Date: Sat, 20 Jun 2009 09:56:04 -0800 From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> To: freebsd-questions@freebsd.org Cc: Tim Judd <tajudd@gmail.com>, Glen Barber <glen.j.barber@gmail.com> Subject: Re: The short and curlies of vista networking Message-ID: <200906200956.05646.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> In-Reply-To: <7401FDE8-39DD-4D74-AB9C-4A8D71975739@mac.com> References: <200906180941.04597.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> <4ad871310906181514g5166ccbfg8ae85c79b1c41309@mail.gmail.com> <7401FDE8-39DD-4D74-AB9C-4A8D71975739@mac.com>
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On Thursday 18 June 2009 14:30:21 Chuck Swiger wrote: > On Jun 18, 2009, at 3:14 PM, Glen Barber wrote: > >> A broadcast of 255.255.255.255 is misconfigured (not saying it's not > >> gonna work, I'm saying for your network, it's not configured right). > >> you need broadcast-address 192.168.2.255 > > > > That is not 100% correct. By default, dhclient will send an initial > > DHCPREQUST to 0.0.0.0 (meaning "this network"). The request is picked > > up from the DHCP server broadcasting on 255.255.255.255. > > The inconsistency between these two points might actually lead the OP > to a solution. Evidently Vista does something different with the DHCP > broadcast flag, see: http://support.microsoft.com/kb/928233 > > If you specify a network and netmask in the subnet statement, you > shouldn't need to override the broadcast address it computes, which > for the config posted ought to be "192.168.2.255". Using the all-ones > broadcast address should not be done by normal members of the > network-- only for things which need to go beyond the network subnet/ > topology (ie, the DHCP server itself might choose to send to > 255.255.255.255 to make sure that anything else on the local collision > domain sees it, even if the local network is split into multiple > logical subnets). This is part of a "tried fix". I noticed while I was in Switzerland the Swisscom adsl+wireless router gave me a all ones broadcast thus I figured what the hell, might as well try that. So I had configured my bridge with this broadcast address. I deleted the broadcast argument from ifconfig now and matched dhcpd.conf accordingly, but no changes in behavior. -- Mel
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