Ip Interface Arpproxy - 3Com SuperStack II 9300 Command Reference Manual

ip interface arpProxy

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For CoreBuilder 9000: Applies to Layer 3 switching modules only.
On a per-interface basis, enables or disables ARP proxy, which helps end
stations on a subnetwork reach remote subnetworks that do not have
routing capabilities or a default gateway configured.
Valid Minimum Abbreviation
ip i a
Important Considerations
When ARP proxy is enabled and an end station sends an Address
Resolution Protocol (ARP) request for a remote network, the system
determines if it has the best route and then answers the ARP request
by sending its own MAC address to the end station. The end station
then sends the frames for the remote destination to the system, which
uses its own routing table to reach the destination on the other
network.
When an interface is defined, the default ARP proxy state is
The end stations must view the entire network configuration as one
network (that is, by using a smaller subnet mask).
Evaluate prolonged use of ARP proxy because it has some drawbacks,
including increased ARP traffic and a need for larger ARP tables to
handle the mapping of IP addresses to MAC addresses.
Options
Prompt Description
Interface Index number for the interface
for which you want to enable or
disable ARP proxy.
(Not applicable if you have more
than one interface)
ARP proxy Whether you want to implement
state ARP proxy on an interface. The
system prompts you for a state
for each interface.
ip interface arpProxy
enabled
Possible Values [Default]
One or more Current
selectable value
interface
indexes
all
? (for a list of
selectable
interface
indexes)
enabled Current
value
disabled
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.