Network Boot Problems/Computer won't communicate with Ubuntu/FOG
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Well First you need to figure out what is giving out DHCP addresses on your network. Unless you configured FOG to handle DHCP it more than likely is not doing it. Go to the command line on one of the computers and do an ipconfig /all and look for the DHCP server line and it should tell you the IP address of your DHCP server. Once you have that its part of the DHCP config that hands our the boot server IP and the pxelinux.0 file on boot.
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Here we go
[url=“/_imported_xf_attachments/0/172_ip.JPG?:”]ip.JPG[/url]
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What device is 10.0.0.2? I would think it was your router as its your default gateway too. You need to configure the DHCP scope with the boot server IP and the pxelinux.0 file to get them to PXE boot.
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I agree with djm79. Find out what that device is and if it supports dhcp options for next server and boot file name. If the device doesn’t support the options or you just can’t change its configuration, there is always proxydhcp.
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I think it is our CipaFilter(so the students don’t go on naughty sites). And it does support DHCP every computer in the school has a DHCP address with the exception of the teacher computers, they are unblocked
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Who manages that device? Get the to add the dhcp options for next-server and boot filename.
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Our Network Administrator.
What do we have to change in the CIPA Filter to get it to work?
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[QUOTE] Get them to add the dhcp options for next-server and boot filename.[/QUOTE]
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OK. I will let Administrator know. Thanks for the help
If he says that’s not the problem, then what??
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Bonk him on the head or get a new administrator?
You can only have one DHCP server in a subnet, otherwise they enter a race condition to see who answers first, and you can get IP address lease overlaps. So FOG cannot be the DHCP server if any other device is doing DHCP.
If you cannot, or will not modify your existing DHCP server to give out the required PXE boot options, then you can implement ProxyDHCP. ProxyDHCP does not give addresses, but listens for DHCP requests that need PXE boot information and responds with the necessary data, without interfering with your existing DHCP server.
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I have no idea what OS is on the CIPA Filter and sniffing around on the web makes it seem to me that it’s a linux based proprietary OS.
If you can get to a dhcpd.conf file on it the options you would be looking for would be as follows:
next-server 10.0.175.162;
filename “pxelinux.0”;Note the filename end of .0 is a zero.
If you find you can’t get to it then you could use proxydhcp as chad-bisd suggested… which you can run from your fog server.
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THANKS!
How do I add those files to my FOG server??
You people are a huge help
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You don’t have to add them to your FOG server, you add them to your DHCP options so your machines know where to look to PXE boot from and the file to use. Or you can do the proxydhcp option that chad-bsid said. This is the link for setting up a proxydhcp [url]http://www.fogproject.org/wiki/index.php/Setting_up_ProxyDHCP[/url]
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Would it be easier if I made my FOG server give out IP addresses like a DHCP server rather than messing with our actual DHCP server?
Thanks
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Well if you already have a device doing DHCP you could cause a “race” situation were they are both trying to hand out address. The proxy DHCP setup would allow FOG to hand out the PXE boot options to computers without messing with the DHCP device that is doing it now. Does someone else manage the device handing out addresses? If so ask they to add the boot options to the DHCP scope. IF not then proxy is the way to go.
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Well, the CIPA fiter does not allow us to make any sort of changes. Now what???
We looked and looked and it did not let us do anything
Thanks
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Time for a dhcp proxy. I’m going to take a wild stab in the dark here and assume you are running FOG on Ubuntu. If not, the info will still be handy at least.
Try this: [url]https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP[/url]
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OK…I was frustrated so I reinstalled FOG on my computer…tried everything again with no luck. We attempted to make changes to our DHCP device with no luck also.
So…does someone want to take control of my computer and see what I have wrong? Help me please!!!
Thanks
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Can you post your configs here? I’m not saying I’ll be able to help as I dont use a DHCP Proxy myself, I have full control over my DHCP setup so I’ve no need of one, but there are plenty of people on this forum with loads of experience that may spot the problem straight away.
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What is the best way to show you how I have it set-up?