TFTP Open Timeout

[Brandon Everhardt]

Ok, sorry in advance this is a mess.

I want to use RIS to deploy workstation images. I have set it up in a lab
numerous times with no issues. Due to budget constraints I dont have many
lab servers at my disposal. In my lab RIS and DHCP were always on the same
server. Prior to building the RIS box on the live domain, I wanted to make
sure RIS and DHCP could be on seperate boxes. What I discovered was that a
few options had to be set on the DHCP scope (66,67).

66 = Boot Server Hostname - which I set to the IP of the RIS server
67 = BootFilename - I pointed this to the ris share holding the startrom.com

Now upon booting my clients recieve an IP however fail on the tftp.

tftp error is "PXE-E32: TFTP open timeout"

If I move DHCP and RIS back to the same box RIS works fine. I have restarted
all the services and servers and verified they are running. What am I
missing here?

Thanks a bunch

Brandon

 

[Eitel Sanchez]

Verify that this is the line that you have in option 67:

OSchooser\i386\startrom.com

Also, check option 60.

Eitel

 

[NIC Student]

Hi Brandon,

It is not necessary to set options 66, 67, or 60 to separate RIS and DHCP
services. Our main RIS server is a member server only and is not a DC or
DHCP server. No options are set in the DHCP scopes and clients can RIS
across domain boundries and across routers. Those options are only
necessary if you want to RIS across routers and not update your routers for
the RIS server information. It can cause older PXE client nics to fail and
compromises security to a degree:

Using Dynamic Host Configuration Protocol Options 60, 66, 67 to Direct PXE
Clients to RIS Servers May Fail
http://support.microsoft.com/default.aspx?scid=kb;en-us;259670

If you separate the RIS and DHCP, you must also authorize the RIS server as
if it were a DHCP server by opening the DHCP snap in and authorizing the RIS
server by IP address.

If authorizing your RIS server doesn't fix the problem after you reverse the
DHCP scope info the write back with more details of how your network is set
up.