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Multiple DMVPN hubs for resilience?

Is it possible to use more than one hub with a DMVPN WAN design for the purposes of resilience? Failing that, can two IP addresses for the hub be specified on each spoke?

This is only a small network comprised of about 10 spokes with ADSL and a hub with SDSL. The hub is going to be an 1841. Are we likely to run into resource [CPU, RAM] problems on the hub with that number of spokes? If not, how many spokes is an 1841 good for?

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Re: Multiple DMVPN hubs for resilience?

You can use 1841 as a hub with VPN AIM module for the dmvpn config. Following link may help you

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6635/ps6659/prod_white_paper0900aecd8060b477.html

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