Hi,

Because it's a class D address and Class D addresses are used for
multicasting.

Cheers,

J-M

-----Original Message-----
From: Hunt [mailto:[EMAIL PROTECTED]]
Sent: 18 December 2000 01:03
To: [EMAIL PROTECTED]
Subject: Re: 224.0.0.1 and 255.255.255.255


Just by looking at the IP 224.0.0.1, how can you tell straight away that it
is a
multicast address?

Hunt


Chuck Larrieu wrote:

> 255.255.255.255 will not be passed by a router. it remains on a local
> segment. All hosts will act upon that address, using CPU time to pass the
> packets up the stack.
>
> 224.0.0.1 is the all systems  multicast group. Only those devices which
are
> members of the particular multicast group will take packets for that
address
> and pass them up the stack for action.
>
> Chuck
>
> -----Original Message-----
> From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> kenny
> Sent:   Monday, December 18, 2000 12:42 AM
> To:     [EMAIL PROTECTED]
> Subject:        224.0.0.1 and 255.255.255.255
>
> Hi ,
> 224.0.0.1 = all systems
> 255.255.255.255  = broadcast
>
> I know that both are different BUT what is the actual difference ?
>
> Thanks guys
> kenairs
>
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