WinCC OA 3.12 Proxy Configuration when a Public and Local Network is used…

Local IP/Name: vm1.rocworks-vm1.f1.internal.cloudapp.net
Public IP/Name: rocworks-vm1.cloudapp.net
Client will connect through the Public IP.

Server

[general]
dataHost = "vm1.rocworks-vm1.f1.internal.cloudapp.net"
eventHost = "vm1.rocworks-vm1.f1.internal.cloudapp.net"

[proxy]
server = "vm1.rocworks-vm1.f1.internal.cloudapp.net:4897"
server = "vm1.rocworks-vm1.f1.internal.cloudapp.net:4998"

Client

[general]
dataHost = "vm1.rocworks-vm1.f1.internal.cloudapp.net"
eventHost = "vm1.rocworks-vm1.f1.internal.cloudapp.net"

mxProxy = "vm1.rocworks-vm1.f1.internal.cloudapp.net rocworks-vm1.cloudapp.net:5678 cert"

Note: It is important that the proxy port is set! (even if this port is the default port of the proxy).

Client-Project/config/
host-cert.pem
host-key.pem
root-cert.pem