I'm sending this demo dhcpd.conf file along as a help to someone attempting to setup K12LTSP on their main network using only one ethernet card. I also noted in helping a couple of other people with their installations of K12LTSP with one ethernet card that eth0 is firewalled by default and the tftpserver cannot send a kernel to the client without the firewall being disabled or reconfigure to allow that traffic to occur. You'll have to change the IP numbers and subnets to match your setup. # Sample /etc/dhcpd.conf # Tom's sample dhcpd.conf ddns-update-style none; default-lease-time 21600; max-lease-time 21600; allow booting; allow bootp; option subnet-mask 255.255.254.0; option broadcast-address 168.169.0.255; option routers 168.169.78.1; option domain-name-servers 168.169.78.8, 168.169.78.9, 168.169.78.39; option domain-name "ltsp"; option root-path "168.169.78.39:/opt/ltsp/i386"; option option-128 code 128 = string; option option-129 code 129 = text; option option-221 code 221 = text; subnet 168.169.78.0 netmask 255.255.254.0 { range dynamic-bootp 168.169.78.110 168.169.78.131; range dynamic-bootp 168.169.78.133 168.169.78.139; range dynamic-bootp 168.169.78.142 168.169.78.153; range dynamic-bootp 168.169.78.155 168.169.78.253; } use-host-decl-names on; option log-servers 168.169.78.39; # trick from Peter Rundle # newer Macs if substring (option vendor-class-identifier, 0, 9) = "AAPLBSDPC" { filename "yaboot"; option vendor-class-identifier "AAPLBSDPC"; } # Intel PXE elsif substring (option vendor-class-identifier, 0, 9) = "PXEClient" { # NOTE: kernels are specified in /tftpboot/lts/pxe/pxelinux.cfg/ filename "/lts/pxe/pxelinux.bin"; } #default to an i386 BOOTP image else { filename "/lts/vmlinuz.ltsp"; } if substring (option vendor-class-identifier, 20, 3) = "ppc" { option root-path "168.169.78.39:/opt/ltsp/ppc"; } else { option root-path "168.169.78.39:/opt/ltsp/i386"; } Don "Do not go where the path may lead, go instead where there is no path and leave a trail"--Ralph Waldo Emerson Don Watkins, Technology Director Franklinville Central School Tel: 716-676-8004 Mobile: 716-474-5675 This message may contain confidential information. It is intended for the use of the addressee only. Unauthorized use of this e-mail may be unlawful.