On Tuesday 07 July 2020 03:36:22 N wrote:

> > Could the delay be caused by DHCP?  If the computer does a DHCP
> > query and does not find a DHCP server it will re-try perhaps many
> > times.   The solution would be "don't do that" and assign a fixed IP
> > address.
>
> I have assigned static IP address and even so some kind of messages
> are sent periodically, it work well enough maybe even with margin but
> they are not supposed to be there.
>
> In an older version I had some kind of IP rule restricting access to
> ohters.
>
> > Has anyone actually tried using the same Ethernet for normal uses
> > and connected to Mesa at the same time or did you just assume it
> > would not work?       I wonder if a managed switch could make it
> > work using a VLAN or some other trick involving level of service
> > priority
>
> I have tried and it run well but are uncertain but guess there is
> nothing restricting Ethernet messages for other purposes interrupting
> these for machine. Guess the only good possibility here is two
> Ethernet cards and maybe some kind of IP rule to restrict access to
> others.
>
I have seen situations where the arp daemon was issueing "who has" 
queries frequently when that address isn't properly known to the system.
wireshark should catch the offender in any case.
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>


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