Getting proxyDHCP info from PXE stack

[alkisg]

I'm currently using pxelinux.0 with dnsmasq/proxyDHCP and I'm looking to replace it with undionly.kpxe.

Specifically, I'm looking to reuse the DHCP packet(s) that the PXE stack has in order to avoid issuing a second DHCP request.

Note that I had to use undionly.kkpxe for this, ipxe.pxe and undionly.kpxe didn't contain the DHCP packet in my case. Is that by design?

But even undionly.kkpxe didn't contain the proxyDHCP packet, it only had the info that the main DHCP server sent to the PXE stack.

I believe that the proxyDHCP packet should also be available, for example in pxelinux.0 I can use "IPAPPEND 3" to get the proxyDHCP server IP instead of the main DHCP server IP.

Is there any way to get the IP of the proxyDHCP server other than doing a second DHCP request? Thanks!