On Wed, Feb 21, 2007 at 06:18:10PM -0800, Tracy R Reed wrote: > John Oliver wrote: > >I remember when I was completely mystified by subnetting. IIRC, what > >tipped me over the edge and made it the most obvious thing in the > >world was "Teach Yourself TCP/IP in 24 Hours" by SAMS Publishing, I > >think it was. > > I think subnetting might be more easily understood if we did not > represent IP's in decimal. Not representing them in hex (like ipv6) > turned out to be a big mistake. Not only is it harder to understand > the relationship between our base 10 IP's and base 2 netmasks (which > we also tend to represent in base 10) but have you seen the regex for > validating that an IP is a valid IP? What a mess.
I'm a sucker for ugly regular expressions. Please share. -- Chris Grau
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