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Updated:August 5, 2017
Enable ARP Proxy on the SFE/SGE Managed Switches
Address Resolution Protocol (ARP) is a telecommunication protocol which is used to resolve the network layer addresses into data link layer addresses. Proxy ARP allows a routing switch to answer ARP requests from devices on one network on behalf of devices on another network. The Proxy ARP is well known about the location where the incoming traffic is destined and gives its own MAC address in reply. The received traffic is routed by the proxy to a desired destination by using another interface or by using a tunnel. This article explains how to enable ARP proxy on the SFE/SGE Managed Switch. Once the ARP proxy is enabled in this page, it is enabled on all interfaces.
• SFE/SGE Managed Switches
Enable ARP Proxy
Note: The ARP Proxy can only be configured if the switch mode is in Layer 3. Switches work on layer 2 but there are several switches that can also work on layer 3. For more information about how to convert switch from layer 2 to layer 3, read through the article Convert Switch from layer 2 to Layer 3 via Putty on the SFE/SGE Managed Switches.
Step 1. Log in to the web configuration utility and choose System > System Management > IP Addressing > ARP Proxy. The ARP Proxy page opens:
Step 2. Choose Enable from the ARP Proxy drop-down list to enable the switch to reply to ARP requests through the use of the MAC address of the switch for the nodes that are located remotely.
Step 3. Click Apply.
Caution: This only saves your configuration to the running configuration file. This means any changes made will be lost if the device is rebooted. If you wish to save these changes even after a system reboot, you need to copy the running configuration file to the startup configuration file. See Copy Configuration File on SFE/SGE Series Managed Switchesfor more information on how to do this.