Secure Remote Access

Which domains are used?

In order to use the HOOC solution, communication to * domains must be possible.

Which ports are used?
  • Port 443/TCP outgoing (The connection must not go through a web proxy)
  • Port 53/UDP outgoing (All subdomains of must be resolvable)
Can the HOOC gateway be reconfigured remotely?

Yes, as long as the configuration mode is enabled.

The status “invalid IP” is displayed when establishing a connection

The network interface could not obtain an IP address from the remote network.

When establishing a connection, the status “reconnect” is displayed

Some security software may prevent the HOOC app from connecting to the HOOC cloud. This is because these softwares masquerade themselves as the HOOC cloud. The HOOC solution’s security features ensure that the HOOC app and HOOC gateways can only connect to the genuine HOOC cloud.

Remote programming of a SAIA PCD

The timeout setting is 250ms by default. When using mobile devices, the latency of the connection may exceed this value. Therefore it is recommended to increase the timeout (under SOCKET Setup -> Channel Settings) to 3000ms.

Are there any redirects to the CUBEVISION, Loxone, Gira Homeserver or Telenot app?

There are AppIds for iOS and Android.

App AppId for iOS devices AppId für Android devices
CUBEVISION 2 cubevision://
Loxone loxone:// com.loxone.kerberos
Gira Homeserver girahs://
Feller Homeserver girahs://
Telenot buildsec:// com.TelenotElectronic.comvisMCa
Network adapter Settings Windows

The network adapter used by the HOOC Client App has an automatic interface metric set as default. If a connection is established to a remote site using HOOC Secure Remote Access Service, the routing table is adjusted after the connection has been made. The interface metric can be set directly at the network adapter.

  • Navigate to Network and Sharing Center
  • Navigate to Change adapter settings
  • Navigate to properties of HOOC TAP0 or VPN24 via the shortcut menu
  • Select Internet Protocol Version 4 (TCP/IPv4) and click properties
  • In the tab general click on Advanced Settings

Using the elements Automatic metrics and Interface metrics, the routing can now be adjusted as follows:

Automatic Metrics Interface Metrics Data Traffic
- All traffic is sent through the VPN tunnel
9999 Data traffic to site via VPN tunnel, remaining data traffic locally

Confirming all windows with OK will apply the settings made. These changes must be made before establishing a connection to a remote site.