Re: [RRG] Ivip's fix for tunnel o-head, PMTUD & fragmentation problems

[Stephane Bortzmeyer <bortzmeyer@nic.fr>]

On Wed, Oct 17, 2007 at 03:55:21AM +1000,
 Robin Whittle <rw@firstpr.com.au> wrote 
 a message of 63 lines which said:

> I suggest that Traceroute can be made to work for all routers,
> including those in the tunnel, as long as the sending host uses a
> somewhat modified Traceroute program, which is looking for the ICMP
> packets generated by routers in the tunneled part of the path.

Isn't it exactly what RFC 4950 traceroutes do? (An example is NANOG
traceroute, in ftp://ftp.login.com/pub/software/traceroute/, which
does implement RFC 4950 even before it was pubslihed.)

> Am I correct in thinking that the Traceroute program and principles
> of operation are only used for diagnostic purposes?

I believe so, yes.


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