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IM 04L51B01-20EN
Security
This section explains the security features of the GX/GP/GM OPC-UA server.
Certificate Authentication
The GX/GP/GM does not perform certificate authentication. All clients are allowed to
connect.
The default certificate in the GX/GP/GM is used for the certificate exchange during the initial
connection.
GX/GP GM
Default certificate
OPC-UA client
Etherent
OPC-UA server
Connection allowed
User Authentication
The GX/GP/GM supports the following user authentication methods.
Authentication Method Description
Anonymous authentication No authentication
Username authentication Authentication by user n ame
1, 2
and password
1
1 The user name and password set with the GX/GP/GM security function are used.
2 If a user ID is in use with the advanced security function (/AS option), the OPC-UA user name is
“user name user ID” (a space between the user name and user ID) of the GX/GP/GM.
Which User Authentication Method Is Used
User authentication method that is used depends on the GX/GP/GM communication security
setting as follows.
Communication Security Setting User Authentication Method
Off Anonymous authentication and username authentication
Login Username authentication
OPC-UA Server (/E3) Specifications