During DHCP packet forwarding, a DHCP relay agent modifies the corresponding fields in a DHCP packet to complete packet type conversion. Which of the following statements is correct?
DHCP Relay Agent Functionality :
A DHCP relay agent forwards DHCP packets between clients and servers located in different subnets.
It modifies the packet headers to ensure proper delivery:
Converts broadcast packets from clients into unicast packets to forward them to the DHCP server.
Converts unicast responses from the DHCP server back into broadcast packets for delivery to clients.
Why C?
The DHCP relay agent performs bidirectional conversion between broadcast and unicast packets to facilitate communication between clients and servers in different subnets.
Other Options :
A : Incorrect because DHCP relay agents do not convert packet types (e.g., Ethernet vs. non-Ethernet).
B : Incorrect because the relay agent handles both broadcast-to-unicast and unicast-to-broadcast conversions.
D : Incorrect because the relay agent modifies unicast packets during forwarding.
Thus, the correct answer is C .
HCIA Huawei ACCESS Official Documentation , Chapter: DHCP Relay Agent.
RFC 2131: DHCP Protocol Specification .
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