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IP R
OUTING
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• 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.
Command Attributes
• Timeout – Sets the aging time for dynamic entries in the ARP cache.
(Range: 300 - 86400 seconds; Default: 1200 seconds or 20 minutes)
• Proxy ARP – Enables or disables Proxy ARP for specified VLAN
interfaces.
Web - Click IP, ARP, General. Set the timeout to a suitable value for the
ARP cache, enable Proxy ARP for subnetworks that do not have routing
or a default gateway, and click Apply.
Figure 3-118 ARP General