and a business class router. I am most familiar with Cisco devices but I am sure there are other less expensive devices on the market capable of doing this if you are insistent on setting this up.
0
Identify and Prevent Potential Cyber-threats

Become the white hat who helps safeguard our interconnected world. Transform your career future by earning your MS in Cybersecurity. WGU’s MSCSIA degree program was designed in collaboration with national intelligence organizations and IT industry leaders.

mfranzelAuthor Commented:
Would something like this be what I need? Is it hard to set up?

http://www.amazon.com/Cisco-RV042-4-port-100-Router/dp/B0002I7288
0
mfranzelAuthor Commented:
Or, is it just possible to have two networks plugged into a computer and disable internet on one network while only LAN is available?
0
Marius GunnerudSenior Systems EngineerCommented:
It is possible to have two networks connected to a computer and separate the two networks. However, I am not sure if it will do what you are looking to do with the VOIP.

As for the hardware, I believe after thinking about it, you can do what you want with just a 3560 catalyst switch.
0
Marius GunnerudSenior Systems EngineerCommented:
oops for got to add... an 8 port 3560 catalyst switch
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mfranzelAuthor Commented:
Purchased equipment recommended and worked great!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Network Operations

From novice to tech pro — start learning today.