In my company we have a WAN network with about 60 DSL lines on remote sites.

I'm looking for a backup UMTS solution in case a DSL line gets down for more than a few hours.
More or less a portable setup that I can install on a failing remote location.

The remote site needs to hold it own ip-addresses, so a VPN tunnel between the main office and the remote site is more or less the only solution.
As I see it now, the only config changes that needs to be done are the networks that need to go through the VPN tunnel and redirect the remote site's network to the RB411 at the main office.

Would a setup with two RB411 (one for the main office and one with a UMTS card for the remote site) a good solution?
And which type of RB411 and UMTS interface cards will be a good choice?

Thanks in advance for your comments, tips and advice.

Elmar

Anyone with some tips and advice?

Would a RB411U with Sierra 8790 UMTS be a good choice for the remote site?
Can a RB411U on the main office handle a few remote UMTS locations via seperate IPsec tunnels?

Elmar