Is there any way to include dynamic info in the DHCP REQUEST?

[Fredrik Persson]

Perhaps I was not clear in my original question.

Yes, this is a linux system. I know that there is a script
(dhclient-script) that is run when the lease is aquired but I want to send
things to the dhcp server in the request. And the thing I want to send is
read (in ways not related to the question) from the system during boot.

On Thu, Jun 4, 2015 at 2:20 PM, Simon Hobson <dhcp1 at thehobsons.co.uk> wrote:

> Fredrik Persson <fredrik.p.persson at gmail.com> wrote:
>
> > Is there a way to include dynamic information in a "send" to the dhcp
> server?
> >
> > Something like this (I know that this does not work, but it gives an
> idea of what I am looking for):
> >
> > interface "eth0" {
> >     send <some parameter> $SOME_ENV_VAR;
> >     request subnet-mask,
> >             broadcast-address,
> > /* ... */
> > }
>
> Is this a Linux/Unix like system ? I know on GNU/Linux systems, the ISC
> client is typically called by a script, and also calls a script to
> configure the OS when it gets a lease or the lease expires.
> Depending on how dynamic the information needs to be, then you can
> configure the client to add customer options - and if you configure the
> scripts correctly, to do something with options returned. You may have
> issues changing the information - you may have to detect the change, and
> restart the client for it to take effect.
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20150604/e4fe444b/attachment.html>