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<div class="moz-cite-prefix">On 09/09/2012 10:06 AM, Sten Carlsen
wrote:<br>
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<blockquote cite="mid:504CA256.9000104@s-carlsen.dk" type="cite">
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Fixing a broken ISP implementation by breaking the client
implementation?<br>
<br>
I guess that is a fair deal? Maybe I should try that with some of
the public utilities?<br>
<br>
<br>
<div class="moz-cite-prefix">On 09/09/12 15:54, Mr Dash Four
wrote:<br>
</div>
<blockquote cite="mid:504C9F96.4020702@googlemail.com" type="cite">
<br>
<blockquote type="cite">You should not blame the software for
your ISP having a rubbish network. <br>
</blockquote>
I don't, but I expect that every decently written piece of
software to have a "plan B" which could be deployed - swiftly -
if "plan A" doesn't seem to work. That, evidently, isn't
happening with dhclient. <br>
<br>
<blockquote type="cite">Incidentally, did you ever figure out
why the client was not renewing by broadcast at around 7/8 of
the lease time which is what I assume it's doing now ? <br>
</blockquote>
A couple of factors, one being that the server specified in the
server ID given in the lease acknowledgement is not responding
to direct requests, which is what dhclient was doing (instead of
switching to either a broadcast or the dhcp agent giving the
lease in the first place). <br>
<br>
Another thing I've changed were these pre-defined periods - by
default the lease renewal takes place when about 1/2 of the
lease is still valid, and rebinds when 7/8 of that lease time
has lapsed, give or take a randomly pre-selected interval. That
may seem fine with short leases, but when the lease is long, the
gap between 1/2 and 7/8 is quite a big one, so that is another
thing I altered. It is all working now, so I am content with
using dhclient for the time being. My "plan B" (yes, I do have
one) was to switch to dhcpcd, if I couldn't fix the above
problems. <br>
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<br>
<pre class="moz-signature" cols="72">--
Best regards
Sten Carlsen
</pre>
</blockquote>
You are obviously from the world of academia - where theory is more
important<br>
than a working system.<br>
<blockquote cite="mid:504CA256.9000104@s-carlsen.dk" type="cite">
<pre class="moz-signature" cols="72">
No improvements come from shouting:
"MALE BOVINE MANURE!!!"
</pre>
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<br>
<br>
<div class="moz-signature">-- <br>
Stephen Clark<br>
<b>NetWolves</b><br>
Director of Technology<br>
Phone: 813-579-3200<br>
Fax: 813-882-0209<br>
Email: <a class="moz-txt-link-abbreviated" href="mailto:steve.clark@netwolves.com">steve.clark@netwolves.com</a><br>
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