News for hackers. Stuff that matters.

A comment on IP addresses and routing. Parent comment

Re:IP addresses and routing by rashkov on Thursday July 26, 2018 @11:12AM (#17618076)
wait, really? padding with zeros maps to a different IP address than the non-padded version? Is that because a leading zero causes it to be interpreted as an octal number?
[ Parent | on HN ]
Re:IP addresses and routing by iooi on Thursday July 26, 2018 @11:46AM (#17618366)
Yes.

    In [2]: socket.inet_aton('226.000.000.037')
    Out[2]: b'\xe2\x00\x00\x1f'

    In [3]: socket.inet_aton('226.000.000.37')
    Out[3]: b'\xe2\x00\x00%'

    In [4]: socket.inet_ntoa(b'\xe2\x00\x00\x1f')
    Out[4]: '226.0.0.31'

    In [5]: socket.inet_ntoa(b'\xe2\x00\x00%')
    Out[5]: '226.0.0.37'
[ Parent | on HN ]
Re:IP addresses and routing by kiallmacinnes on Thursday July 26, 2018 @12:28PM (#17618701)
Oh, wow.

I.. wow.

No words come to me!

Learn something new everyday!

[ Parent | on HN ]