User Documentation

▪ The Weidmüller u-link Remote Access Service allows an easy and secure access of Service

PCs to remote local Ethernet networks via the Internet.

▪ The VPN-based access of a Service PC to remote networks will be provided by the web-based

u-link Portal service (VPN server) and a Weidmüller Router (VPN client) located

in a remote target network.

▪ The u-link VPN server is used as a meeting point and connects a Service PC to

a Router (both running as VPN clients) to allow an encrypted data communication

between the PC and remote Ethernet devices connected to the LAN port of the

Router.

▪ Using the u-link VPN server as public accessible meeting point both a Service PC

and a Router only need to establish an outgoing VPN connection to the Internet

which usually is allowed and compliant to IT security requirements.

▪ For secure data integrity the u-link Remote Access Service uses for each u-link system account

its own server and database instances (secure separation of u-link accounts).

▪ The data communication between an account specific u-link VPN server and remote clients

(Service PCs and Router) is based on a certificate-secured OpenVPN communication

(Encryption RSA 2048, x509 certificates).

▪ Based on customer requirements the u-link Remote Access Service is offered with following

variants:

▪ Entry Version (free of charge, no time limitation of use)

▪ Versions Standard 150/300/500/ and more (Extended features, buyable use license, 1 year

license validity)

▪ When using a “Standard Version” additional VPN licenses can be purchased to use more

than 3 simultaneous VPN pass-through connections of a Service PC to a remote

router/network.

Chapter 1 – Overview u-link Remote Access Service

1.1 General information