[etherlab-users] ethercat filtering

Mike O'Connor mike at oeg.com.au
Sat Feb 11 11:24:45 CET 2017


Hi Sriram

So it sounds like you have the cabling wrong, Ethercat networks must be
separated on a layer 2 network. Wired correctly you should never see the
Ethercat frames on both networks.

Mike

On 10/02/2017 10:59 PM, Sriram V wrote:
> Hi Mike,
>
> I have 2 ethernet ports. I am broadcasting ethercat packets on the
> network. This is received by both the ports.
> I want to allow ethercat packets ONLY to received by my raw socket
> which is bound to one port.
> On the other port - I want to allow ethernet packets with IP header
> only (non ethercat packets).
>
> Is this possible.
>
> Thanks,
> Sriram
>
> On Fri, Feb 10, 2017 at 12:31 PM, Mike O'Connor <mike at oeg.com.au> wrote:
>> On 10/02/2017 4:59 PM, Sriram V wrote:
>>> Hello,
>>>
>>> I wanted to check if i can allow only ethercat packets to be passed to
>>> app layer?
>>>
>>> Basically, I want to process only ethercat packets.  Therefore, i want
>>> to kernel to filter out basic IP packets.
>>>
>>> Regards,
>>> Sriram
>>> _______________________________________________
>>> etherlab-users mailing list
>>> etherlab-users at etherlab.org
>>> http://lists.etherlab.org/mailman/listinfo/etherlab-users
>> The Ethercat packets are actually raw Ethernet frames, so I think you
>> need to explain what your issue is and from there the list might be able
>> to help.
>>
>> Mike
>>




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