tracepath reports incorrect values for the return hop count in RHEL6.

Solution Verified - Updated -

Issue

  • tracepath seems to be reporting incorrect values for the return hop count. This can be easily seen by trying tracepath against localhost:
# tracepath 127.0.0.1
 1:  localhost (127.0.0.1)                                  0.079ms pmtu 16436
 1:  localhost (127.0.0.1)                                  0.092ms reached
 1:  localhost (127.0.0.1)                                  0.019ms reached
     Resume: pmtu 16436 hops 1 back 64
  • As seen above back value is indicated as 64, but it should be 1 same as the hops value.

Environment

  • Red Hat Enterprice Linux (RHEL) 6.
  • Iputils packages.

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