[ipxe-devel] DHCP OFFER random port

Michael Brown mcb30 at ipxe.org
Tue Feb 11 15:31:31 UTC 2020

On 04/02/2020 16:32, Slater, Jeremy wrote:
> I am having issues between dnsmasq and isc dhcp server.  Dnsmasq is 
> providing the DHCP OFFER back to iPXE on a random source port (instead 
> of 67), which appears to be an OK thing to do.  However, it looks like 
> the dhcp client in iPXE is expecting the OFFER to come back on the 
> outgoing port.  Can someone confirm if this is true, and if so this is 
> probably a bug right?

This behaviour has been present in iPXE since 2008:


Do you have dnsmasq configured to act as a ProxyDHCP server (offering 
only PXE boot options) instead of as a DHCP server (offering addresses)?


More information about the ipxe-devel mailing list