Answer :

Ip dhcp snooping, ip dhcp snooping vlan 20, interface Gi0/12, and ip dhcp snooping trust should all be configured on SW 2.

What command will enable DHCP snooping worldwide?

DHCP snooping can be started by using the global command ip dhcp snooping. DHCP snooping is enabled globally on a Cisco switch. Next, use the ip dhcp snooping vlan 99 command to configure the VLANs you want to protect.

In DHCP snooping, what does option 82 mean?

The relay agent information option, also known as option 82, is included by the DHCP relay agent when sending client-originating DHCP packets to a DHCP server.

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