TP-Link T1600G-28PS Jetstream Smart Switches User Guide - Page 767
Using the CLI, Adding IP-MAC Binding Entries, Enabling ARP Detection, Auto Refresh, Illegal ARP Packet
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Configuring IPv4 IMPB ARP Detection Configuration In the Auto Refresh section, you can enable the auto refresh feature and specify the refresh interval, and thus the web page will be automatically refreshed. In the Illegal ARP Packet section, you can view the number of illegal ARP packets in each VLAN. VLAN ID Displays the VLAN ID. Forwarded Displays the number of forwarded ARP packets in this VLAN. Dropped Displays the number of dropped ARP packets in this VLAN. 3.2 Using the CLI 3.2.1 Adding IP-MAC Binding Entries In ARP Detection, the switch detects the ARP packets based on the binding entries in the IP-MAC Binding Table. So before configuring ARP Detection, you need to complete IP-MAC Binding configuration. For details, refer to IP-MAC Binding Configuration. 3.2.2 Enabling ARP Detection Follow these steps to enable ARP Detection: Step 1 configure Enter global configuration mode. Step 2 ip arp inspection Globally enable the ARP Detection feature. Step 3 ip arp inspection validate { src-mac | dst-mac | ip } Configure the switch to check the IP address or MAC address of the received packets. src-mac: Enable the switch to check whether the source MAC address and the sender MAC address are the same when receiving an ARP packet. If not, the ARP packet will be discarded. dst-mac: Enable the switch to check whether the sender IP address of all ARP packets and the target IP address of ARP reply packets are legal. The illegal packets will be discarded. ip: Enable or disable the switch to check whether the sender IP address of all ARP packets and the target IP address of ARP reply packets are legal. The illegal ARP packets will be discarded, including broadcast addresses, multicast addresses, Class E addresses, loopback addresses (127.0.0.0/8) and the following address: 0.0.0.0. Step 4 ip arp inspection vlan vlan-list Enable ARP Detection on one or more 802.1Q VLANs that already exist. vlan-list: Enter the VLAN ID. The format is 1,5-9. User Guide 742
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