VDB session information in the Management Console and logs shows localhost for Client Host Name with a JDBC connection.
Client Host Name: localhost
Client Hardware Address: 4CBB58502284
IP Address:
Security Domain: teiid-security

In the server.log with org.teiid set to TRACE it displays below for session:

DEBUG [org.teiid.SECURITY] (New I/O worker #2) Logon successful, created session: sessionid=DW9hzUw5P1ob; userName=teiidUser@teiid-security; vdbName=deb_pg; vdbVersion=2; createdTime=Thu Jan 17 08:15:44 CST 2019; applicationName=JDBC; clientHostName=localhost; clientHardwareAddress=4CBB58502284; IPAddress=192.168.x.x; securityDomain=teiid-security; lastPingTime=Thu Jan 17 08:15:44 CST 2019