GRE over IPSec tunnel between two routers having overlapped subnets
I wish to create a GRE over IPsec tunnel between two routers which have overlapping subnets in their respective LANs. Please let me know if that would be OK to implement and will work. I understand there are some problems with NAT related to encrypted traffic and we can use IPSec tunnel (not GRE over IPsec) in this scenario. I want to make sure whether GRe over IPsec would work too.
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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...