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2 different 3G sticks together.

Posted on 2010-11-24
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Last Modified: 2012-08-13
I have a query about using two different 3G cards/usb sticks in conjunction with each other. They will have different ISP on the sticks, basically I am wondering if there is a way to have them BOTH connected up to the laptop at the same time so that which every one has the best coverage it uses to connect to the internet, and as one comes into better signal than the other that one will take over.
The reason for this is traveling around the country and needing the most up time we can get with out having to change USB sticks over when one doesn't get great strength.

I was thinking is there any way of having them both run on separate 3G routers and some how bridging them or something similar? Or is there a product out there that can host more than one 3G USB/wifi card.

Thanks heaps.
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Question by:ComPro-IT
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yarwell earned 250 total points
ID: 34213500
I think you would need a device or software application designed for the purpose to automatically change over.

Two routers can be on one LAN and you can switch between them by changing default gateway, but again to do it automatically would be a bit bespoke. Obviously the routers have to have different IPs on the LAN side.

I suspect you might have driver / software issues plugging two dongles into a single machine, unless they were from different hardware vendors with different software applications controlling them. If you didn't you still need to find a way of switching the default route so your traffic follows the signal.
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by:ComPro-IT
ID: 34214083
Hey Yarwell,

Would you know of any software that is designed for this - or could anyone point one out if people have had experience in this?

Yea I agree with you on that - probably easiest at this stage to have the two routers on the single LAN then perhaps write some sort of script that will change the gateway when needed.
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by:yarwell
ID: 34217291
Would you know of any software that is designed for this

'fraid not, haven't seen anything. The hard bit would be getting the signal strength on which to decide to switch.

A "foreign" SIM that roamed networks would be another angle, but then you're into roaming charges and all that stuff.

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Author Closing Comment

by:ComPro-IT
ID: 34253925
Accepted as solution - not a lot else out there looks like a program may need to be set up or just adjust gateways as stated
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