I think the solution is to use dhcp-ignore.
You have to write some config which discriminates between clients you
want answered and ones you don't (via MAC address, vendor-class, or
otherwise) and arrange that a tag is set only for ones you want, then add
dhcp-ignore=!<tag>
to your config.
Looking at you config, you may already have most of what you need:
> dhcp-vendorclass=etherboot,Etherboot
> dhcp-vendorclass=pxe,PXEClient
> dhcp-vendorclass=ltsp,"Linux ipconfig"
If tag "ltsp" is set for the stuff you want to go to the OpenSuse ltsp
server, than
dhcp-ignore=ltsp
may be all that's needed.
Cheers,
Simon.
On 14/11/13 08:52, Funke, Martin wrote:
Hi,
since yesterday i set up my ubuntu ltsp server plus dnsmasq configured as a
proxydhcp.
My Problem is that every client which boots via pxe uses the proxydhcp. I use already a
DHCP Server where some clients get a "next-server" option to boot from a
OpenSuse ltsp.
With my Ubuntu ltsp running every client which normally uses the OpenSuse LTSP
is now using the Ubuntu one.
In the dnsmasq.conf it says something like:
# If another DHCP server is present on the network, you may use a proxy range
# instead.
Is there some special syntax for a proxy range?
This is my dnsmasq.conf:
# Configures dnsmasq for PXE client booting.
# All the files in /etc/dnsmasq.d/ override the main dnsmasq configuration in
# /etc/dnsmasq.conf.
# You may modify this file to suit your needs, or create new ones in dnsmasq.d/.
# Log lots of extra information about DHCP transactions.
#log-dhcp
# IP ranges to hand out.
dhcp-range=192.168.67.20,192.168.67.250,8h
# If another DHCP server is present on the network, you may use a proxy range
# instead. This makes dnsmasq provide boot information but not IP leases.
# (needs dnsmasq 2.48+)
dhcp-range=10.0.2.215,proxy
# The rootpath option is used by both NFS and NBD.
dhcp-option=17,/opt/ltsp/i386
# Define common netboot types.
dhcp-vendorclass=etherboot,Etherboot
dhcp-vendorclass=pxe,PXEClient
dhcp-vendorclass=ltsp,"Linux ipconfig"
# Set the boot filename depending on the client vendor identifier.
# The boot filename is relative to tftp-root.
dhcp-boot=net:pxe,/ltsp/i386/pxelinux.0
dhcp-boot=net:etherboot,/ltsp/i386/nbi.img
dhcp-boot=net:ltsp,/ltsp/i386/lts.conf
# Kill multicast.
dhcp-option=vendor:pxe,6,2b
# Disable re-use of the DHCP servername and filename fields as extra
# option space. That's to avoid confusing some old or broken DHCP clients.
dhcp-no-override
# We don't want a PXE menu since we're using a graphical PXELinux menu.
#pxe-prompt="Press F8 for boot menu", 3
# The known types are x86PC, PC98, IA64_EFI, Alpha, Arc_x86,
# Intel_Lean_Client, IA32_EFI, BC_EFI, Xscale_EFI and X86-64_EFI
pxe-service=X86PC, "Boot from network", /ltsp/i386/pxelinux
# A boot service type of 0 is special, and will abort the
# net boot procedure and continue booting from local media.
#pxe-service=X86PC, "Boot from local hard disk", 0
# Comment the following to disable the TFTP server functionality of dnsmasq.
enable-tftp
# The TFTP directory. Sometimes /srv/tftp is used instead.
tftp-root=/var/lib/tftpboot/
# Disable the DNS server functionality of dnsmasq by setting port=0
port=0
# Don't listen on lo, to prevent conflicts with Ubuntu's local resolver hack
(LP: #959037).
#except-interface=lo
#bind-interfaces
Martin Funke
EDV in Schulen
Kreisstadt Olpe
Franziskanerstr. 6
57462 Olpe / Biggesee
[Tel.] +49 2761/ 83 - 1311
[Fax ] +49 2761/ 83 - 2311
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