[cups] Issue source port reuse

[Michael Sweet]

LPD requires that the client use a "secure" source port (traditionally between 721 and 731, although any port from 1 to 1023 is acceptable in general) so the Linux client will reuse available ports (only one is in use at any given time, but consecutive jobs could use the same port). You can disable this by adding "?reserve=none" to the end of the device URI on the Linux print queue. This is documented at:

    http://www.cups.org/documentation.php/network.html


Sent from my iPad

> On Oct 22, 2014, at 4:27 AM, burnkey <burnkey at hotmail.com> wrote:
> 
> Dear all,
> 
> I am facing an issue with TCP source port reuse between a Linux and a Windows using lpd. Tcp_tw_reuse and tcp_tw_recycle are not enabled in the Linux kernel.
> 
> Does anyone has faced this issue previously ? Is there any parameters in cups to avoid this.
> 
> Thanks & Best regards
> 
> L.
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