[syslinux] PXE/TFTP Transfer time out problems
Geert Stappers
stappers at stappers.nl
Fri Sep 9 08:46:19 PDT 2005
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On Thu, Sep 08, 2005 at 01:25:04PM -0600, Jason Gerfen wrote:
> I am having a problem while trying to download anything from a recently
> configured tftp boot server.
>
> Here are the configuration for the dhcpd.conf
>
<snip/>
>
> subnet 155.97.17.160
^^^^^^^^^^^^^
> netmask 255.255.255.224 {
> option domain-name-servers ns.domain.com, ns1.domain.com;
> option routers routerIP;
> }
>
> group {
> next-server tftp_server;
Don't put underscores in hostnames, they are not allow by RFC 1035
( http://www.ietf.org/rfc/rfc1035.txt )
> filename "pxelinux.0";
> host PXE-Client {
> hardware ethernet 00:02:B3:EF:75:39;
> fixed-address 192.168.0.1;
^^^^^^^^^^^^
Doesn't match the previous address (range)
> }
> }
>
> Here are is the tcpdump data being recieved when getting a pxelinux.0
>
> 13:52:42.837342 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF],
> length: 50) 192.168.0.2.1027 > tftp.server.com.tftp: [udp sum ok] 22
^^^
Previous was about address .1
> RRQ "pxelinux.0" netascii
> 13:52:47.834011 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF],
> length: 50) 192.168.02.1027 > tftp.server.com.tftp: [udp sum ok] 22 RRQ
> "pxelinux.0" netascii
>
> And here is the output of a tftp request for the same file
>
> tftp> get pxelinux.0
> getting from 155.97.16.163:pxelinux.0 to pxelinux.0 [netascii]
> sent RRQ <file=pxelinux.0, mode=netascii>
> sent RRQ <file=pxelinux.0, mode=netascii>
> sent RRQ <file=pxelinux.0, mode=netascii>
> sent RRQ <file=pxelinux.0, mode=netascii>
> sent RRQ <file=pxelinux.0, mode=netascii>
> Transfer timed out.
>
> The transfer times out and I am left with a file "pxelinux.0" with a
Because server and client are on different IP networks
> filesize of 0 bytes.
File was created, but no data recieved.
>
> I am not able to find any information regarding this problem using
> google or searching the syslinux mailing list. Any help is appreciated.
Connect the administrator of the network 155.97.17.160/255.255.255.224
and ask for an address for the client ( so that it will be an other then
192.168.0.* )
>
> --
> Jason Gerfen
>
> "In the absence of justice, what is sovereignty but organized robbery?"
> ~ Saint Augustine
Cheers
Geert Stappers
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