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When I look at a time-to-live exceeded ICMP message (type 11), it contains extra data. what is that data and why does it contain it?

asked 2018-10-21 08:15:08 +0000

anonymous user

Anonymous

The ICMP (type 11) contains additional data like IP and ICMP inside it. Why?

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answered 2018-10-21 08:32:50 +0000

Guy Harris gravatar image

Because an ICMP Time Exceeded message contains "The internet header plus the first 64 bits of the original datagram's data.", as per RFC 792.

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Asked: 2018-10-21 08:15:08 +0000

Seen: 53 times

Last updated: Oct 21