D-Link DGS-1250 Emulator - Page 181
ip arp inspection vlan
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dst-mac ip DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide (Optional) Specifies to check for ARP response packets and the consistency of the destination MAC address in the Ethernet header against the target MAC address in the ARP payload. (Optional) Specifies to check the ARP body for invalid and unexpected IP addresses. Specifies to check the validity of IP address in the ARP payload. The sender IP in both the ARP request and response and target IP in the ARP response are validated. Packets destined for the IP addresses 0.0.0.0, 255.255.255.255, and all IP multicast addresses are dropped. Sender IP addresses are checked in all ARP requests and responses, and target IP addresses are checked only in ARP responses. Default By default, this option is disabled. Command Mode Global Configuration Mode. Usage Guideline Use this command to specify the additional checks to be performed during the dynamic ARP inspection check. The specified check will be performed on packets arriving at the untrusted interface and belong to the VLANs that are enabled for IP ARP inspection. If no parameter is specified, all options are enabled or disabled. Example This example shows how to enable source MAC validation. Switch# configure terminal Switch(config)# ip arp inspection validate src-mac Switch(config)# 23-9 ip arp inspection vlan This command is used to enable specific VLANs for dynamic ARP inspection. Use the no form of this command to disable dynamic ARP inspection for VLAN. ip arp inspection vlan VLAN-ID [, | -] no ip arp inspection vlan VLAN-ID [, | -] Parameters VLAN-ID , - Specifies the VLAN to enable or disable the ARP inspection function. (Optional) Specifies a series of VLANs or separates a range of VLANs from a previous range. No space is allowed before or after the comma. (Optional) Specifies a range of VLANs. No space is allowed before or after the hyphen. Default By default, ARP inspection is disabled on all VLANs. Command Mode Global Configuration Mode. 178
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