Implementing Cisco IP Switched Networks (CCNP SWITCH, legacy) — Question 119

What happens if a switch with dhcp snooping and ip source guard enabled globally, what does the switch do when it receives a packet with option 82?

Answer options

• A. Drop
• B. Remove 82 and forward
• C. Proxy
• D. NA

Correct answer: B

Explanation

The correct answer is B because when a switch with DHCP snooping and IP Source Guard receives a packet with option 82, it removes the option and forwards the packet to ensure proper DHCP process adherence. The other options are incorrect as dropping the packet (A) would prevent any processing, proxying (C) does not apply in this context, and NA (D) is not relevant to the switch's actions with option 82.