QTECH QSW-2800 Инструкция по настройке - Manual (Page 197)

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Switch(Config)#
Switch(config)#ip arp-security convert
If the environment changing, it enable to forbid ARP refresh, once it learns ARP property, it
wont be refreshed by new ARP reply packet, and protect use data from sniffing.
Switch#config
Switch(config)#ip arp-security updateprotect