[ipxe-devel] iPXE DHCP failure

Michael Brown mbrown at fensystems.co.uk
Wed May 18 23:21:16 BST 2011


On Wednesday 18 May 2011 15:19:22 Michael Cirineo wrote:
> So how can I ensure that iPXE uses #define BOOTP_FL_BROADCAST 0x8000 when
>  doing DHCP?  I'm experimenting with a broadcast response instead of
>  unicast, that's how my other PXE clients are set up.

If you're using ISC dhcpd, you can try forcing it to send a broadcast response 
using

  always-broadcast on;

in /etc/dhcpd.conf.

The default behaviour of iPXE is to request a broadcast response only if the 
chaddr isn't capable of holding the current link-layer address (i.e. if the 
network interface is IPoIB rather than Ethernet).

Michael


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