
Configuring IP Services
5-10
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With Proxy ARP enabled, the router will respond with an ARP reply if there is a
valid route (that is, if the router is able to forward traffic) to the destination in the
routing table. This route may be a subnet route or a default route. For the router to
respond for subnets that are reachable via the default route, you must configure IP
to use a default route for unknown subnets (see “Using a Default Route for an
Unknown Subnet” on page 4-15).
Some devices use Proxy ARP to determine a gateway rather than relying on a
statically defined default gateway. These devices will use ARP for all remote
destinations. To enable the router to reply to ARP for remote destinations on other
networks, you must enable Proxy ARP and set the Nonlocal ARP Destination
parameter to Accept (see “Customizing Global ARP Characteristics” on page
5-5).
By default, Proxy ARP is disabled on the interface. You can use the BCC or Site
Manager to enable Proxy ARP.
Using the BCC
Navigate to the IP interface-specific prompt and enter:
proxy
state
state is one of the following:
on
off
For example, the following command turns on Proxy ARP on IP interface 2.2.2.2:
ip/2.2.2.2# proxy on
ip/2.2.2.2#
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