bootp and ignore dhcp?
dhcp1 at thehobsons.co.uk
Sat Jul 28 06:41:20 UTC 2007
Chuck Anderson wrote:
> > I was hoping to get the server to only respond to bootp requests, and
>> ignore all dhcp requests. I don't own the network, and thus any dhcp
>> responses on it (even to the clients I knew about) can be problematic.
>> I'd rather they get their dhcp responses only from the official dhcp
>> server, not me.
>This is an unrealistic goal. DHCP is based on the BOOTP packet format
>and uses the same transport layer identifiers, so there is no real way
>to separate the functionality of the two on the same network subnet.
>There may be hackish ways to do it, but I wouldn't recommend it.
I agree, I can't think of a way to get the server to do exactly NOT
what it is designed to do ! I suppose it should be possible to
program a firewall rule to reject DHCP packets, IIRC they have a
different BOOTP message type field to BOOTP packets.
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