It could be the switch.
If you can, use a crossover cable between the server and a single client
to see if the switch is interfering with the communication.
If it is the switch, and it is a managed Cisco switch, try enabling the
"Portfast" option.
-Gadi
On Sat, 2008-09-27 at 15:21 +0200, [EMAIL PROTECTED] wrote:
> i modified my dhcpd.conf file like this:
>
> --------------------------------------------------
> option domain-name "linuxlab";
> option routers 192.168.11.254;
> option root-path "192.168.11.254:/opt/ltsp/i386";
> option option-128 code 128 = string;
> option option-129 code 129 = text;
> option broadcast-address 192.168.11.255;
> option subnet-mask 255.255.255.0;
> default-lease-time 604800;
> next-server 192.168.11.254;
>
> group LABClients {
> next-server 192.168.11.254;
>
> if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" {
> filename "/ltsp/i386/pxelinux.0";
> } else {
> filename "/ltsp/i386/nbi.img";
> }
>
> host studente1 {
> hardware ethernet 00:1d:0f:ff:d1:07;
> fixed-address 192.168.11.101;
> }
>
> [...]
>
> host studente10 {
> hardware ethernet 00:d0:09:17:57:5d;
> fixed-address 192.168.11.110;
> }
> }
> --------------------------------------------------
>
> but it doesn't works.
> so i tried dhcpdump and it gives me this (this is the reply):
>
> ---------------------------------------------------------------------------
> TIME: 11:58:08.386955
> IP: > (00:c0:df:25:1c:4a) > (00:1d:0f:ff:db:03)
> OP: 2 (BOOTPREPLY)
> HTYPE: 1 (Ethernet)
> HLEN: 6
> HOPS: 0
> XID: 0fffe761
> SECS: 0
> FLAGS: 0
> CIADDR: 0.0.0.0
> YIADDR: 192.168.11.102
> SIADDR: 192.168.11.254
> GIADDR: 0.0.0.0
> CHADDR: 00:1d:0f:ff:db:03:00:00:00:00:00:00:00:00:00:00
> SNAME: .
> FNAME: /ltsp/i386/nbi.img.
> OPTION: 53 ( 1) DHCP message type 2 (DHCPOFFER)
> OPTION: 54 ( 4) Server identifier 192.168.11.254
> OPTION: 51 ( 4) IP address leasetime 86400 (24h)
> OPTION: 1 ( 4) Subnet mask 255.255.255.0
> OPTION: 3 ( 4) Routers 192.168.11.254
> ---------------------------------------------------------------------------
>
> clients continue to don't ACK... any suggestion? :(
> thanks
> quark
>
>
>
> Rob Owens ha scritto:
> > [EMAIL PROTECTED] wrote:
> >> my problem is thaht i receive the No IP Address error on the client's
> >> screens, but the solution i found on the FAQ (next-server entry in the
> >> dhcp conf file) doesn't work...
> >> my firewall is off
> >> i use LTSP 5 with Etherboot 5.4.2 with zhd files (that i wrote to disk
> >> using
> >> tomsrtbt, "The most GNU/Linux on one floppy disk").
> >>
> >> syslog file doesn't log any error from client:
> >> ----------------------------
> >> Sep 13 11:43:23 continuity dhcpd: DHCPDISCOVER from 00:50:ba:bf:66:29
> >> via eth2
> >> Sep 13 11:43:28 continuity dhcpd: DHCPOFFER on 192.168.11.106 to
> >> 00:50:ba:bf:66:29 via eth2
> >> Sep 13 11:43:49 continuity dhcpd: DHCPDISCOVER from 00:50:ba:bf:66:29
> >> via eth2
> >> Sep 13 11:43:54 continuity dhcpd: DHCPOFFER on 192.168.11.106 to
> >> 00:50:ba:bf:66:29 via eth2
> >> ----------------------------
> >> and so on...
> >> the same is for /var/log/messages file
> >>
> >>
> >> my dhcp.conf file assigns MAC based IPs:
> >> ---------------------------------------------------------
> >> option domain-name "linuxlab";
> >> #option domain-name-servers 192.168.11.254;
> >> option routers 192.168.11.254;
> >> option root-path "/opt/ltsp/i386";
> >> option option-128 code 128 = string;
> >> option option-129 code 129 = text;
> >> option broadcast-address 192.168.11.255;
> >> #get-lease-hostnames true;
> >> option subnet-mask 255.255.255.0;
> >> default-lease-time 604800;
> >> next-server 192.168.11.254;
> >>
> >> option option-129 "acpi=force";
> >>
> >> subnet 192.168.11.0 netmask 255.255.255.0 {
> >> range 192.168.11.1 192.168.11.99;
> >> next-server 192.168.11.254;
> >>
> >> if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" {
> >> filename "/ltsp/i386/pxelinux.0";
> >> next-server 192.168.11.254;
> >> } else {
> >>
> >> next-server 192.168.11.254;
> >> }
> >> }
> >>
> >> host studente1 {
> >> hardware ethernet 00:1d:0f:ff:d1:07;
> >> fixed-address 192.168.11.101;
> >> }
> >>
> >> host studente2 {
> >> hardware ethernet 00:1d:0f:ff:db:03;
> >> fixed-address 192.168.11.102;
> >> }
> >>
> >> host studente3 {
> >> hardware ethernet 00:1d:0f:ff:db:08;
> >> fixed-address 192.168.11.103;
> >> }
> >>
> >> host studente4 {
> >> hardware ethernet 00:50:ba:bf:66:20;
> >> fixed-address 192.168.11.104;
> >> }
> >>
> >> host studente5 {
> >> hardware ethernet 00:80:c8:e6:92:cc;
> >> fixed-address 192.168.11.105;
> >> }
> >>
> >> host studente6 {
> >> hardware ethernet 00:c0:26:ed:4d:58;
> >> fixed-address 192.168.11.106;
> >> }
> >> ---------------------------------------------------------
> >>
> > Do you realize that you're not handing out kernels to the
> > statically-assigned IP addresses? If they are thin clients, you'll need
> > to specify a kernel for them each individually, or as part of a group.
> > You can do this:
> >
> > group MyStaticThinclients-PXE {
> > filename "/ltsp/i386/pxelinux.0";
> >
> > host studente1 {
> > hardware ethernet 00:1d:0f:ff:d1:07;
> > fixed-address 192.168.11.101;
> > }
> >
> > host studente2 {
> > hardware ethernet 00:1d:0f:ff:db:03;
> > fixed-address 192.168.11.102;
> > }
> > }
> >
> > You can do the same for group MyStaticThinclients-Etherboot, but specify
> > filename "/ltsp/i386/nbi.img";
> > You might also be able to use the "if, then" logic that is used in your
> > dynamic range, in order to combine all of your etherboot and pxe static
> > workstations into one group.
> >
> > I believe the PXE and etherboot processes hit your DHCP server twice.
> > Once to get their IP address, and once to get "further instructions". I
> > wonder if you're actually getting hung up on the 2nd request due to the
> > fact that you haven't specified a kernel in your static stanzas.
> >
> >
> > I also noticed your root-path statement doesn't contain in IP address.
> > I'm not sure if it's required or not, but mine has one. It looks like this:
> >
> > option root-path "10.112.0.254:/opt/ltsp/i386";
> >
> > (in your case, change it to the IP address of your server).
> >
> > -Rob
> > ********************************************************
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--
--------------------------------------------------------
Gideon Romm | Proud LTSP Developer
[EMAIL PROTECTED]
Support LTSP! Buy your hardware at:
www.DisklessWorkstations.com
www.DisklessThinClients.com
(use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com)
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_____________________________________________________________________
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