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ACSP - Aruba Certified Switching Professional IPv6 and Tunneling Technologies Questions and Answers Flashcards

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Read the first 6 ACSP - Aruba Certified Switching Professional IPv6 and Tunneling Technologies Questions and Answers flashcards as text

  1. What is the primary purpose of GRE (Generic Routing Encapsulation) tunneling?

    Answer: To encapsulate packets of one protocol inside IP packets for transport across a network

    GRE encapsulates a wide variety of network layer protocols inside IP packets, creating a virtual point-to-point link between two tunnel endpoints.

  2. What is the primary security limitation of GRE tunneling that must be addressed in production deployments?

    Answer: GRE does not provide encryption or authentication natively

    GRE does not provide any encryption or authentication by itself and must be combined with IPsec to secure tunneled traffic in production environments.

  3. Which IPv6 transition technology transports IPv6 packets across an IPv4-only network by encapsulating them in IPv4 headers using protocol number 41?

    Answer: IPv6-in-IPv4 tunneling (6in4)

    IPv6-in-IPv4 tunneling (6in4, protocol 41) encapsulates IPv6 packets within IPv4 headers to carry IPv6 traffic across networks that only support IPv4.

  4. What does a dual-stack deployment mean for network devices during IPv6 migration?

    Answer: Running both IPv4 and IPv6 protocol stacks simultaneously on the same interfaces and devices

    Dual-stack allows network devices to run both IPv4 and IPv6 simultaneously on the same interfaces, enabling gradual IPv6 migration without disrupting existing IPv4 services.

  5. On AOS-CX, what two parameters are minimally required to configure a functional GRE tunnel interface?

    Answer: A tunnel source IP address and a tunnel destination IP address

    A GRE tunnel on AOS-CX requires specifying the tunnel source IP address (local endpoint) and tunnel destination IP address (remote endpoint) to define the outer IP header for encapsulation.

  6. What is the function of NAT64 in an IPv6 transition environment?

    Answer: To allow IPv6-only clients to communicate with IPv4-only servers by translating between address families

    NAT64 translates IPv6 packets to IPv4 and vice versa, enabling IPv6-only clients to access IPv4-only services without requiring dual-stack on the client side.