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Lectures notes for 2010 - KTH

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IPv6 features<br />

• Expanded Addressing Capabilities<br />

• 128 bit address length<br />

• supports more levels of hierarchy<br />

• improved multicast routing by using a scope field<br />

• new cluster addresses to identify topological regions<br />

• Header Format Simplification<br />

• some IPv4 fields have been dropped, some made optional<br />

• header is easier to compute<br />

• Improved Support <strong>for</strong> Extensions and Options<br />

• more efficient <strong>for</strong> <strong>for</strong>warding of packets<br />

• less stringent limits to length of options<br />

• greater flexibility <strong>for</strong> introduction of future options<br />

• Flow Labeling Capability<br />

• labeling of packets belonging to a particular “flow”<br />

• allows special handling of, e.g., real-time, packets<br />

• Authentication and Privacy Capabilities<br />

• Extensions to support authentication, data integrity, and (optional) data confidentiality<br />

Maguire IPv6 features 10: 8 of 54<br />

maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik

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