RFC 4891:Using IPsec to Secure IPv6-in-IPv4 Tunnel...
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... IPsec Security Association (SA) establishment. Section 5 gives the details of Internet Key Exchange (IKE) and IP security ...


... IPv4 )_ |v6-in-v4| | Router | <======( Internet )=====> | Router | | A | (_ _) | B | ...
... IPv4 )_ Tunnel | V4/V6 | ( Internet )<--->| Router |<=======( Internet )=======>| Site B | ...
... ( Internet )<--->| Router |<=======( Internet )=======>| Site B | (_ _) | A | (_ _) '--------' '----' '---------' '----' ...
... | V6/V4 | _( IPv4 )_ | |v6-in-v4| | | Site B |<====( Internet )==========>| Router | | '--------' (_ _) | | A | | ...
... prefix, whereas the destination addresses could be any nodes on the Internet. In this case, an IPsec tunnel mode ...
... receives. This may be quite reasonable for most of the deployment cases, for example, an Internet Service Provider (ISP) allocating a /48 to a customer ...
... IPv4 )_ | V6/V4 | | Host | <======( Internet )=====> | Host | | A | (_ _) | B | ...


... When running IPv6-in-IPv4 tunnels (unsecured) over the Internet, it is possible to "inject" packets into the tunnel by spoofing ...


... Kent, S. and R. Atkinson, "Security Architecture for the Internet Protocol", RFC 2401(-> 4301prop), November 1998. ...
... Harkins, D. and D. Carrel, "The Internet Key Exchange (IKE)", RFC 2409(-> 4306prop), November 1998. ...
... Kent, S. and K. Seo, "Security Architecture for the Internet Protocol", RFC 4301prop, December 2005. ...
... Kaufman, C., "Internet Key Exchange (IKEv2) Protocol", RFC 4306prop, December 2005. ...


... AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND ...
... IETF TRUST AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION ...


... Funding for the RFC Editor function is currently provided by the Internet Society. ...



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