On Wed, Aug 26, 2009 at 11:28 AM, Chris
Kleeschulte<[email protected]> wrote:
> I can dhcp relay all my hosts except for Windows-based hosts.
> I narrowed the problem down to the Windows machine setting the broadcast
> flag on the dhcp initial request.
> I also know that Microsoft claims this is a problem in Vista, but all my
> hosts are XP and the flag seems to be set there too.
> Tcpdump on the pfsense machine confirms the broadcast flag set. The dhcp
> server (a dnsmasq server) can handle the request, but the pfsense will not
> forward the packet from one subnet to the other, I think. I know broadcast
> is really destined for the local network only and that is the proper way to
> handle it, so it is a hack to force the pfsense to send the request anyway?
> So is the proper way to fix this to hack the registry on all the windows
> machines to nuke out the broadcast flag OR take the easy route and make the
> pfsense/dhcrelay forward the packet anyway?

Fix the problem on the SP3 box(s).   But if you know C and can force
pfSense to forward the broadcast flag then go for that by modifying
isc-dhcp-relay.

Scott

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