Network requirements
A firewall opening is sometimes needed to allow for multi-user communication with Vrex. Here you can find everything your IT department needs to allow for that.
For multi-user communication, Vrex needs permission to communicate towards our synchronization servers. By providing the following information to your IT department they will be able to open up for multi-user collaboration with Vrex.

| Source | Destination | Port | Use/reason |
| Client network | eu1.com.vrex.vixel.no (18.194.34.130) | UDP5055 and UDP5056 | Sync and audio communication with other meeting participants |
Typical security mechanisms that may prevent the communication:
- Firewall
- VPN
- Proxy
More detailed information here.
No manual file-sharing is required. No original CAD-models are distributed to any meeting participants.