question concerning traceroute?

Andy Johnson andyjohnson at ij.net
Thu Oct 17 15:00:46 UTC 2002


There used to be an old flag you could set on an ICMP_ECHO request to record the path the echo reply takes back (ping -R or -r?), but apparently its not used much anymore. Probably just as well.. it could only hold ~8 hops..

Andy
  ----- Original Message ----- 
  From: Darrell Carley 
  To: nanog at merit.edu 
  Sent: Thursday, October 17, 2002 10:31 AM
  Subject: question concerning traceroute?


  I am trying to troubleshoot a latency issue for some of our networks, and was wondering about this.Knowing that routing isn't always symmetrical, is it possible for a traceroute to traverse a different reverse path, than the path that it took to get there?  .or will it provide a trace of the path the packet took to reach the destination?  

  According to definition, is should take the same path, but are there any other cases that I should be aware of?

   

  Darrell

   

   

   

   

   
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