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Exam 300-101 Question id=396 Network Principles

Which method allows IPv4 and IPv6 to work together without requiring both to be used for a single connection during the migration process?

A. dual-stack method
B. 6to4 tunneling
C. GRE tunneling
D. NAT-PT
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Dual stack means that devices are able to run IPv4 and IPv6 in parallel. It allows hosts to simultaneously reach IPv4 and IPv6 content, so it offers a very flexible coexistence strategy. For sessions that support IPv6, IPv6 is used on a dual stack endpoint. If both endpoints support Ipv4 only, then IPv4 is used.
Benefits:

  • Native dual stack does not require any tunneling mechanisms on internal networks
  • Both IPv4 and IPv6 run independent of each other
  • Dual stack supports gradual migration of endpoints, networks, and applications.
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