[c-nsp] VPN Failover

[Nimal David Sirimanne]

Hi guys,

We have 2 major offices (SITEA,SITEB)running site-2-site VPN connection 
between them. We are now setting up a new DR site (DRSITE) for SITEB

However, our constraint is that SITEB internal network addressing and 
DRSITE internal network addressing has to be exactly the same. If 
internal network addressing for SITEB is 10.10.10.0/24, then internal 
network addressing for DRSITE is also 10.10.10.0/24. As i understand, it 
is not possible to for SITEA to have 2 active vpn links to sites with 
the same internal network addressing.

Is it then possible, if SITEA -- vpn -- SITEB fails, that it will 
failover to SITEA -- vpn -- DRSITE?

Hope i explained that properly. Thanks!

Nimal