If your company uses a firewall allowlist for restricted network access, please refer to the following details to ensure seamless connectivity for your service.

Webinar.net uses WebRTC for the presenters to do presentations.

There are three parts in WebRTC:

For signaling, we use secure WebSocket (wss://), which requires 443 port.
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Please take a look at this article for more info on discovering and establishing a P2P connection.

For most firewall or proxy systems, webinar.net recommends specifying an allowed list of DNS names for webinar.net services to make outbound connections. The list of webinar.net domains currently includes (but is not limited to) the lists below.

The Presenter Console requires the following ports open for the Presenter Servers.

Server IP Addresses

RTMP servers are available via the rtmp:// protocol.

Domains

CDN and application APIs requires the following ports for the listed domains.

Domains

The Presenter Console requires the following port for accessing these TCP Tunneling Servers. This is only required if TCP Tunneling is enabled. TCP Tunneling is only required when the firewall does not allow UDP ports 16384-32768.

You can read more about TCP Tunneling here.

Server IP Addresses

For further assistance, contact us through chat or send us an email at support@webinar.net.