MAC Addresses in routed datagrams

Hi,
I am due to teach some pupils the basics of MAC Addresses/IP Addresses and routing soon and I have a (hopefully) quick question which I am hoping someone here can help me with.
When a frame is placed out onto a public network is has a destination MAC Address. Is this address the MAC address of the next hop or the address of the final destination. If it is the next hop then am I right in assuming that the once the frame reaches the next router, the frame is unpacked to obtain the IP address from the layer 3 headers, and a new layer 2 frame is assembled with the MAC address of the next router to which the frame is to be sent.

Hello robertfl00k
When a frame is placed out onto a public network it will be having destination Mac Address of the next hop. When that frame will be received by the router, then it will remove the layer 2 information and check its routing table for the destination ip address. If destination will be available there in the routing table then it will attach new layer 2 information and forward that data to next hop.
Regards,
Mukesh Kumar
Network Engineer
Spooster IT Services

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C2950#

MAC Addresses in routed datagrams

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