Re: Tracking mac address

As I understand it (subject to change), this is true of IPV4. When IPV6
comes into widespread use (if ever) the source mac address is part of
the source IP address, so it never gets lost.

Correct me if I am wrong.

So, assuming IPV4, mac addresses are exchanged only on the local
segment, whatever that may be. At each switch, router, etc. the IP
wrapper is updated for the next segment.

Again, correct me if I am wrong.

I want to understand =:-)}}}

On Sat, Sep 18, 2004 at 07:22:32PM -0800, Barsalou wrote:
> It seems to me that the problem of tracking an IP back to it's source is
> a bit troublesome if you don't have access to the routers between the
> source mac and the destination mac.
>
> In addition, since the routers typically change the mac address to the
> router, there is no real way to figure out where the packet originated.
>
> How far off am I on this?
>
> Mike B.
> --
> Barsalou <barjunk@attglobal.net>
>
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