Option-82 in DHCPACK-packets

[David W. Hankins]

On Wed, Apr 18, 2007 at 09:31:58AM +0200, Dahl, Alfred Henning wrote:
> However, when the client after leasetime/2 tries to renew its lease, even when option-82-information is included in the request, it is _not_ inkluded in the reply from the DHCP-server.

As far as I am aware, this is only if giaddr is not set.

> Would you seay this is a bug that should be fixed, or is this pattern a correct behaviour?

This specific behaviour is not a bug.  RFC3046 defines it as
behaviour you should expect.

But, the code paths that elect not to include option 82 when giaddr
is not set also will fail to interoperate per RFC3046 when the relay
agent is a "l2" relay agent...one that never sets giaddr, not even
when the client is broadcasting their packets.

So that is a bug that is scheduled for our next maintenance release,
and it has the effect that your other behaviour will change.

-- 
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