Computer networksLesson 1 of 2 in the course Network layer and routing

IPv6 Addressing, Packet Structure, Configuration, and Coexistence

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

This lesson explains what IPv6 is, why it was created, and how its goals relate to the growth of the Internet.

The Internet Protocol (IP) provides an addressing and routing system for devices on interconnected networks. An IP address identifies a device and helps networks deliver packets toward its location. IP works at the Internet layer and supports end-to-end datagram transmission across multiple networks.

All flashcards

IPv6 address compression
Leading zeros may be removed from any group, and one consecutive run of zero groups may be replaced with ::.
IPv6 Next Header field
A fixed-header field that identifies the following extension header or upper-layer protocol.
IPv6 link-local address
An address for communication on the local link, commonly drawn from the fe80::/10 range.
Stateless Address Autoconfiguration (SLAAC)
A method that lets a host configure an address using a locally generated identifier and a router-advertised prefix.
NAT64
A transition mechanism that can let IPv6-only clients reach IPv4 services by translating between protocols.

Quiz questions

  1. How may a consecutive run of zero groups be represented in an IPv6 address?Answer: By using :: once in the address.
  2. Which device is responsible for fragmenting an IPv6 packet when fragmentation is needed?Answer: The sending host.
  3. Which DNS record type maps a hostname to an IPv6 address?Answer: An AAAA record.
  4. What does dual stack enable a networked device to do?Answer: Use both IPv4 and IPv6 protocol stacks.
  5. What is an IPv6 shadow network security risk?Answer: IPv6 traffic may bypass controls that are configured only for IPv4.

Based on the Wikipedia article IPv6, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

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