ARP
Address Resolution Protocol (ARP) is a Layer 2 protocol that is used to discover the Data Link Layer address that is associated with a particular Network Layer address. ARP is most often used to discover the MAC address associated with a particular IPv4 address. ARP is used to maintain the ARP table within a network device.
In IPv6, the functionality of ARP is provided by the Neighbor Discovery Protocol (NDP)
Links
Links to this page:
- home
- ARP Message Header and Payload
- ARP Protocol Layer Classification
- ARP table default timeout
- ARP table
- ARP to Determine Next Hop IP Address
- CoPP - Best practices and operation
- DHCP decline message
- DHCP offer message sent as broadcast
- Ethernet frame types
- HSRP - standby group numbers
- ICMP - Mitigating Vulnerabilities
- IPv4 Link-local address range
- IPv6 - NDP Neighbor Discovery Process
- IPv6 Neighbor Discovery Protocol Extensions
- Interface - show interfaces counters explained
- Local Proxy ARP
- MAC address of all zeros
- Network - BUM Traffic
- Network - Example of communication, encapsulation, and decapsulation, between hosts
- Network planes
- Port ACL (PACL) Restrictions and Design Considerations
- Security - spoofing
- Static ARP entry for own IP address
- Switching - CEF Adjacency Table
- Troubleshooting high CPU and memory usage on a switch
- VACL - use cases