[ipxe-devel] how to ipxe on ALTERNATE_DHCP_PORTS_1067_1068

[Christian Nilsson]

Hi,
What you want is most likely a proxydhcp server instead, it listens on
port 4011 and only sends out the pxe options, while ip, dns, gateway
is still sent by the default dhcp server. Atleast this is what you
want if the default dhcp server does not provide any boot options.

Unfortunately I have no suggestions on proxyDhcp servers you might
want to try, but I myself would like to hear recommendations for
proxyDhcp servers and configurations in combination with iPXE and
"avoiding the boot loop"

If you still want to use port 1067,1068 with the standard dhcp
protocol (but breaking the spec), then you will have to modify the
ipxe sources.

/Christian

On Thu, Aug 18, 2016 at 10:10 AM, aromal victor <aromalvictor at gmail.com> wrote:
> Hi ipxe team,
>
>
>
> Need you guidance on making use of the feature - using alternate dhcp that
> runs on ports 1067 and 1068.
>
>
>
> Scenario:-
>
> I have an existing lab with DHCP which is maintained by IT and I have no
> control over it.
>
> I have a set of machines running in this network which I have to install
> Operating system. Hence I decide to use Clonezilla DRBL for this task using
> PXE boot.
>
> Since I already have an existing DHCP I wasn’t able to run DRBL on the same
> network since DRBL has it own DHCP running.
>
>
>
> Hence I went ahead and made changes to DRBL–DHCP to run on alternate ports
> 1067 and 1068.
>
>
>
> Clients which ask for IP under these ports will be assigned by DRBL-DHCP and
> rest will be assigned by LAB-DHCP.
>
>
>
> To make use of the DRBL-DHCP I used Etherboot at first and it was working
> fine.
>
> But the bottleneck is Etherboot don’t have support for all NIC's and you
> need to make different boot disk for different nics.
>
>
>
> Hence I choose ipxe which has support for all nics but I couldn’t find where
> to set or the command to use alternate DHCP that runs on ports 1067 and
> 1068.
>
>
>
> Could you please shed some light on this area which is most appreciated.
>
>
>
> Thanks in advance.
>
>
>
> AJ
>
>
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