question concerning traceroute?

Thu Oct 17 14:43:04 UTC 2002

$author = "Darrell Carley" ;
> 
> 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?

a traceroute shows the outbound route. it's possible for the the probe
packets to follow one path and the returning icmp packets to take another
path. a looking glass in the AS your tracing to is a good way to see what
the return path is...

marty

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And lay down next to me.
Close your eyes, lay down.
'Cos there goes the fear,
Let it go.

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