D-Link DGS-1250 Emulator - Page 134
ip dhcp snooping verify mac-address, ip dhcp snooping vlan
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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide Example This example shows how to disable the roaming state. Switch# configure terminal Switch(config)# ip dhcp snooping Switch(config)# ip dhcp snooping vlan 10 Switch(config)# ip dhcp snooping station-move deny Switch(config)# 16-12 ip dhcp snooping verify mac-address This command is used to enable the verification that the source MAC address in a DHCP packet matches the client hardware address. Use the no form of this command to disable the verification of the MAC address. ip dhcp snooping verify mac-address no ip dhcp snooping verify mac-address Parameters None. Default By default, this option is enabled. Command Mode Global Configuration Mode. Usage Guideline The DHCP snooping function validates the DHCP packets when they arrive at the port on the VLAN that is enabled for DHCP snooping. By default, DHCP snooping will verify that the source MAC address in the Ethernet header is the same as the DHCP client hardware address to pass the validation. Example This example shows how to enable the verification that the source MAC address in a DHCP packet matches the client hardware address. Switch# configure terminal Switch(config)# ip dhcp snooping verify mac-address Switch(config)# 16-13 ip dhcp snooping vlan This command is used to enable DHCP snooping on a VLAN or a group of VLANs. Use the no form of this command to disable DHCP snooping on a VLAN or a group of VLANs. ip dhcp snooping vlan VLAN-ID [, | -] no ip dhcp snooping vlan VLAN-ID [, | -] Parameters VLAN-ID Specifies the VLAN to be used. 131
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