TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 100
ip arp inspection(interface
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T2500-28TC JetStream L2 Managed Switch CLI Guide Command Mode Interface Configuration Mode (interface fastEthernet / interface range fastEthernet / interface gigabitEthernet / interface range gigabitEhternet) Example Configure the Fast Ethernet ports 2-5 as the Trusted Port: T2500-28TC(config)#interface range fastEthernet 1/0/2-5 T2500-28TC(config-if-range)#ip arp inspection trust ip arp inspection(interface) Description The ip arp inspection command is used to enable the ARP Defend function. To disable the ARP detection function, please use no ip arp inspection command. ARP Attack flood produces lots of ARP Packets, which will occupy the bandwidth and slow the network speed extremely. With the ARP Defend enabled, the switch can terminate receiving the ARP packets for 300 seconds when the transmission speed of the legal ARP packet on the port exceeds the defined value so as to avoid ARP Attack flood. Syntax ip arp inspection no ip arp inspection Command Mode Interface Configuration Mode (interface fastEthernet / interface range fastEthernet / interface gigabitEthernet / interface range gigabitEhternet) Example Enable the arp defend function for the Fast Ethernet ports 2-6: T2500-28TC(config)#interface range fastEthernet 1/0/2-6 T2500-28TC(config-if-range)#ip arp inspection 83