PXE-E51: No DHCP or proxyDHCP offers were received.

[cnkpadobi]

question was looking at the wireshark file. Since it has so many ip address in it… was thinking it may be picking up my voip phones as well… Is that possible?

[Wayne Workman]

@cnkpadobi It depends on how your network is laid out. Typically VOIP is put on a different network and also a different vlan which makes it impossible to see unless you’re connected to the same vlan. The addresses you see are likely broadcasts from other systems. ARP requests, DHCP Discovery and Requests, WhoIs requests, ICMP traffic, and other things. This stuff is normal network chatter.

If you want to filter what you’re seeing, in the filter box in wireshark, put in bootp and you’ll only see DHCP related traffic.

[george1421]

@cnkpadobi said in PXE-E51: No DHCP or proxyDHCP offers were received.:

question was looking at the wireshark file. Since it has so many ip address in it… was thinking it may be picking up my voip phones as well… Is that possible?

The pcap file is fine. It looks like you have a busy networks. We specifically created the tcpdump line to only include dhcp, dpchproxy and tftp traffic. This all looks normal, the dhcp inform lines are just the devices (mainly windows) telling the dhcp server, hello I’m still here.

Voip phones do add a bit of information since voip phones some times uses the next server (dhcp option 66) to locate the pbx server. By enabing dnsmasq and pointing it to the fog server you “may” run into provisioning issues with your voip handsets. But if your dhcp server didn’t ahve option 66 set when you started your voip phones may not use auto provisioning. Even if we did run into a conflict with dnsmasq we can make them happy together.

Are all of your computers on the same subnet or do you have a network router in your environment? (i.e. you have multiple sites, or buildings on your campus where you have a router to segregate traffic?)

[cnkpadobi]

no not all we have 15 different location as well.

How do I setup for my network to received computers from the different subnet.

[george1421]

@cnkpadobi well that opens up a bunch more questions about your setup. The main one is, do you have a dhcp server at each site?

But to get this working, let’s focus at just one site and one subnet. When you introduce a router between the client computer and the dhcp server you’ll need to use a dhcp helper service. When the fog server is on a different subnet from the pxe booting computer the dnsmasq service will not hear the dhcp hello broadcast.

[cnkpadobi]

So DHCP is done is on each subnet.

The Main one we been working on is 192.168.0.x
One of the sub sites 10.10.1.x

However the subnet and the main site is connect by MPLS Network

[george1421]

@cnkpadobi said in PXE-E51: No DHCP or proxyDHCP offers were received.:

So DHCP is done is on each subnet.

Does each subnet have its own dhcp server or do you have a central dhcp server? I can say that deploying images across an MPLS circuit will be very slow.

[cnkpadobi]

Thanks for the help…

I have another question, I have one machine is that is on a continuous loop.
Seen pic for the last screen before it loop. This was a machine that I tested and took  image on before.

And will not get to the quick registration screen. Lastly is there a way to set the fog registration screen with the options to stay a bit longer?

[Wayne Workman]

I have another question, I have one machine is that is on a continuous loop.

Check Task Management in the web interface to see if there is a task for this device. Tasks don’t just go away. They will stay in task management until either they are canceled or completed.

Lastly is there a way to set the fog registration screen with the options to stay a bit longer?

Web Interface -> FOG Configuration -> iPXE Boot Menu -> Menu Timeout (in seconds):*

Also, any additional questions, please ask them in a new thread.

[cnkpadobi]

Can’t seem to get my machines to deploy image just keep rebooting… Not sure what i am doing wrong     

[george1421]

@cnkpadobi Lets make sure we have the same terminology. FOG is capable of deploying an image to a target computer, but the target computer does not boot correctly once deployed?

[Wayne Workman]

@cnkpadobi If this thread’s original problem is solved, please create a new thread.

[cnkpadobi]

This post is deleted!