Hi,

I am using two instances of ptp4l on two computers. One is running as
slave and the other as master following initial series of annoucement
messages.

Despite the fact I can see, using WireShark, DelayRequest UDP frames
sent by the slave passing on the network, following the SYNC and
FOLLOWUP frames from the master, the master never responds to them by a
Delay_Response. The slave remains in the Listenning state.

If I change the transport protocol from L4 (UDP) to L2 (ethernet), then
the exchange seems normal and the whole set of SYNC, FOLLOWUP,
DELAY_Request and Delay_Response are visible on the network.

Any idea of misconfiguration that may result in this abnormal behaviour
with L4 ?

Eric



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