Users Guide

INTERFACE PORT-CHANNEL Mode
INTERFACE PORT EXTENDER Mode
arp-inpsecton-trust
Dell(conf)#int peGigE 0/0/0
Dell(conf-if-pegi-0/0/0)# arp-inpsection-trust
Configuring ARP Timeout
Use the arp backoff-timer command for setting the exponential timer for resending unresolved
ARPs.
• Set the exponential timer for resending unresolved ARPs.
CONFIGURATION Mode
arp backoff-time seconds / minutes
Enter the number of seconds an ARP entry is black-holed. The range is from 1 to 3600. The default is
30 minutes.
Enter the number of minutes an ARP entry is balck-holed. The range is from 0 to 35790. The default is
4 hours.
Dell(conf)#arp backoff-time minutes
Enabling Proxy ARP
By default, Proxy ARP is enabled. To disable Proxy ARP, use the no ip 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.
IPv4 Routing
517