Clear ARP entries from various devices

From Cisco Switches / Firewall (ASA) / Switches:

To see the arp table:
#show arp

To clear the arp table:
#clear arp

To clear selective entry:
#clear ip arp IPAddress
eg. clear ip arp


c:\> arp -a (display arp table cache)
C:\> arp -d (delete arp table cache)


Display arp table:
#arp -e (arp -a, arp -n etc)

Add Static Arp Entry
# arp -i eth0 -s 00:bb:23:11:13:fc  (ifconfig will show you the prticular mac address from the network adapter)

Selectively delete arp cache
#arp -d hostname
#arp -d

Removing arp cache from particular network adapter:
#arp -i eth1 -d

Flush arp entry for host
# ip neigh flush

Flush arp entry for all hosts in network
# ip neigh flush

Flush all arp entries:
# ip neigh flush all

Mac OS X:
$ sudo arp -a -d (no need sudo if you are login as root)


About Robiul

Robiul has 15 years of continuous successful career experience in ICT with extensive background in System Engineering, IT infrastructure design, operations and service delivery, managing IT projects / MIS functions for local and multi-national companies with in-depth knowledge of multiple operating systems as well as construct / manage small to medium size Data Center. Proven ability to design and implement medium to semi-large scale LAN/WAN/WLAN and system infrastructures. Academic qualification: Master of Science in Information Systems. Professional certifications are: MCSE, CCNA, ITIL and FoundStone Security Professional, VCP, NetAPP, CISSP etc.
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1 Response to Clear ARP entries from various devices

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