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Configuration Task Summary
Configuration Task Summary
ARP can be
a dynamic ARP or a static ARP. ARP provides some extended functions,
such as proxy ARP, ARP-Ping.
Static ARP entries improve communication security. However,
a large number of ARP entries increase configuration and maintenance
costs.
Static ARP entries can be configured on important network
devices such as servers to specify member devices that they can communicate
with. In this way, mappings between IP addresses and MAC addresses
of these member devices cannot be modified by forged ARP packets and
illegal ARP replies can be prevented. This protects servers against
network attacks.
Proxy ARP is classified into the following three types:
Routed Proxy ARP: Routed Proxy ARP enables network devices on
the same network segment but on different physical networks to communicate.
Intra-VLAN Proxy ARP: Intra-VLAN Proxy ARP enables isolated network
devices in a VLAN to communicate.
Inter-VLAN Proxy ARP: Inter-VLAN Proxy ARP enables network devices
in different VLANs or network devices in different sub-VLANs but on
the same network segment to communicate.