Summary of ARP Configuration Tasks
ARP entries are classified into static and dynamic ARP entries. The device supports the adjustment of dynamic ARP entry aging parameters, configuration of static ARP entries, and some extended ARP applications such as proxy ARP.
For details on ARP security, see ARP Security Configuration in the NetEngine AR Configuration - Security.
Scenario |
Description |
Task |
|---|---|---|
Adjusting aging parameters of dynamic ARP entries |
Dynamic ARP entries can be aged, updated, or overridden by static ARP entries. They are generated and maintained automatically using the ARP protocol. You can adjust the aging parameters of dynamic ARP entries based on service requirements. |
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Configuring static ARP |
Static ARP entries will not be aged or overridden by dynamic ARP entries, ensuring communication security. Static ARP entries can be configured for important devices (such as servers) on the router. |
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Configuring proxy ARP |
Proxy ARP falls into the following types and applies to different scenarios:
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Connecting the device to an NLB cluster |
Network load balance (NLB) is a Microsoft-developed feature running in a cluster of multiple Windows servers. You can enable the device to interwork with an NLB cluster using any of the following methods:
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Configuring dynamic learning of ARP entries with multicast MAC addresses |
When the user terminals connected to the device have multicast MAC addresses, the device can be configured to dynamically learn ARP entries with multicast MAC addresses. |
Configuring Dynamic Learning of ARP Entries with Multicast MAC Addresses |
Configuring ARP unicast probe |
When the peer device cannot receive broadcast packets, ARP unicast probe can be configured on the local device. After ARP unicast probe is configured, the device sends a unicast ARP Request packet to detect whether a user terminal exists. |
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Configuring ARP-Ping |
ARP-Ping includes ARP-Ping IP and ARP-Ping MAC. ARP-Ping is used to check whether a specified IP address or MAC address is used by sending ARP Request packets or ICMP Request packets.
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