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Cisco Self-Study: Implementing IPv6 Networks (IPV6) by Régis Desmeules

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IPv6 Security

Security within the IPv6 protocol is based on the IPSec protocol. IPSec is available in both IPv4 and IPv6. As described in RFC 2460, a full implementation of IPv6 includes insertions of Authentication Headers (AH) and Encapsulating Security Payload (ESP) extension headers. Having IPSec on any IPv6 node should allow end-to-end security sessions.

For routers with IPv6 support, IPSec can be used in different areas:

  • OSPFv3— The Open Shortest Path First version 3 protocol (OSPFv3) uses AH and ESP extension headers as an authentication mechanism instead of the variety of authentication schemes and procedures defined in OSPFv2.

  • Mobile IPv6— This protocol specification is an IETF draft status proposed to use IPSec for binding update authentication. ...

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