Command Reference IP Address Commands
Usage Guide
This command can be used to refresh an ARP cache table.
A Network Foundation Protection Policy (NFPP) device receives one ARP packet for
every MAC or IP address per second by default. If the interval between twice ARP
clearing is within 1 second, the second response packet will be filtered out and the ARP
packet will fail to be parsed in a short time.
Configuration
Examples
The following example removes all dynamic ARP mapping records.
clear arp-cache
The following example removes the dynamic ARP entry 1.1.1.1.
clear arp-cache 1.1.1.1
The following example removes dynamic ARP table entries on interface SVI1.
clear arp-cache interface Vlan 1
Related
Commands
Command Description
arp
Adds a static mapping record to the ARP table.
Platform
Description
The parameter trusted is not supported by routers.
clear ip route
Use this command to remove the entire IP routing table or a particular routing record in the IP routing
table in privileged user mode.
clear ip route { * | network [ netmask ] }
Parameter
Description
Parameter Description
* Removes all the routes.
network
The network or subnet address to be removed
netmask
(Optional) Network mask
Defaults
N/A
Command
Mode
Privileged user mode
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