[sane-devel] "Scanimage" or "Sane" timeouts

Louis Lagendijk louis at fazant.net
Mon Apr 8 18:33:31 BST 2019

On Sun, 2019-04-07 at 11:53 +0200, Dr Rainer Woitok wrote:
> Olaf,
> On Saturday, 2019-04-06 21:13:07 +0900, you wrote:
> > ...
> > There is one thing that bothers me a bit though and that's the
> > occurence
> > of *six* timeouts, at least in Rainer's case.
> This may have to do  with my WiFi router:  it knows about  exactly
> seven
> devices,  including the  scanner/printer  and the laptop  on which I
> run
> "scanimage".
> Sincerely,
>   Rainer

No, this is the result of trying UDP traffic 3 times while the scanner
reports twice back to the discovery twice.

Looking at the traces that Rainer provided, it looks as if the router
is messing with DNS.... Hence we try  the wrong address twice abd get 3
time outs per attempt

BR, Louis

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