We have an office opening, and we aren't going to have comms into the building when management want the building to open.
Our only option (I think) Is to try and hook up a 3/4g dongle to something to act as the access point, and send all the traffic via that. The model of router we use wont support the usb dongle, so we need some sort of 'bridge'
My idea was to build a Linux box, plug the dongle into that and then via the Ethernet ports plug the router in.
We need the Cisco router in the equation as we create VPN connections over that back to head office. My question is will this work?
www.cradlepoint.com
Snag one of those devices - seems to be the most widely deployed solution that I've seen for your use case.
http://www.cradlepoint.com/products/branch-office-retail-pos/cba750b-mobile-3g-4g-broadband-adapter
We never ended up using this, we just setup ICS on one pc, installed client vpn on the others and used that as the access point. Not ideal but it worked short term