Enabling Arp Proxy - Cisco SF500-24 Administration Manual

Configuring IP Information

Enabling ARP Proxy

STEP 6
Enabling ARP Proxy
STEP 1
STEP 2
STEP 3
Cisco 500 Series Stackable Managed Switch Administration Guide
For devices in Layer 3 mode, an IPv4 interface can be configured on a port, LAG
or VLAN. Select the desired interface from the list of configured IPv4 interfaces
on the switch.
• IP Address—Enter the IP address of the local device.
• MAC Address—Enter the MAC address of the local device.
Click Apply. The ARP entry is written to the Running Configuration file.
The Proxy ARP technique is used by a device on a given IP subnet to answer ARP
queries for a network address that is not on that network.
The ARP Proxy is aware of the traffic destination, and offers another MAC address
in reply. Serving as an ARP Proxy for another host effectively directs LAN traffic
destination to the host. The captured traffic is then typically routed by the Proxy to
the intended destination by using another interface, or by using a tunnel.
The process in which an ARP query request for a different IP address, for proxy
purposes, results in the node responding with its own MAC address is sometimes
referred to as publishing.
This page enables configuring the status of the ARP proxy feature. After it is
enabled on this page, it is enabled on all of the IP interfaces.
To enable ARP Proxy on the switch:
Click IP Configuration > Enabling ARP Proxy.
The ARP Proxy page opens.
Select ARP Proxy to enable the switch to respond to ARP requests for remotely-
located nodes with the switch MAC address.
Click Apply. The ARP proxy is enabled, and the Running Configuration file is
updated.
17
292