this is just a quick question, that i have been unable to find a conclusive answer to on the web.

i know that when one's computer receives a network packet, that packet has many layers of information. such as the IP address of the machine from which the packet originated, in the Network Layer. my question is about the Data Link Layer of a packet, which i know includes a MAC address.

my question is; is the MAC address, stored in a network packet's Data Link Layer, the MAC address of the machine from which the packet originated, or is it the MAC address of the last machine (e.g. router) through which this packet passed?

thanks in advance for your help.


regards,

- user0182