in Computer Networks recategorized by
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1 vote
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Which of the following statement is/are correct?

  1. A Router has a physical and logical(IP) address for each of its interfaces.
  2. A router acts only on those packets in which the link-layer destination address matches the address of the interface at which the packet arrives.
  3. A router changes the link-layer address of the packet (both source and destination) when it forwards the packet.
  4. All the above
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3 Comments

whats the answer ?
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I dont think source link layer address can be changed. Only the destination mac is changed..Can you confirm please.
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Yes, what Option C says is True. How else does the router forward packets?

It changes destination MAC to the intended next node, and changes source MAC to itself, obviosuly.
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