ECS4110-28T_Management Guide

C HAPTER 18 | General IP Routing
Address Resolution Protocol
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sending its own MAC address to the requesting node. That node then sends
traffic to the router, which in turn uses its own routing table to forward the
traffic to the remote destination.
Figure 411: Proxy ARP
PARAMETERS
These parameters are displayed:
◆ VLAN – VLAN identifier (Range: 1-4094)
◆ Status – Enables or disables Proxy ARP for the specified VLAN, allowing
a non-routing device to determine the MAC address of a host on
another subnet or network. (Default: Disabled)
End stations that require Proxy ARP must view the entire network as a
single network. These nodes must therefore use a smaller subnet mask
than that used by the router or other relevant network devices.
Extensive use of Proxy ARP can degrade router performance because it
may lead to increased ARP traffic and increased search time for larger
ARP address tables.
WEB INTERFACE
To enable Proxy ARP for a VLAN (i.e., IP subnetwork):
1. Click IP, ARP.
2. Select Configure General from the Step List.
3. Enable Proxy ARP for subnetworks that do not have routing or a default
gateway.
4. Click Apply.
Figure 412: Configuring Proxy ARP
no routing,
no default
gateway
Remote
ARP Server
Proxy ARP
ARP
request