GE PACSystems* RX3i, Secure Deployment Manual

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Chapter 3. Communication Requirements
GFK-2904D July 2018 13
Application Layer Protocols
PROFINET devices are capable of acting as a server, responding to requests sent via any of several different
protocols. They are also capable of acting as a client, sending requests to other servers using any of several
different protocols. The exact set of protocols that are enabled/used will depend on which modules are
installed, how they are configured, and the details of the application program that is running.
Protocol Server TCP Port Destination UDP Port
ETHERNET Type
(non-IP protocol)
DCE/RPC
34964 on server
>1023 on client
HTTP 80
HTTPS 443
PROFINET DCP 0x8892
PROFINET I/O 0x8892
MRP 0x88e3
SNMP v1
161 on server
>1023 on client