private vs. public IP addresses

[Sina Bahram]

Yes, I didn't mention those because class d is reserved for multicast and
class E is listed as experimental, but thanks for bringing them up, because
now we've covered the entire range of IP's in ip4.

The class E addresses only go until 254.255.255.255; however, because
255.0.0.0 is blocked off, and as already mentioned: 255.255.255.255 is
broadcast.

Take care,
Sina

-----Original Message-----
From: speakup-bounces at braille.uwo.ca [mailto:speakup-bounces at braille.uwo.ca]
On Behalf Of Travis Siegel
Sent: Friday, July 14, 2006 12:37 PM
To: Speakup is a screen review system for Linux.
Subject: Re: private vs. public IP addresses

There are actually 5 classes of ips.  Class a, b, and c are the ones used on
the internet as a whole, and those ips have already been mentioned here.
Class D has a 224.something range of ips that are considered private as
well.  However, this is hardly a consideration, since class D addresses are
used strictly for multicasting purposes, and it's likely you'll never need
one.
Then, there's class E addresses.  These start at 240, and there is one of
these reserved for private use too, though again, I don't know what it is.
Class E addresses are for experimental purposes, and are also generally
multicast addresses.  Again, you'll probably never see one  
of these ips on any network, and especially not on the internet.   
But, they are there, and are used occasionally, even if we don't encounter
them.

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