nanog mailing list archives

Re: Short-circuited traceroutes on FIOS


From: "Valdis Klētnieks" <valdis.kletnieks () vt edu>
Date: Wed, 11 Dec 2019 18:47:45 -0500

On Wed, 11 Dec 2019 19:26:09 +0200, Saku Ytti said:
On Wed, 11 Dec 2019 at 19:14, Rob Foehl <rwf () loonybin net> wrote:

Support claims that it was a mistake, but it's also been 15+ months and
it's pretty deliberate behavior.  Draw your own conclusions...

TTL decrement issues are fairly common across multiple vendors and hw,
can be sw can be hw limit

Yes, but you need to screw up gloriously on the decrement if you think that
"I decremented and it's zero now" means "therefor it must have been addressed
to me, so I'll send an ECHO REPLY instead of TTL EXCEEDED".

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