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IPv4 Routing

Beschreibung

CCENT 4.Fundamentals of IPv4 Addressing and Routing Mindmap am IPv4 Routing, erstellt von jce299792458 am 05/10/2013.
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Mindmap von jce299792458, aktualisiert more than 1 year ago
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Erstellt von jce299792458 vor fast 12 Jahre
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Zusammenfassung der Ressource

IPv4 Routing
  1. Host Routing
    1. Step 1. If the destination IP address is in the same IP subnet as I am, send the packet directly to that destination host.
      1. Step 2. Otherwise, send the packet to my default gateway, also known as a default router.
      2. Router Forwarding Logic
        1. Step 1. Use the data link Frame Check Sequence (FCS) field to ensure that the frame had no errors; if errors occurred, discard the frame.
          1. Step 2. Assuming that the frame was not discarded at Step 1, discard the old data link header and trailer, leaving the IP packet.
            1. Step 3. Compare the IP packet’s destination IP address to the routing table, and find the route that best matches the destination address.
              1. Step 4. Encapsulate the IP packet inside a new data link header and trailer, appropriate for the outgoing interface, and forward the frame.
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