RFC 4891:Using IPsec to Secure IPv6-in-IPv4 Tunnel...
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session


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... SPD entries, e.g., "2001:db8:1::/48 <-> 2001:db8: 2::/48". As the IPsec session between two endpoints does not have an interface ...


... tunnel endpoint is not sufficient for establishing an IKE session with the peer. The PAD information (see Section 5.2) also needs to be learned dynamically. Hence, currently, ...



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