IP packets get fragmented when the ICMP payload size matches with the MTU
Issue
-
Network monitoring, e.g.
tcpdump
, shows packet fragmentation when theICMP
payload packet size matches with the configuredMTU
. -
If the
MTU
is set to 1500, fragmentation is monitored when:IPv4
is used and the packet size forping
is set higher than 1472.IPv6
is used and the packet size forping
is set higher than 1452.
Environment
- Red Hat Enterprise Linux (RHEL)
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