funsec mailing list archives

Re: *groan*


From: der Mouse <mouse () rodents montreal qc ca>
Date: Thu, 26 Oct 2006 17:45:19 -0400 (EDT)

OK, I'm thinking it's a subnet mask, and the significance of 255 is
easy to figure.  240 and 252 less so, but at least they are within
range.  But 257?
I have encountered many people who don't believe in non-contiguous
subnet masks.

Believe in them?!  I've *seen* them!

(Actually, for a while I was using a netmask of 0xffffffd8 for my house
LAN.  One of the things I dislike about IPv6 is the desupport for
noncontiguous netmasks - I can understand it, but I don't like it.)

To be fair, a number of OSes don't support them anymore.

Eww!  My reaction, were I ever to run into that, would be the same as
to any other bug in the network stack....

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