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List:       busybox
Subject:    Re: ping (was: [PATCH] add IP check functionality to udhcpc)
From:       Denys Vlasenko <vda.linux () googlemail ! com>
Date:       2007-11-26 7:37:39
Message-ID: 200711252337.40032.vda.linux () googlemail ! com
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Hi Christian,

On Sunday 25 November 2007 03:59, Cristian Ionescu-Idbohrn wrote:
> Could you please comment on this:
>
> On Fri, 23 Nov 2007, Cristian Ionescu-Idbohrn wrote:
> > Unless I'm missing something obvious, I have dificulties figuring out
> > how (on the same command line) to follow both rfc recommendations (the
> > 60s and the 10s).  If the dhcp-server doesn't answer, we try 4 times and
> > wait 60s before we do another attempt _and_ if it answers but gives us a
> > dupplicated ip-address, decline it and wait 10s before we repeat the
> > cycle.
>
> Is my reasoning wrong?

udhcpc has many options already. I want to be a bit conservative here.
Adding an option later is easier than adding it now and removing it later -
users will start to use it and expect it to stay.

Maybe it is needed. So far I am not convinced. Current code
will use 20 seconds delay for both cases. Should not be a problem
for any reasonable network, even 2 Mbit old wireless one.

This is an insignificant deviation from RFC recommendation.

As you know, other dhcp sprograms survive with much worse things,
like wrong sizes of option field. ;)
--
vda
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