Class D's have 1110 (which add up to 224) being the high order bits. You
may be onto something... but how would you explaining the 239.255.255.255
subnet mask. This is where I drop into the "hu" faze.
Thanks Tim
Phil
----- Original Message -----
From: "Tim" <[EMAIL PROTECTED]>
To: "Circusnuts" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Saturday, February 10, 2001 6:20 PM
Subject: RE: IP Multicast Addressing
> I'm just a little CCNA, I don't know what IP multicasting is,
> but I believe class E networks have 4 higher order bits set to 1,
> ie 240 - which explains why Class D's end at 239.255.255.255
>
> (I think!)
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Circusnuts
> Sent: 10 February 2001 16:43
> To: [EMAIL PROTECTED]
> Subject: IP Multicast Addressing
>
>
> I'm reading through McGraw Hill's BUMS book. Chapter 7 deals with IP =
> Multicast Addressing. I understand that class D addresses are used =
> (high order bits set to 1110), but a statement used in the book confuses =
> me:
>
> IP Multicast addresses start with 224.0.0.0 and end with 239.255.255.255
>
> I'm not real keen on where the 239 came from...
>
> Thanks All !!!
> Phil=20
>
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