User Documentation

The u-link Remote Access Service consists of the 3 components…

▪ Web accessible u-link Portal servers to manage the customer specific account.

− Device configuration representing the real devices located in the field.

− User configuration representing the Service PCs which do a remote access.

− Providing the VPN based pass-through connection between a Service PC and a

Router / Remote network.

▪ Main u-link components: Web server (Portal access), VPN server, Database server

and the WWH server (world wide heartbeat).

▪ By creating/registering an u-link system account for each account the Portal server

instances will be created exclusively.

▪ Windows-based PC

▪ Uses Software ‘u-link VPN client’ for secure communication with remote devices via

the u-link VPN server.

▪ Browser based access to u-link Portal to select the target devices for remote access.

▪ Currently MS Windows versions 7, 8, and 10 are supported.

▪ Weidmüller Router located in the remote network providing the access to connected

devices at LAN port.

▪ Useable models: All Weidmüller Router variants except model E-SR-2GT-LAN-FN (for

routing/NAT/security applications, does not support VPN)

▪ u-link is supported from firmware version 3.0.2 (Update downloadable).

▪ Routers already installed in Security/Firewall applications can be extended to use

u-link additionally.

Chapter 1 – Overview u-link Remote Access Service

1.2 How the u-link Remote Access Service is working / Involved hard and

software components

Factory network

Machine network

IP-Device 1

IP-Device 2

IP-Device l

Weidmüller Industrial

Security Router

Internet