PXG 900 User's Guide - Firmware Version 4.3 - 1/9/20176747808 BACnet/IP UDP161 SNMP UDP162 SNMP UDPThe following ports are open and necessary for proper PXG operation:Port Number Protocol/Use TCP/UDP7011 Eaton's Mercury Websockets TCP7012 Eaton's Mercury Websockets – Secure via TLS TCP8181 Eaton's Mercury for communications with PXI Software TCP8443 Eaton's Mercury – Secure via TLS for communications with PXI Software TCPThese ports cannot be disabled or their port numbers changed.Browser Specific NotesIf you use HTTPS with Internet Explorer 10 you must enable TLS version 1.2 support in the browser. ThePXG does not support SSL version 3.Restart your browser after loading the certificate to avoid any problems caused by the browser caching data.SettingsNetwork Access Tab - Controlling Access to Various Protocol ServersBACnet/IPUnder BACnet/IP, you should only enable those services that you will be using. Leave everything else disabled. Forthose services that you do enable, make sure that you also enable Trusted Hosts for each and then maintain theminimum number of trusted hostnames/IP addresses that you need. Note that you must have Trusted Hostsenabled in order to save any trusted host machine names/IP addresses you've added.Modbus TCP Server ConfigurationUnless you have a specific need to enable Write Commands, make sure that this is Disabled.SNMPUnless you require SNMP features, it is recommended that you leave the overall support turned off by uncheckingSNMP support in the Access Control section of the Network Access tab. If you require SNMP support, v1 and v3features are independently configurable.