TFTP Open Timeout
Shabazian, Chip
Chip.Shabazian at bankofamerica.com
Tue Mar 7 20:44:46 UTC 2006
The key is WHEN do you see the traffic.
The NIC gets an IP address for PXEBoot, gets it's info needed via tftp,
then the NIC is RESTARTED, the driver loaded, the request sent again.
It's this second request where we have the timeout issue.
Chip
-----Original Message-----
From: kickstart-list-bounces at redhat.com
[mailto:kickstart-list-bounces at redhat.com] On Behalf Of
Elizabeth.Brosch at thomson.com
Sent: Tuesday, March 07, 2006 12:24 PM
To: kickstart-list at redhat.com
Subject: RE: TFTP Open Timeout
Thanks for the suggestion Chip but this didn't make any difference.
I see traffic between my dhcpd/Kickstart server and client by displaying
the output from tcpdump.
I can't seem to get around this issue. It appears it is some sort of
timeout either with dhcp or tftp or possibly both.
Like I stated earlier, I have this new subnet that I am attempting to
Kickstart with no luck.
Thanks anyway.
-----Original Message-----
From: kickstart-list-bounces at redhat.com
[mailto:kickstart-list-bounces at redhat.com]On Behalf Of Shabazian, Chip
Sent: Tuesday, March 07, 2006 1:22 PM
To: kevin at ev1servers.net; Discussion list about Kickstart
Subject: RE: TFTP Open Timeout
We have seen this issue on some switches due to the time it takes for
the NIC to negotiate. What version are you using, and is portfast
turned on at the switch?
You can force the speed and duplex by appending the following to the
kernel boot parameters:
ksdevice=eth0 eth0_ethtool="autoneg=off speed=100 duplex=full"
Adjust as appropriate.
-----Original Message-----
From: kickstart-list-bounces at redhat.com
[mailto:kickstart-list-bounces at redhat.com] On Behalf Of Kevin Landreth
Sent: Tuesday, March 07, 2006 9:10 AM
To: Discussion list about Kickstart
Subject: Re: TFTP Open Timeout
TFTP uses UDP, so my first assumption would be a firewall, due to the
timeout
error. However, I just noticed when you do a getent services tftp it
reports
69/tcp, which is wrong, its 69/udp
- Kevin L.
Elizabeth.Brosch at thomson.com wrote:
> I am having problems with TFTP. I receive PXE-E32: TFTP open timeout.
>
>
>
> I see the DHCP server issues
>
> DHCPDISCOVER
>
> then
>
> DHCPOFFER
>
> then
>
> DHCPREQUEST
>
> then
>
> DHCPACK
>
>
>
> Then on the client, you see TFTP attempting to start but it dies with
> timeout.
>
>
>
> I have been doing this for quite a while with no issues. The only
> difference with my configuration now is we have a new subnet. I had
> issues with DHCP but worked through it when I found the correct
> configuration for dhcpd.conf.
>
>
>
> But now I get TFTP timeout.
>
>
>
> Has anyone encountered this that could share some information with me?
>
>
>
> Thanks in advance.
>
>
>
>
>
> Liz Brosch
>
> TSH System Services
>
> Philadelphia, PA 19104
>
> office: (215) 386-0100 x1144
>
> cell: (267) 784-9166
>
>
>
>
>
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>
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