TP-Link T1600G-18TS Jetstream Smart Switches User Guide - Page 530
Configuring Proxy ARP, Gratuitous ARP Global Settings, Apply, Gratuitous ARP Table
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Configuring ARP Figure 2-3 Configuring Gratuitous ARP ARP Configurations Follow these steps to configure the Gratuitous feature for the interface. 1) In the Gratuitous ARP Global Settings section, configure the global parameters for gratuitous ARP. Then click Apply. Send on IP Interface Status Up With this option enabled, the interface will send gratuitous ARP request packets when its status becomes up. This is used to announce the interface's IP address to the other hosts. It is enabled by default. Send on Duplicate IP Detected With this option enabled, the interface will send gratuitous ARP request packets when a gratuitous ARP request packet is received for which the IP address is the same as the interface's. In this case, the switch knows that another host is using the same IP address as its own. To claim the IP address for the correct owner, the interface sends gratuitous ARP packets. It is disabled by default. Gratuitous ARP Learning Normally, the switch only updates the MAC address table by learning from the ARP reply packet or normal ARP request packet. With this option enabled, the switch will also update the MAC address table by learning from the received gratuitous ARP packets. It is disabled by default. 2) In the Gratuitous ARP Table section, configure the interval of sending gratuitous ARP request packets for the interface. Then click Apply. Interface Name Displays the Interface ID of the Layer 3 interface. Gratuitous ARP Periodical Send Interval Enter the interval of sending gratuitous ARP request packets for the interface. A value of 0 means the interface will not send gratuitous ARP request packets periodically. 2.1.4 Configuring Proxy ARP Proxy ARP is used in the situation that two devices are in the same network segment but connected to different Layer 3 interfaces. Choose the menu L3 FEATURES> ARP > Proxy ARP > Proxy ARP to load the following page. User Guide 505
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