- EtherNet/IP makes use of TCP port number 44818 for explicit messaging.
IANA Data
Name: EtherNet/IP-2
Description: EtherNet/IP messaging
Note: New contact added for port 44818 on 2008-02-01 This entry is an alias to "EtherNet-IP-2". This entry is now historic, not usable for use with many common service discovery mechanisms.