DHCP packet flow with bootp flag set to broadcast vs unicast

MVP
MVP
Q:

DHCP packet flow with bootp flag set to broadcast vs unicast



A:

Case 1:

If the bootp flag is set to unicast in the DHCP DISCOVER packet, then the destination IP in the OFFER & ACK packet is set to client IP.

1.  DHCP DISCOVER packet.

 

2. DHCP OFFER

 

3. DHCP ACK.

 

Case 1:

If the bootp flag is set to broadcast in the DHCP DISCOVER packet, then the destination IP in the OFFER & ACK packet is set to 255.255.255.255.

DHCP DISCOVER:

DHCP OFFER:

 

DHCP ACK:

 

Note: DHCP request packet is always sent as broadcast.

Version history
Revision #:
2 of 2
Last update:
2 weeks ago
Updated by:
 
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