Enabling Proxy Arp - Cisco Catalyst 9500 series Configuration Manual

Configuring Address Resolution Methods
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7

Enabling Proxy ARP

By default, the Device uses proxy ARP to help hosts learn MAC addresses of hosts on other networks or
subnets.
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
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Command or Action
configure terminal
Example:
Device# configure terminal
interface interface-id
Example:
Device(config)# interface
gigabitethernet 1/0/2
arp {arpa | snap}
Example:
Device(config-if)# arp arpa
end
Example:
Device(config)# end
show interfaces [interface-id]
Example:
Device# show interfaces
copy running-config startup-config
Example:
Device# copy running-config
startup-config
Configuring IP Unicast Routing
Purpose
Enters the global configuration mode.
Enters interface configuration mode, and specifies
the Layer 3 interface to configure.
Specifies the ARP encapsulation method:
• arpa—Address Resolution Protocol
• snap—Subnetwork Address Protocol
Returns to privileged EXEC mode.
Verifies ARP encapsulation configuration on all
interfaces or the specified interface.
(Optional) Saves your entries in the configuration
file.