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Old 03-21-2009, 04:00 AM   #1
Registered: Feb 2009
Location: Bangalore
Posts: 61

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Angry DHCP Offer is not a broadcast traffic when using a DHCP Relay, why?

I use a DHCP relay to forward the DHCP packets from a FC 4 system to
the DHCP server running on a FC 4 system, 2.6.11. The agent gets the
DHCP discover message and adds the relay agent information and sends to the
DHCP server. I get the DHCP offer from the server which is a Unicast
packet to the IP that will be assigned to the client. Generally the
DHCP offer will be a broadcast message. Will the server send a Unicast
Offer message because of using a Relay? Because the destination IP
is not the IP of the relay, the relay is not processing the packet.

Old 03-23-2009, 08:17 AM   #2
LQ Guru
Registered: Oct 2005
Location: Northeast Ohio
Distribution: linuxdebian
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Have you read rfc1542 ?

sections 3.1.1 and 4.1.2


dhcp, relay

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