Re: schein.debian.org
Henrique de Moraes Holschuh <hmh@debian.org> writes:
> The patch would work, but this is the wrong fix, IMO. Instead, upstream
> should change that crap to report the value of "rethops" in the first place,
> and let the human do the guesswork...
I agree with you in principle; guessing is wrong...
BUT, you have to guess this value for the intermediate hops if you want
the nice "asymm" feature. And that is IMHO very useful. I would
certainly not want to calculate that for each and every hop myself.
- the guesses are accurate in almost all cases.
- you cannot guess any better yourself, since you would have to apply
exactly the same logic if you were to.
- the raw TTL values are completely useless information unless you do guess
the initial TTL.
- it's been like this for ages, and anyone making a device sending icmp
error messages would know.
- if you guess intermediate hops, then you might as well make the final
guess, too.
Even so, maybe it should be more obvious to the common user that the
application is guessing? E.g. by adding an option to turn off the
guessing, or to print raw TTL values in addition to the guessed hop
count? Not that I think either would be useful as anything else than
documentation.
Bjørn
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