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RE: Have I misunderstood an ipchains concept?

> -----Original Message-----
> From: Noah L. Meyerhans [mailto:frodo@morgul.net]
> Sent: Thursday, September 21, 2000 4:35 PM
> To: Christian Pernegger
> Cc: debian-security@lists.debian.org
> Subject: Re: Have I misunderstood an ipchains concept?
> Volume 1 of Rich Stevens' TCP/IP Illustrated indicates that your thinking
> is correct.  It's in section 2.7, where the book discusses the loopback
> interface.  I'll quote from the book for bit here:
> ---
> Datagrams sent to a broadcast address or a multicast addresss are copied
> to the loopback interface and sent out on the Ethernet.  This is because
> the definition of broadcasting and multicasting includes the sending host.
> ---

Maybe the keyterm here is copied? Then the vroadcasting host'd get 2 packets
... hmmm.

> So, were we to take the Stevens book as gospel,

I think we should :)


> then it seems like Linux
> is doing something wrong here.  I don't know if this is documented
> anywhere or not.

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