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Command Mode
Global Configuration mode
User Guidelines
•
The software uses ARP cache entries to translate 32-bit IP addresses into 48-bit hardware
addresses. Because most hosts support dynamic resolution, static ARP cache entries do not
need to be specified.
Example
The following example adds the IP address 198.133.219.232 and MAC address 00:00:0c:40:0f:bc to
the ARP table.
console(config)# arp 198.133.219.232 00:00:0c:40:0f:bc ethernet
g16
arp timeout
The arp timeout Global Configuration mode command configures how long an entry remains in
the ARP cache. To restore the default value, use the no form of this command.
Syntax
arp timeout seconds
no arp timeout
•
seconds — Time (in seconds) that an entry remains in the ARP cache. (Range: 1 -
40000000)
Default Configuration
The default timeout is 60000 seconds.
Command Mode
Global Configuration mode
User Guidelines
•
It is recommended not to set the timeout value to less than 3600.
Example
The following example configures ARP timeout to 12000 seconds.
console(config)# arp timeout 12000
142
IP Addressing Commands
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