i'm using IPSec+OSPF. There're the two possible solutions for protocol/transprot using Tunnel Interfaces:
a) GRE/IP with crypto-map, or
b) IPSEC/IP with crypto ipsec profile
What are the advantage/disadvantage using a) or b)...?
My main connection is based on direct Ethernet, but the backup solution depends on an E1 dialer-profile, so it's difficult to use dynamic routing for transport tunnel-source/-destination addresses and avoid from routing these addresse through the tunnel...
IPSec supports the encryption of unicast IP traffic only. Therefore, routing protocols like Enhanced Interior Gateway Routing Protocol (EIGRP) and Open Shortest Path First (OSPF) and non-IP traffic like Internetwork Packet Exchange (IPX) and AppleTalk are unable to be encrypted using IPSec. Encapsulate such traffic in Generic Routing Encapsulation (GRE) before encryption, using a GRE over an IPSec configuration. With GRE over IPSec, traffic will be encapsulated first and then encrypted.
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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...