Options handling for Unicast packets in RENWE State

David W. Hankins David_Hankins at isc.org
Fri Mar 23 18:44:00 UTC 2007

On Fri, Mar 23, 2007 at 05:56:08AM +0530, venkataramana.kaza at wipro.com wrote:
> 	When the DHCP Server is receiving the Unicast Packets (in RENEW State) with Option 82 added, it is stripping it off and
> 	Sending the responses with out the Option 82 attached.

It's been recently (today) brought to my attention that the server
does not reply with the relay agent information option specifically
in the case where the relay agent does not set giaddr.

> 	As per our understanding the Relay Agent can expect the Option 82 from the Server Responses due to Security reasons.

Security reasons?  I'd never heard that before.

The relay agent options are usually echoed back as a hint to the
relay on how to locate the client.

ISC Training!  http://www.isc.org/training/  training at isc.org
Washington DC area, April 16-20 2007.  DNS & BIND, DDNS & DHCP.
David W. Hankins	"If you don't do it right the first time,
Software Engineer		you'll just have to do it again."
Internet Systems Consortium, Inc.	-- Jack T. Hankins

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