<div>There's two issues here:</div>
<div> </div>
<div>1. The services that are running on the XO should be listed somewhere on the wiki, especially all services that accept incoming network connections or make connections.</div>
<div> </div>
<div>2. The XO makes connection requests to services that may not exist. This may not be a problem in some cases, since the overhead of a failed connection attempt is very low, and in the case of things like an NTP request an "occasional" connection still keeps the clock accurate enough for our purposes.<br>
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<div class="gmail_quote">On Jan 29, 2008 1:56 AM, Mikus Grinbergs <<a href="mailto:mikus@bga.com">mikus@bga.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">I have a G1G1, which communicates via a local LAN to a "relay"<br>system, which communicates to the internet. The server facilities<br>
(*just* for the XO - not needed by the "regular" systems on my LAN)<br>I've now set up in the "relay" station are minimal (e.g., for DNS).<br> The result is that many XO requests are not fulfilled by my<br>
"relay" system (for instance, a separate dialog may be needed -<br>between the "relay" system and a *real* server out on the internet).<br><br>I was looking at a trace of the packets on my local LAN. In the<br>
case of DNS, the XO issues three "Type 28" requests (which my<br>minimal "relay" station does not support), before issuing a "Type<br>01", to which it eventually does get an answer. In the case of NTP,<br>
the XO issues "scattershot" requests to all server addresses it was<br>able to extract [but receives no responses, because it tries to<br>contact them directly, rather than going through the 'proxy'<br>function in my "relay" system].<br>
<br><br>My conclusion: The tcp/ip function in the XO makes a number of<br>assumptions as to the type (and timeliness) of the external SERVICES<br>it expects to have been provided. I would have been happier if I<br>had known about these beforehand, rather than having to discover<br>
what does or does_not work in the environment I currently have.<br>[Might some setups in a target country be as minimal as mine?]<br><br>mikus<br><br>_______________________________________________<br>Networking mailing list<br>
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