User Documentation
Page 62
Check the status of the u-link connection (Step 12)
➢ Select tab ‘State’.
▪ After successful registration the Router is initiating the
WWH communication to the u-link (Status ‘Online’).
▪ Notes about WWH
The WWH function (World Wide Heartbeat) is an outgoing
TLS/SSL connection (TCP/443, like HTTPS) to the u-link
WWH server and is independent from a VPN connection
which will be used for remote access.
The Router sends via this peer connection periodically a
„Still alive“ message to the WWH server. The WWH server
then signalizes the u-link Web server that the Router is
alive. This status is displayed in the Service Desk of the u-
link Web portal.
Via the WWH connection it is possible to activate/de-
activate the VPN tunnel of the Router remotely from the u-
link Web portal server.
The encrypted WWH connection automatically is started
when the Router is powered on, having an Internet
connection and is registered to a Router object in a u-link
account.
▪ Activating the VPN tunnel via menu “State”
Additionally to the most used methods to initiate a VPN
tunnel (remotely via u-link Portal or by 24 VDC digital input)
the VPN connection can be activated / de-activated via
button ‘Connect’.
4.6 Configuration of the Router
Chapter 4 – Setup of a remote access scenario (Configuration Router)
Router Web interface
(Menu u-link / tab State)
Status:
• WWH online
• No VPN connection to the
u-link VPN server
This icon is representing
the WWH online status of
the Router.
Now the Router is ready for initiating a remote access session!
Copyright © 2020 Weidmüller Interface GmbH & Co. / All rights reserved. Reproduction without permission is prohibited.V1.5.1 / Oct, 2020
u-link Web portal
Menu ‘Service Desk’
Activate / De-activate a
VPN tunnel via button
‘Connect / Disconnect’.