ARP (Address Resolution Protocol)

Sehen Sie sich das Video unter https://www.youtube.com/watch?v=hx9ZZivtzEE&spfreload=10 an. Führen Sie alle vorgeführten Schritte selbst auf Ihrem Rechner aus und dokumentieren Sie alle wesentlichen Schritte (wenn möglich mit Screenshots) auf Ihrem Blog.


General information:

• ARP-Address Resolution Protocol
• ARP resolves IP addresses to MAC addresses at Layer 2
• Frames on a local network are delivered to a MAC address
• So, a MAC address needs to be resolved from an IP address before a packet can be delivered.
• ARP plays an important role in the functioning of local area networks (LAN)
• We can demonstrate the ARP process using a command prompt and Wireshark.

IP addresses help us to reach/find networks
To deliver actual frames on a local network, we need the MAC-addresses.

The MAC-address of a typical Multicast starts with those characters: 01-00-5e-..-..-..
Broadcast: ff-ff-ff-ff-ff-ff



arp-commands:



Next let us start wireshark:




-Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis,
software and communications protocol development, and education.

-Wireshark allows the user to put network interface controllers in order to see all traffic visible on that interface, not just traffic addressed to one of the interface's configured addresses and broadcast/multicast traffic.

Example: