xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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Proxy ARP Settings (RI and EI Mode Only)
The Proxy ARP (Address Resolution Protocol) feature of the Switch will allow the Switch to reply to ARP requests
destined for another device by faking its identity (IP and MAC Address) as the original ARP responder. Therefore,
the Switch can then route packets to the intended destination without configuring static routing or a default gateway.
The host, usually a layer 3 switch, will respond to packets destined for another device. For example, if hosts A and
B are on different physical networks, B will not receive ARP broadcast requests from A and therefore cannot
respond. Yet, if the physical network of A is connected by a router or layer 3 switch to B, the router or Layer 3
switch will see the ARP request from A.
This local proxy ARP function allows the Switch to respond to the proxy ARP, if the source IP and destination IP
are in the same interface.
To view the following window, click
Management > ARP > Proxy ARP Settings
, as shown below:
Figure 3-2 Proxy ARP Settings window
Click the
Edit
button to re-configure the specific entry and select the proxy ARP state of the IP interface. By default,
both the
Proxy ARP State
and
Local Proxy ARP State
are disabled.
ARP Table
Users can display current ARP entries on the Switch.
To view the following window, click
Management > ARP > ARP Table
, as shown below:
Figure 3-3 ARP Table window
The fields that can be configured are described below:
Parameter
Description
Interface Name
Enter or view the Interface name used.
IP Address
Enter or view the IP Address used.
MAC Address
Enter or view the MAC Address used.
Click the
Find
button to locate a specific entry based on the information entered.
Click the
Show Static
button to display only the static entries in the display table.
Click the
Clear All
button to remove all the entries listed in the table.
Enter a page number and click the
Go
button to navigate to a specific page when multiple pages exist.
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