Vista doesn't ack dhcp offer

Doug Tucker tuckerd at
Mon Sep 24 14:44:28 UTC 2007

Literally, that's it.  Nothing else to show you.  Our gateway router has
those filters applied to the 128 subnet to limit what that subnet can do
with the other networks.  So yes, that's where were are, we don't know
how dhcp ever worked if this filter is needed for the non-broadcast
clients.  Or, from our perspective, what is more disturbing is, does it
allow ANYTHING that is not broadcast to pass, even though the deny all
is in place?

On Mon, 2007-09-24 at 15:37 +0100, Simon Hobson wrote:
> Doug Tucker wrote:
> >Sorry, after spending a week on that I had to catch up on some stuff.
> >Here are the filters for the 128 subnet in question on the gateway
> >router.
> <snip>
> >They are exactly the same now, as the day things were working for
> >unicast and not working for broadcast for dns, with the only acception
> >being we added the ONE filter for dhcp128, which allowed the broadcast
> >to work as well.  To recap, without this filter in allowing broadcast
> >though, the clients not setting the broadcast bit were still working
> >fine.
> Which interface are these rules applied to ? Which direction ? Or 
> does this device apply rules 'globally' ?
> I can only see the one rule for DHCP - the one you've added, so 
> depending on where this rule is applied then it could be that "I 
> can't see how DHCP ever worked" !

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