Users Guide

○ ip-address: IP address in dotted decimal format (A.B.C.D).
○ mac-address: MAC address in nnnn.nnnn.nnnn format.
○ interface: enter the interface type slot/port information.
These entries do not age and can only be removed manually. To remove a static ARP entry, use the no arp ip-address
command.
To view the static entries in the ARP cache, use the show arp static command in EXEC privilege mode.
DellEMC#show arp
Protocol Address Age(min) Hardware Address Interface VLAN CPU
--------------------------------------------------------------------------------
Internet 10.1.2.4 17 08:00:20:b7:bd:32 Ma 1/1 - CP
DellEMC#
Enabling Proxy ARP
By default, Proxy ARP is enabled. To disable Proxy ARP, use the no proxy-arp command in the interface mode.
To re-enable Proxy ARP, use the following command.
● Re-enable Proxy ARP.
INTERFACE mode
ip proxy-arp
To view if Proxy ARP is enabled on the interface, use the show config command in INTERFACE mode. If it is not listed in the
show config command output, it is enabled. Only non-default information is displayed in the show config command
output.
Clearing ARP Cache
To clear the ARP cache of dynamically learnt ARP information, use the following command.
● Clear the ARP caches for all interfaces or for a specific interface by entering the following information.
EXEC privilege
clear arp-cache [interface | ip ip-address] [no-refresh]
○ ip ip-address (OPTIONAL): enter the keyword ip then the IP address of the ARP entry you wish to clear.
○ no-refresh (OPTIONAL): enter the keywords no-refresh to delete the ARP entry from CAM. Or to specify which
dynamic ARP entries you want to delete, use this option with interface or ip ip-address.
○ For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port/subport information.
○ For a 25-Gigabit Ethernet interface, enter the keyword twentyFiveGigE then the slot/port/subport information.
○ For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port/subport information.
○ For a 50-Gigabit Ethernet interface, enter the keyword fiftyGigE then the slot/port/subport information.
○ For a 100-Gigabit Ethernet interface, enter the keyword hundredGigE then the slot/port information.
○ For a port channel interface, enter the keywords port-channel then a number.
○ For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
NOTE:
Transit traffic may not be forwarded during the period when deleted ARP entries are resolved again and re-installed
in CAM. Use this option with extreme caution.
IPv4 Routing 413