CCNA LANs 11-9: DEMO: Dynamic ARP Inspection (DAI)
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🔐 Enabling DAI requires the use of the DHCP snooping binding database. Begin by activating DHCP snooping globally on the switch, then specify the VLANs for which DAI will be applied.
🔍 Next, mark trusted ports where legitimate ARP messages are expected. This involves configuring DHCP snooping and ARP inspection on the trusted ports, such as Port Channels.
🛡️ Define the validation criteria for ARP messages using the ip arp inspection validate command. Specify which components, such as destination MAC, IP, and source MAC, should be inspected for legitimacy.
By implementing Dynamic ARP Inspection, you can fortify your network against ARP spoofing and poisoning attacks, bolstering overall security and safeguarding sensitive data. 💪 #DynamicARPInspection #NetworkSecurity #ProtectYourNetwork
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