ARP timeout refers to the duration for which an Address Resolution Protocol (ARP) cache entry remains valid before it is removed or refreshed. When a device communicates over a network, it uses ARP to map IP addresses to MAC addresses, storing this information in a cache to optimize future communications. If the entry is not used within the specified timeout period, it is cleared to ensure the cache remains current, preventing potential communication issues due to outdated information. The default timeout can vary by operating system and configuration.
The ARP cache typically clears entries after a timeout period, which can vary based on the operating system and specific configuration. Generally, the timeout can range from a few minutes to several hours, with many systems defaulting to around 2-20 minutes. However, entries can also be manually flushed or cleared by administrative commands. It's essential to consult the specific system documentation for precise timeout settings.
Dynamic ARP table entries are created whne a client makes an ARP request that cannot be satisfied by data already in the ARP table.
arp -a show arp
static arp
Gerald Arp is 186 cm.
Arp Schnitger was born in 1648.
Arp Schnitger died in 1719.
The ISBN of Tech ARP is 0131455362.
Andrice Arp was born in 1969.
Bill Arp was born in 1826.
Bill Arp died in 1903.
Robert Arp was born in 1970.