From: Stephen Hemminger <shemminger@vyatta.com>
To: Sri Ram Vemulpali <sri.ram.gmu06@gmail.com>
Cc: linux-netdev <netdev@vger.kernel.org>
Subject: Re: Question on DHCP
Date: Tue, 12 Oct 2010 18:45:43 -0700 [thread overview]
Message-ID: <20101012184543.55ebf503@nehalam> (raw)
In-Reply-To: <AANLkTikTKL2JzmHKUrraOoNdqV1=0e_r+EuvBTgURjUz@mail.gmail.com>
On Tue, 12 Oct 2010 21:33:25 -0400
Sri Ram Vemulpali <sri.ram.gmu06@gmail.com> wrote:
> Hi All,
>
> I have very basic stupid doubt. Can anyone help to resolve this.
>
> DHCP, is used for dynamically configuring IP address, mask, MTU, DNS
> domain, .... for a host. DHCP is a application layer protocol, but the
> values it configures are related to IP layer. How come DHCP can
> configure when its data packet in embedded in to IP datagram, which
> are disparate layers. I am little confused. Please clarify. Thanks.
>
DHCP client uses UDP to send broadcast packet and find the nearest
server. The Linux DHCP client ends up using a AF_PACKET socket because
it wants to seem MAC address of server.
--
next prev parent reply other threads:[~2010-10-13 1:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-13 1:33 Question on DHCP Sri Ram Vemulpali
2010-10-13 1:45 ` Stephen Hemminger [this message]
2010-10-13 7:31 ` Stefano Salsano
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