RE: Same Wire Different Vlans

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My fault I guess I needed to add a subnet range for the fxp0 ip so i added

subnet 198.182.157.0 255.255.255.0

to the conf file without the shared-network statement
here is is starting up

xxxx# dhcpd
Internet Software Consortium DHCP Server V3.0pl2
Copyright 1995-2003 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP
Wrote 23 leases to leases file.
Listening on BPF/fxp0/00:d0:b7:9d:90:79/198.182.157.0/24
Sending on   BPF/fxp0/00:d0:b7:9d:90:79/198.182.157.0/24
Sending on   Socket/fallback/fallback-net

now to trunk and test

At 11:18 AM 1/27/2003 -0800, you wrote:
>    *** From dhcp-server -- To unsubscribe, see the end of this message. ***
>
>
>Without the shared-network statement the dhcpd will not bind to any of the
>subnets since it has an ip on fxp0 of 198.182.X.X 255.255.255.0
>unless anyone has any ideas here is the error starting up and here is the
>conf file
>as of now
>
>xxxx# dhcpd -t
>Internet Software Consortium DHCP Server V3.0pl2
>Copyright 1995-2003 Internet Software Consortium.
>All rights reserved.
>For info, please visit http://www.isc.org/products/DHCP
>xxxx# dhcpd
>Internet Software Consortium DHCP Server V3.0pl2
>Copyright 1995-2003 Internet Software Consortium.
>All rights reserved.
>For info, please visit http://www.isc.org/products/DHCP
>Wrote 23 leases to leases file.
>
>No subnet declaration for fxp0 (198.182.157.37).
>** Ignoring requests on fxp0.  If this is not what
>     you want, please write a subnet declaration
>     in your dhcpd.conf file for the network segment
>     to which interface fxp0 is attached. **
>
>
>Not configured to listen on any interfaces!
>
>If you did not get this software from ftp.isc.org, please
>get the latest from ftp.isc.org and install that before
>requesting help.
>
>If you did get this software from ftp.isc.org and have not
>yet read the README, please read it before requesting help.
>If you intend to request help from the dhcp-server@xxxxxxx
>mailing list, please read the section on the README about
>submitting bug reports and requests for help.
>
>Please do not under any circumstances send requests for
>help directly to the authors of this software - please
>send them to the appropriate mailing list as described in
>the README file.
>
>exiting.
>
>default-lease-time              86400;
>max-lease-time                  86400;
>option domain-name              "calarts.edu";
>option domain-name-servers      198.182.157.34, 198.182.157.25;
>ddns-update-style               none;
>
>#Vlan 19 - Administration
>subnet 172.19.0.0 netmask 255.255.0.0 {
>          range 172.19.0.10 172.19.0.254;
>          option routers 172.19.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 20 - Art School
>subnet 172.20.0.0 netmask 255.255.0.0 {
>          range 172.20.0.10 172.20.0.254;
>          option routers 172.20.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 21 - Butler Buildings
>subnet 172.21.0.0 netmask 255.255.0.0 {
>          range 172.21.0.10 172.21.0.254;
>          option routers 172.21.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 22 - Film/Video Labs
>subnet 172.22.0.0 netmask 255.255.0.0 {
>          range 172.22.0.10 172.22.0.254;
>          option routers 172.22.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 23 - Housing Office
>subnet 172.23.0.0 netmask 255.255.0.0 {
>          range 172.23.0.10 172.23.0.254;
>          option routers 172.23.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 24 - Library Labs
>subnet 172.24.0.0 netmask 255.255.0.0 {
>          range 172.24.0.10 172.24.0.254;
>          option routers 172.24.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 25 - Music School
>subnet 172.25.0.0 netmask 255.255.0.0 {
>          range 172.25.0.10 172.25.0.254;
>          option routers 172.25.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 26 - Other/Misc.
>subnet 172.26.0.0 netmask 255.255.0.0 {
>          range 172.26.0.10 172.26.0.254;
>          option routers 172.26.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 27 - Theater School
>subnet 172.27.0.0 netmask 255.255.0.0 {
>          range 172.27.0.10 172.27.0.254;
>          option routers 172.27.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 28 - Galleries
>subnet 172.28.0.0 netmask 255.255.0.0 {
>          range 172.28.0.10 172.28.0.254;
>          option routers 172.28.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 29 - Dorms/Ahmanson
>subnet 172.29.0.0 netmask 255.255.0.0 {
>          range 172.29.0.10 172.29.0.254;
>          option routers 172.29.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 30 - Dorms/Chouinard
>subnet 172.30.0.0 netmask 255.255.0.0 {
>          range 172.30.0.10 172.30.0.254;
>          option routers 172.30.255.254;
>          option subnet-mask 255.255.0.0;
>}
>#Vlan 31 - Studios
>subnet 172.31.0.0 netmask 255.255.0.0 {
>          range 172.31.32.10 172.31.32.250;
>          option routers 172.31.255.254;
>          option subnet-mask 255.255.0.0;
>}
>
>
>
>
>
>
>At 09:38 AM 1/27/2003 -0800, you wrote:
> >    *** From dhcp-server -- To unsubscribe, see the end of this message. ***
> >
> >
> >
> >
> >Just out of curiosity our Microsoft NT 4 server is running ms-dns, is not
> >trunked, has the "ip helper-address" added to the msfc vlan interfaces just
> >like the FreeBSD isc-bind box and it responds to all querys on diffrent
> >vlans.  How is this possible?
> >
> >We are going to trunk the FreeBSD port like you said so it will hear
> >everything and just have a straight conf file no "shared-network".  Can you
> >explain to me with what shared-network is really used for?  I'm confused I
> >thought it was for giving addresses out on networks not addressed to the
> >physical adapter.
> >
> >Thanks
> >
> >At 11:15 PM 1/26/2003 +0200, you wrote:
> > >    *** From dhcp-server -- To unsubscribe, see the end of this 
> message. ***
> > >
> > >
> > >The thing is, if you're running proper VLANS, as you seem to be with a 
> Cisco
> > >6000 switch + MSFC, then the subnets are *not* all on the same wire. 
> If you
> > >don't have a ISL or 802.1q trunk connection from your DHCP server to the
> > >switch then the server is (most likely) in one subnet. If you where 
> running
> > >a trunk connection you would have a multitude of logical interfaces 
> for the
> > >VLANs.
> > >
> > >In the context of the ISC-DHCP server a "shared network" is where two or
> > >more subnets are configured on the same interface, logical or 
> physical. They
> > >are declared "shared" so that the DHCP server knows it can hand out leases
> > >from either subnet to booting hosts connected to that interface. VLANs do
> > >not infer shared networks, so, you shouldn't be declaring your remote
> > >subnets - beyond the router (MFSC) - as being shared along with the subnet
> > >local to your server, they are, obviously, not on the same interface.
> > >
> > >To summarize, get rid of the "shared network" declaration until you 
> know for
> > >sure you need it.
> > >
> > >Regards Mike D.
> > >
> > >-----Original Message-----
> > >From: dhcp-server-bounce@xxxxxxx [mailto:dhcp-server-bounce@xxxxxxx]On
> > >Behalf Of Patrick Nixon
> > >Sent: Saturday, January 25, 2003 1:38 AM
> > >To: dhcp-server@xxxxxxx
> > >Subject: Re: Same Wire Different Vlans
> > >
> > >
> > >    *** From dhcp-server -- To unsubscribe, see the end of this 
> message. ***
> > >
> > >
> > >Have you configured your 'ip helper-address on the MSFC?
> > >
> > >Each interface vlan## needs one pointing to the DHCP Server's IP.
> > >
> > >--Pat
> > >
> > >On Fri, 2003-01-24 at 14:21, Sean Murphy wrote:
> > > >    *** From dhcp-server -- To unsubscribe, see the end of this message.
> > >***
> > > >
> > > >
> > > > I believe it is operating on the ethernet adapter.  here is the 
> start up
> > >of
> > > > what it is currently doing it is similar but it is not using the same
> > conf
> > > > file so at least it will give out address to the 31 vlan.
> > > >
> > > > I get this same message but it has the shared-network name on it 
> and fxp0
> > > > is the network card on it.
> > > >
> > > > if you need the exact one I will have to change it during lunch
> > > >
> > > > thanks for your help
> > > >
> > > >
> > > >
> > > > thebe# dhcpd
> > > > Internet Software Consortium DHCP Server V3.0pl2
> > > > Copyright 1995-2003 Internet Software Consortium.
> > > > All rights reserved.
> > > > For info, please visit http://www.isc.org/products/DHCP
> > > > Wrote 11 leases to leases file.
> > > > Listening on BPF/fxp0/00:d0:b7:9d:90:79/172.31.0/16
> > > > Sending on   BPF/fxp0/00:d0:b7:9d:90:79/172.31.0/16
> > > > Sending on   Socket/fallback/fallback-net
> > > >
> > > >
> > > > At 06:09 PM 1/24/2003 +0000, you wrote:
> > > > >    *** From dhcp-server -- To unsubscribe, see the end of this 
> message.
> > >***
> > > > >
> > > > >
> > > > >
> > > > ><snip>
> > > > >
> > > > > > the first subnet it answers on and the server has the ip on that
> > >networ=
> > > > >k.
> > > > > > =
> > > > >
> > > > > > the second it does not answer on.
> > > > > > =
> > > > >
> > > > > > I think I need something in the conf file but I don't know what.
> > > > >
> > > > >I don't think so; I'm fairly sure that the problem is that the
> > > > >DHCP daemon "thinks" that the interface is *not* an Ethernet
> > > > >interface; the ordinary interface for the "native" VLAN is
> > > > >Ethernet but the interfaces for the VLANs that appear on the
> > > > >wire with VLAN tags are not Ethernets. I suspect the problem
> > > > >is either FreeBSD or perhaps generic *BSD specific.
> > > > >
> > > > >-- =
> > > > >
> > > > >         David Pick
> > > > >
> > > > >
> > > > >------------------------------------------------------------------- 
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> > > >
> > > > Sean Murphy
> > > > Network Technician
> > > > California Institute of the Arts
> > > > Voice           661.253.7732
> > > > Fax             661.254-4561
> > > >                  smurphy@xxxxxxxxxxx
> > > >
> > > >
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> >Sean Murphy
> >Network Technician
> >California Institute of the Arts
> >Voice           661.253.7732
> >Fax             661.254-4561
> >                  smurphy@xxxxxxxxxxx
> >
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>Sean Murphy
>Network Technician
>California Institute of the Arts
>Voice           661.253.7732
>Fax             661.254-4561
>                  smurphy@xxxxxxxxxxx
>
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Sean Murphy
Network Technician
California Institute of the Arts
Voice           661.253.7732
Fax             661.254-4561
                 smurphy@xxxxxxxxxxx 


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