Edit arp message

Peter Silva peter at bsqt.homeip.net
Sat Apr 30 14:30:45 UTC 2016

ARP:  client sends broadcast (THA is a broadcast address) Server sees the
broadcast, and accepts the request.

The server responds by setting the THA to match the SHA of the request

So 'Cloned MAC Address' sets the SHA on the request sent by the client,
which in turn sets the THA on the reply.

beyond that, just need to echo the questions of others... need to know more
about what the purpose is.

On Sat, Apr 30, 2016 at 10:04 AM, Karl Auer <kauer at biplane.com.au> wrote:

> On Sat, 2016-04-30 at 16:39 +0300, Amer wrote:
> > The ARP messages either request/respond are very useful in
> > wired/wireless networks. In my problem we want to utilize THA.
> > Unfortunately, there is no other alternative cause our target is the
> > THA field and we want to utilize its bytes in our communication.
> Perhaps there is a language problem here. Let me try a few variations:
> Why do you want to "utilize the THA"?
> What is the ultimate reason for wanting to change the THA on an
> outgoing ARP packet?
> What *end result* do you seek?
> What are you doing this *for*?
> It looks to me as if you are trying to use ARP as a covert channel.
> Regards, K.
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