I have 2 site-to-site VPN's one on a 877 and another on a 1841, they both connect to a Cisco 3015 concentrator. We are thinking of getting a second Cisco concentrator with a different internet pipe or use Windows ISA 2006 server for VPN's. Can these routers have a way of using the usual first connect to the Cisco concentrator, but if that is down then go to the new Concentrator or Windows ISA server to establish a VPN?
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...