Which option is the most likely reason?

An IPv6 network has different MTUs on different segments, if the network is experiencing reliability issues, which option is the most likely reason?
A. ICMPv6 is filtered.
B. The Do Not Fragment bit is marked.
C. HSRPv6 is configured incorrectly.
D. The MTU size is greater than 1470 bytes.

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2 thoughts on “Which option is the most likely reason?

  1. i Agree with Bogo ther is no df Bit in IPv6 MTU discovery ist standart and done by ivmpv6

    so A is correct

  2. A is the correct answer, IPV6 does not support DF bit, so it uses ICMPv6 to perform MTU path discovery, filtering ICMPv6 avoids the MTU path discovery in IPv6

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