Syslinux - Nov 2007 - PXELINUX - TFTP Problems - Option Negotiation Failures

I apologize if this is the wrong place to be asking this, but I'm pretty
much out of options on where to go. I'm using the pxelinux version of tftp.
Everything has worked well up to this point, however I've been trying to
impliment a pxe bartpe solution in our office. Unfortunatly tftp is not passing
the files correctly to the client.

Here's the rundown.
Server client connects to server host, get pxe/dhcp/tftp. Get standard m32 menu
and client selects windows pe options. The next step is where the client will
call NTLDR from the tftp server, this works fine and the client begins to load
NTLDR. However NTLDR calls a file called ntdetect.com from the server. The
server ACK's the call and then ends up failing.

Here's the error thought packet captures:
Read Request, File: ntdetect.com, Transfer type: octet, blksize=1432, tsize=0
Option Acknowledgement, tsize=47564
Eoor Code, Code: Option negotiation failed, Message: Bad TFTP options

After this the whole process fails and halts. Basicaly is there something
I'm missing. Am I using the wrong version or is there a configuration change
I can do.

Jonathan Hurd wrote:
> I apologize if this is the wrong place to be asking this, but I'm
pretty much out of options on where to go. I'm using the pxelinux version of
tftp. Everything has worked well up to this point, however I've been trying
to impliment a pxe bartpe solution in our office. Unfortunatly tftp is not
passing the files correctly to the client.
> 
> Here's the rundown.
> Server client connects to server host, get pxe/dhcp/tftp. Get standard m32
menu and client selects windows pe options. The next step is where the client
will call NTLDR from the tftp server, this works fine and the client begins to
load NTLDR. However NTLDR calls a file called ntdetect.com from the server. The
server ACK's the call and then ends up failing.
> 
> Here's the error thought packet captures:
> Read Request, File: ntdetect.com, Transfer type: octet, blksize=1432,
tsize=0
> Option Acknowledgement, tsize=47564
> Eoor Code, Code: Option negotiation failed, Message: Bad TFTP options
> 
> After this the whole process fails and halts. Basicaly is there something
I'm missing. Am I using the wrong version or is there a configuration change
I can do.
Looks like you have configured tftp-hpa to reject the blksize option (-r 
blksize) and NTLDR doesn't like that.

	-hpa

(-r blksize) blocks it or corrects the problem? I dont believe we are using any
options atm, and I would declare these optins in the inetd.conf file right?

#tftp    dgram   udp     wait    root    /usr/libexec/hpa.tftpd      hpa.tftpd
-r /home/y/share/broom/pxeroot

Does tftp-hpa work on bsd platforms or just tftpd? 


----- Original Message ----
From: H. Peter Anvin <hpa at zytor.com>
To: For discussion of SYSLINUX and tftp-hpa <syslinux at zytor.com>
Sent: Friday, November 2, 2007 3:21:20 PM
Subject: Re: [syslinux] PXELINUX - TFTP Problems - Option Negotiation Failures

Jonathan Hurd wrote:
> I apologize if this is the wrong place to be asking this, but I'm
pretty much out of options on where to go. I'm using the pxelinux version of
tftp. Everything has worked well up to this point, however I've been trying
to impliment a pxe bartpe solution in our office. Unfortunatly tftp is not
passing the files correctly to the client.
> 
> Here's the rundown.
> Server client connects to server host, get pxe/dhcp/tftp. Get standard m32
menu and client selects windows pe options. The next step is where the client
will call NTLDR from the tftp server, this works fine and the client begins to
load NTLDR. However NTLDR calls a file called ntdetect.com from the server. The
server ACK's the call and then ends up failing.
> 
> Here's the error thought packet captures:
> Read Request, File: ntdetect.com, Transfer type: octet, blksize=1432,
tsize=0
> Option Acknowledgement, tsize=47564
> Eoor Code, Code: Option negotiation failed, Message: Bad TFTP options
> 
> After this the whole process fails and halts. Basicaly is there something
I'm missing. Am I using the wrong version or is there a configuration change
I can do.
Looks like you have configured tftp-hpa to reject the blksize option (-r 
blksize) and NTLDR doesn't like that.

    -hpa

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Actualy, scratch the first question. No we don't have an -r option in use
b/c we are using another tftp binary (tftpd) which probably doesnt even support
option negotiation. So does the tftp-hpa binary work on bsd os versions?


----- Original Message ----
From: H. Peter Anvin <hpa at zytor.com>
To: For discussion of SYSLINUX and tftp-hpa <syslinux at zytor.com>
Sent: Friday, November 2, 2007 3:21:20 PM
Subject: Re: [syslinux] PXELINUX - TFTP Problems - Option Negotiation Failures

Jonathan Hurd wrote:
> I apologize if this is the wrong place to be asking this, but I'm
pretty much out of options on where to go. I'm using the pxelinux version of
tftp. Everything has worked well up to this point, however I've been trying
to impliment a pxe bartpe solution in our office. Unfortunatly tftp is not
passing the files correctly to the client.
> 
> Here's the rundown.
> Server client connects to server host, get pxe/dhcp/tftp. Get standard m32
menu and client selects windows pe options. The next step is where the client
will call NTLDR from the tftp server, this works fine and the client begins to
load NTLDR. However NTLDR calls a file called ntdetect.com from the server. The
server ACK's the call and then ends up failing.
> 
> Here's the error thought packet captures:
> Read Request, File: ntdetect.com, Transfer type: octet, blksize=1432,
tsize=0
> Option Acknowledgement, tsize=47564
> Eoor Code, Code: Option negotiation failed, Message: Bad TFTP options
> 
> After this the whole process fails and halts. Basicaly is there something
I'm missing. Am I using the wrong version or is there a configuration change
I can do.
Looks like you have configured tftp-hpa to reject the blksize option (-r 
blksize) and NTLDR doesn't like that.

    -hpa

_______________________________________________
SYSLINUX mailing list
Submissions to SYSLINUX at zytor.com
Unsubscribe or set options at:
http://www.zytor.com/mailman/listinfo/syslinux
Please do not send private replies to mailing list traffic.