the fact that traceroute works in this case while your python code
doesn't work in this case, suggests there is some at least one scenario
that your code doesn't handle, even though it could.
your refusal to look at the code of traceroute, and instead insisting of
"blaming the middle-man" and fixing the problem at their side, strikes
me as a bad example for your students. as a developer, i will first try
to verify i didn't miss some scenario or use-case, before trying to pass
the blame.
for the sake of your students, please re-consider this approach...
--guy
On 5/19/24 21:46, Shlomo Solomon wrote:
Thanks.
I see your point, but in this case it does not help me for the
following reasons:
1 - my purpose is to teach how to emmulate traceroute using Python and
Scapy, so looking at the "real" traceroute code written in C is not
really relevant.
2 - The fact that Python code that worked until recently stopped
working means that the problem is NOT the code (which has not changed).
3 - The fact that the code works at school and when using a cellphone
Hotspot (Golan Telecom) but NOT when connected to my "regular" ISP (019)
means that the ISP is probably blocking something.
My problem is that I don't know how to explain this to the ISP support
people or ask them to stop blocking whatever they are blocking. They
will certainly not understand.
The "standard" help remedies are boot the computer or reset the router
to default factory settings or some other nonsense. And I don't even
want to think about the fact that the first thing they will say is that
I should change something in the Windows control panel settings -
telling them I'm using Linux is an exercise in futility.
On Sun, 19 May 2024 20:35:36 +0300
guy keren <guy.choo.ke...@gmail.com> wrote:
BTW - ping and the "real" traceroute work fine.
I also looked at router settings, but did not find anything
suspicious.
there is your clue - read the source code of traceroute, and see what
it is doing differently.
--guy
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