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Design solution assistance

I'm looking for some assistance/direction for a solution on my issue.  

 

Topology

Site A (Hub 1) Cisco 2921 with security license

Site B (Hub 2) Cisco 2921 with security license

 

Both sites will have VPN+P2PGRE tunnels to our data center using EIGRP on each 2921.  Site A being the primary path Site B being the backup path for 8 locations routed over MPLS.  These two sites are connected via a 3rd party managed MPLS solution running static routes as well as to the other 8 sites.

 

Problem:

Normally we have both routers installed at the same location.  And we utilize HSRP with STATIC NAT redundancy (printer and terminal connectivity).  We cannot route RFC1918 space into our data center so we are forced to NAT on the Data center connected routers (2921's) using a combination of NAT overload and static NAT for devices that our data center initiates connectivity to.  

 

Solution help

Is there a way to provide NAT redundancy and HSRP failover whilst locations are physically separated by MPLS WAN?  

 

 

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