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Ok i excuse my laymen terms but just needing some quick help. Currently we have a T1 feeding into a router. this router then feeds to a switch our small office then connects to. however our t1 really sucks and since no one offers any decent service my boss decided to get a couple usb modems from verizon and get a cradlepoint router. so every thing is hooked up. Right now we are all still connected to the t1. My question is there a way to connect to with wifi (cradlepoint) and use its internet connect and still be on the wired switch so that we can all see each other. network drives blah blha and so on. I've tried to just connect directly to both but when i go to speed test my line, thinking i'm on the usb modem lines i'm really just on the t1 line. like i said earlier really sucks. So is this possible or do i just need to disconnect the router from the t1 modem and connect it directly to the cradle point to by pass all of this?

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Are you looking to eliminate the t1 service? –  ErnieTheGeek Jul 24 '12 at 16:50
    
It's time to get rid of that aging T1 and get some modern broadband in there; for instance, the local cable company's business-class connection, Verizon FIOS, etc. Not only will you have a much faster Internet connection, but you'll save a lot of money. –  Michael Hampton Jul 24 '12 at 16:54
    
@Michael Hampton - There are a still lot of great use cases for t1s. Also, he said there arent any good alternatives available in his area. –  ErnieTheGeek Jul 24 '12 at 16:57
    
Just delete the default route that points to the network that has the T1. (This assumes both networks don't use the same LAN IP addresses.) –  David Schwartz Jul 24 '12 at 19:24
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3 Answers

Yes, it's possible, and not all that difficult, but it requires some basic client networking configuration that might be... a bit of a stretch for you.

Basically, what you want to do is use static routes on your client(s) so that all internal traffic (traffic going to an address on you internal subnet) prefers the internal wired switch, and all external traffic (anything not on that subnet) prefers the wifi/cradlepoint... thing.

Not that I think this is a particularly good solution to your issue, but that's the basic approach. Specifics depend on the client OS you're using, which you haven't posted.

And, just so you and your boss know, T1s in general "suck" because they're only 1Mbit total bandwidth, which it much slower than an average home broadband connection. Maybe a better approach would be to get a business class RoadRunner connection, or a 10 meg circuit, or a few T1s bundled together for the office.

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Yes it's possible but check with your IT dept regarding the security of what you're proposing first.

That said, your workstation has a route table that determines which interface to use. Open a command prompt and type route print to see this table. You probably have two default routes (that look like 0.0.0.0 0.0.0.0 X.X.X.X). The wired connection will probably have a lower metric due to its speed.

One way you could accomplish your goal is remove the default gateway on your wired connection and add routes to the networks you need to access locally using the route add command.

For example, you are on the 172.16.1.X/24 network and your default gateway is 172.16.1.1. Perhaps there are some servers on 172.16.2.0/24 that you need to access. Enter the following command.

route add 172.16.2.0 mask 255.255.255.0 172.16.1.1 /p

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it's possible using routing tables, it's not difficult to use it if you know what to do, btw using routing table you can specific to your computer to use an adapter or a specific gateway to access to LAN and the default gateway to browse internet.

BTW if I'm your system security, I get your private way to browse internet and I'll force you to eat it (I'm joking), because it's a big hole in the security! between your computer you can give access to your office lan or just bypass all security system.

IT'S NOT a really good idea to do if you don't really know what you are do!

BTW it's possible to do it...

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