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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
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Proxy ARP
Figure 8- 1. Proxy ARP with Traffic Segmentation
To setup IP Interfaces on the Switch:
To view the IP Interface Settings on the Switch, click L3 Features > IP Interfaces Settings:
Figure 8- 2. IP Interface Settings window
To setup a new IP interface, click the Add button. To edit an existing IP Interface entry, click on an entry under the Interface
Name heading. Both actions will result in the same screen to configure, as shown below.
NOTE: After all IP interfaces are set for your configurations, VLANs on the
switch can be routed without any additional steps.
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 requester. 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.