On 21 Jul 2003, Shantanu Kumar wrote:
> On Mon, 21 Jul 2003 S.Muthukumar wrote :
> >
> >Sure there will be confusion. The broadcast depends on the
> >application, if
> >the application knows about the DHCP server address, then there
> >will be
> >no broadcast packets. One DHCP server per subnet is good.
>
> Well, I guess there won't be any confusion as long as the
> IP-ranges and leases are
> well defined. DHCP uses broadcasting because the client doesn't
> have an IP
> address. If both parties have known IP addresses, they don't need
> broadcasting,
> do they? :-)
I think you got confused here, if the client has the DHCP server address,
then it sends and arp query to get the dhcp server mac address and sends
the packet directly and while dhcp server is replying to the client, it
knows the mac address of the client from the request packet and sends the
packet directly, so there is no broadcast involved eventhough the client
has not got the IP :-)
Oh yes, I almost mixed that up with diskless clients, in which case, broadcasting is
the key to IP discovery. Thanks for pointing out. :-)
Regards, Shantanu
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