Frank> On Fri, Sep 01, 2006 at 10:40:25AM -0400, John Stoffel wrote:
This will only work if you have a bridged network, once you have a switch in the way, the MAC address will change. This is because
Frank> Nope - a switch is logically identical to a bridge with more Frank> than two ports. A packet forwarded by a router will have the Frank> routers MAC address because the router has to generate a new Frank> ethernet frame with the same ethernet payload as the original Frank> packet, while a switch will blindly forward the packet to Frank> wherever it's FDB tells it to. Details details... don't confuse me with facts! *grin* You're right of course.
For network switches, each port has it's own MAC address. Basically,
Frank> Only if the switch supports spanning tree, and only for Frank> spanning tree - those per-port MACs aren't used for anything Frank> else. Yup, that's the details I mis-remembered. Then again, who pays attention to this stuff any more? *grin* John