Re: Can the SPF technique be used to stop IP address spoofi

On Tue, Nov 23, 2004 at 10:36:36AM +0000,
 David Woodhouse <dwmw2(_at_)infradead(_dot_)org> wrote 
 a message of 30 lines which said:

> We can use the same technique as SPF to address this forgery,
> though. I can publish a record which says the MAC address of my
> Ethernet card
The problem is you no longer see it, once you are on a different
LAN. The packets from *your* machine will have the MAC address of *my*
router. You will have to learn a bit about IP before trying to secure
it :-)