View single post by phil1155
 Posted: Saturday Mar 10th, 2018 02:21 pm
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phil1155

 

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Hi chiu,
So with more investigation.. it is CSM app that does renew every milliseconds ish the discover frame on 30303 when the other GCE (brand) device is on the network. So this update frequency does not allow me to change the Comfort IP address.
I used another discovery application from GCE also on 30303 and this one sends only one discovery paquet and all devices replies once only. So the issue seems for me between the CSM app and the reply that specific device sends back to CSM.I cannot see in the sniffing what would be the issue. The discovery frames sent by the two app ( CSM and GCE) are slightly differents.
Note that on this subnet I have 15 other devices including 3 other units from the GCE vendor ( I am assuming that their different module are using the same tcpIP modules.
I also disconnected the switches and router on my network and the problem was still there.
Not a big issue if during regular operations, this call to port 30303 is not used.
I will later make a capture on 30303 to check that there is no discovery frame storm.
Strange.

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