Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server?

A. ip dhcp snooping trust

B. ip dhcp snooping

C. ip dhcp trust

D. ip dhcp snooping information








 

Suggested Answer: A

When configuring DHCP snooping, follow these guidelines:
✑ DHCP snooping is not active until you enable the feature on at least one VLAN, and enable DHCP globally on the switch.
✑ Before globally enabling DHCP snooping on the switch, make sure that the devices acting as the DHCP server and the DHCP relay agent are configured and enabled.
✑ If a Layer 2 LAN port is connected to a DHCP server, configure the port as trusted by entering the "ip dhcp snooping trust" interface configuration command.
✑ If a Layer 2 LAN port is connected to a DHCP client, configure the port as untrusted by entering the no ip dhcp snooping trust interface configuration command.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/snoodhcp.html

This question is in 300-115 Implementing Cisco IP Switched Networks (SWITCH) Exam
For getting Cisco Certified Network Professional (CCNP) Routing and Switching Certificate





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