Date: Thu, 18 Jun 2009 18:14:29 -0400 From: Glen Barber <glen.j.barber@gmail.com> To: Tim Judd <tajudd@gmail.com> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: The short and curlies of vista networking Message-ID: <4ad871310906181514g5166ccbfg8ae85c79b1c41309@mail.gmail.com> In-Reply-To: <ade45ae90906181451ld2ff287j5eca91701ef43ba4@mail.gmail.com> References: <200906180941.04597.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> <C152DD00-F39E-4DB3-9E0F-E9D010F273B0@mac.com> <ade45ae90906181127l7d38f6e0k19b76b5def7de98e@mail.gmail.com> <200906181328.35326.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> <ade45ae90906181451ld2ff287j5eca91701ef43ba4@mail.gmail.com>
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On Thu, Jun 18, 2009 at 5:51 PM, Tim Judd<tajudd@gmail.com> wrote: > Replies inline > > On 6/18/09, Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> wro= te: >> On Thursday 18 June 2009 10:27:44 Tim Judd wrote: >>> Long ago in 2007, I saw a M$ article that describes that Vista has an >>> extremely short delay period to get an IP. =A0If it doesn't get it >>> within 1 second, it gives up (and maybe tries again). =A0Common DHCP >>> servers ping an IP address, wait 1 second for a reply, and if no >>> reply, assumes the IP is available and leases it to the booting >>> computer. >> ISC-dhcpd doesn't work that way. It keeps a lease db and assumes it's db= is >> the authority on available iP's for the range. > > dhcpd.conf(5) > search for ping-check or ping-timeout > > http://www.freebsd.org/cgi/man.cgi?query=3Ddhcpd.conf&apropos=3D0&sektion= =3D5&manpath=3DFreeBSD+7.2-RELEASE+and+Ports&format=3Dhtml > > >> >>> Is your DHCP server authoritative? >> >> Yes: >> authoritative; >> ddns-update-style interim; >> >> subnet 192.168.2.0 netmask 255.255.255.0 { >> =A0 =A0 range 192.168.2.200 192.168.2.254; >> >> =A0 =A0 option subnet-mask 255.255.255.0; >> =A0 =A0 option broadcast-address 255.255.255.255; >> =A0 =A0 option domain-name "lan.rachie.is-a-geek.net"; >> =A0 =A0 option domain-name-servers 192.168.2.51; >> =A0 =A0 option routers 192.168.2.1; >> >> =A0 =A0 option ntp-servers 192.168.2.10; >> =A0 =A0 option wpad "http://192.168.2.100/proxy.pac"; >> >> =A0 =A0 # Dynamic DNS setup >> =A0 =A0 =A0 <snipped for brevity> >> } > > 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. --=20 Glen Barber
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