Cisco Certified Network Associate 0 (ccna)

Task 3. Configure DHCP Snooping on Sw1: On Sw1:
Sw1(config)#ip dhcp snooping //Enable DHCP Snooping feature
Sw1(config)#ip dhcp snooping vlan 10 //Enable DHCP Snooping for VLAN 10 only Sw1(config)#no ip dhcp relay information option //Disable DHCP Option-82 data insertion
Sw1(config)#ip dhcp snooping verify mac-address //Globally enables MAC address verification for DHCP snooping on all switch interfaces.

+ Configure trusted interfaces for DHCP Snooping. In this case “trusted” interfaces are interfaces that are connecting to the DHCP Server and other switches -> Interfaces e0/1, e0/2 should be configured trusted interfaces.

Sw1(config)#interface e0/1 Sw1(config-if)#ip dhcp snooping trust Sw1(config)#interface e0/2 Sw1(config-if)#ip dhcp snooping trust

Verification

Sw1#show ip dhcp snooping Switch DHCP snooping is enabled

DHCP snooping is configured on following VLANs: 10 Insertion of option 82 is disabled
Option 82 on untrusted port is not allowed Verification of hwaddr field is enabled Interface Trusted Rate limit (pps)

Ethernet0/1		yes	unlimited
Ethernet0/2		yes	unlimited

Save the configurations:

Sw1+Gw1#copy running-config startup-config

Correct Answer: A

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