Re: [Linuxptp-users] Linux PTP Traffic Not Showing Up On Slave Only Machine.

[Joey D. <dig...@gm...>]

Thanks for the suggestion Omar. I tried those settings and it still did not
work for me.

I can get everything working using a plain old ethernet NIC with an
ethernet connection amd software timestamping.

As you mentioned Richard, I will investigate the Mellanox side of things
and see if there is an issue there.

- Joey D.

On Dec 18, 2017 10:25 AM, "Richard Cochran" <ric...@gm...>
wrote:

> On Fri, Dec 15, 2017 at 12:09:02PM -0500, Joey DiGiorgio wrote:
> > I see the following (and I only see these after I start the slave.
> That is strange.       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> You should the the master's traffic from the slave even without
> ptp4l.
>
> If there is no firewall on the slave, then I can only guess that
> mellenox is doing something funny with incoming multicast frames.
>
> Remember that tcpdump uses promiscuous mode and ptp4l uses a regular
> socket.
>
> Thanks,
> Richard
>