IPv4 Checksum calculation in ICMP Error

Unanswered Question
Apr 20th, 2007
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I am sending a IPv4 message with TTL value of 0

from a Router 1 to Router 2 will loose source and record route option containing the Router 3

in its Route data area list . Router 1 is connected to Router 2 which is connected to Router 3.


Router 2 gives a ICMP Error message with IPv4 Checksum in the padded IP header recomputed as

the Loose source and record route information is processed. Is this checksum recalculation acceptable?.



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