Internet Protocol Analysis/IPv6/Quiz

1

IPv6 is an -layer protocol for packet-switched internetworking and provides end-to-end datagram transmission across multiple IP networks.

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IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of .

3

IPv6 uses -bit addresses, commonly displayed to users as groups of hexadecimal digits separated by .

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In an IPv6 address, leading zeroes may be removed from any group of hexadecimal digits. Multiple consecutive groups of zeroes may be replaced with .

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The IPv6 subnet size has been standardized by fixing the size of the host identifier portion of an address to bits.

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IPv6 does not implement interoperability features with IPv4, but essentially creates a . Exchanging traffic between the two networks requires special translator .

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Work on IPv6 began by , and was first published in a series of RFCs in .

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Most transport and application-layer protocols need to operate over IPv6.

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Multicasting is part of the base specification in IPv6. IPv6 does not implement traditional IP and does not define .

10

IPv6 hosts can configure themselves automatically when connected to a routed IPv6 network using the via Internet Control Message Protocol version 6 (ICMPv6) router discovery messages.

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IPv6 routers do not perform .

12

Privacy extensions for IPv6 allow the operating system to generate for communication with remote hosts.

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The IPv6 header consists of a fixed portion with minimal functionality required for all packets and may be followed by optional extensions to implement special features. The fixed header requires octets ( bits) and contains .

14

The IPv6 loopback address is .

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Link-local addresses begin with .

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Tunneling may be used to enable IPv4 networks to communicate with IPv6 networks. In tunneling, packets are encapsulated within packets, in effect using as a layer for .

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Teredo is an -site tunneling technique that uses encapsulation and cross Network Address Translation (NAT) nodes.

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Teredo addresses begin with .

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ISATAP is an -site tunneling technique that uses encapsulation. It cross NAT nodes.

20

ISATAP addresses begin with .

21

6to4 is an -site tunneling technique that uses encapsulation. It cross NAT nodes.

22

6to4 addresses begin with and relay through .

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6in4 is a -site tunneling technique that uses encapsulation. It cross NAT nodes.

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6in4 addresses are addresses assigned by the tunnel broker, and therefore create security risks.

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NAT64 is a that allows -only hosts to communicate with -only servers.

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NAT64 server addresses begin with .