Any chance of getting this simple fix of /etc/services into 11.1,
or at least into CURRENT ?

  Mark




Date: 2016-10-07 16:49
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213276

            Bug ID: 213276
           Summary: port 502 is officially mbap (Modbus Application
                    Protocol), /etc/services claims outdated
                    asa-appl-proto
           Product: Base System
           Version: 11.0-STABLE
          Severity: Affects Only Me
          Priority: ---
         Component: standards
          Assignee: freebsd-standa...@freebsd.org
          Reporter: mark.marti...@ijs.si

Created attachment 175500
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=175500&action=edit
patch for /etc/services: ports 502 and 802

The file /etc/services states that port 502 belongs to an asa-appl-proto
service, but this is not true. The port is officially (IANA) assigned
to "Modbus Application Protocol" since 2014-06-10. Apparently it was
previously assigned to Cisco, but no longer is. Also a related port 802
entry is missing in /etc/services.

http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=modbus

mbap    502 tcp Modbus Application Protocol [modbus.org] [Dennis_Dube]
2014-06-10
mbap    502 udp Modbus Application Protocol [modbus.org] [Dennis_Dube]
2014-06-10
mbap-s 802 tcp Modbus Application Protocol Secure [modbus.org] [Dennis_Dube] mbap-s 802 udp Modbus Application Protocol Secure [modbus.org] [Dennis_Dube]

See also: http://seclists.org/nmap-dev/2015/q3/373
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