Ignoring DHCP settings

[mcb30]

(2015-05-06 02:53)Scotty Wrote:  Editing those settings (either via config or using set commands) when I run

chain tftp://servername/pxelinux.0

it just times out.

However - when I get the next-server and filename settings in DHCP set to match the settings of the server and pxelinux.0 it works.

It seems that the existing settings from the DHCP server are still interfering.

In which scope are you editing the settings? The reconstructed DHCP packets passed to pxelinux.0 (or to any other PXE NBP) give priority to netdevice-specific settings, since the PXE API is implicitly requesting the DHCP packet for a single network device. This means that a setting in the "net0" scope will take priority over a setting in the top-level scope.

You probably want to do something like:

Code:

#!ipxe
dhcp
set netX/next-server 192.168.0.1
set netX/filename bootfile
chain tftp://${next-server}/pxelinux.0

Michael