A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2 . What does this code represent?

  • beyond scope of the source address
  • communication with the destination administratively prohibited
  • address unreachable
  • no route to destination
Explanation & Hint:

A ping response with an ICMPv6 code of 2 represents “beyond scope of the source address.” This means that the source address from which the ping was initiated is not valid or recognized in the context of the destination network or address being pinged. It typically indicates that the source address is not within the appropriate scope for communicating with the destination.

 

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A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2 . What does this code represent?

  • port unreachable
  • host unreachable
  • protocol unreachable
  • network unreachable
Answers Explanation & Hints:

When a host or gateway receives a packet that it cannot deliver, it can use an ICMP Destination Unreachable message to notify the source that the destination or service is unreachable. The message will include a code that indicates why the packet could not be delivered. These are some of the Destination Unreachable codes for ICMPv4:

0 : net unreachable
1 : host unreachable
2 : protocol unreachable
3 : port unreachable

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