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Chapter 4 Configuring the Address Resolution Protocol
Showing ARP Information
4-6
Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-8241-02
Use the clear arp cache command to delete dynamic entries from the ARP cache.
To specify an address for the single ARP entry you want to remove from the ARP
cache, use the clear arp cache ip_or_host command. Enter the address in either
dotted-decimal IP notation (for example, 192.168.11.1) or mnemonic host-name
format (for example, myhost.mydomain.com).
For example:
# clear arp cache 192.168.11.1
Showing ARP Information
Use the show arp command to display ARP information. To show static ARP
mapping when you use the show arp command, the IP route must exist in the
routing table.
The syntax for this global configuration mode command is:
show arp {config|file|management-port|summary|ip_or_host}
The syntax and options for the command are as follows:
• show arp - Displays the complete ARP resolution table with IP addresses,
MAC addresses, and resolution type, excluding entries from the CSS Ethernet
management port.
• config - Displays ARP global configuration parameters. The screen displays
the response timeout and the flush timeout, in seconds.
• file - Displays the hosts that are reachable using ARP. The screen displays the
IP addresses of the host systems.
• management-port - Displays the ARP entries from the CSS Ethernet
management port. The ARP resolution table displayed through the show arp
command displays these entries.
Note The CSS Ethernet management port IP address appears as an entry in
the Management Port ARP cache. This is normal CSS behavior.