Virtual Class servers use the following ports:
| Protocol | Port(s) | Description |
| TCP/IP | 80 | HTTP |
| TCP/IP | 443 | HTTPS |
| UDP | 16384-32768 | Encrypted WebRTC audio, video, and screen share media stream (DTLS-SRTP) |
Depending on your region, if your institution's firewall is blocking access to virtual classes, you can white list servers with the following domain name suffix.
Canada
*.rna2.blindsidenetworks.com
United States
*.rna1.blindsidenetworks.com
Europe
*.reu1.blindsidenetworks.com
Asia Pacific
*.roc2.blindsidenetworks.com
North America TURN servers
In addition, to improve the success and speed of WebRTC media connections, we recommend allowing the following network traffic
- Outgoing and return UDP packets to port 3478 (STUN and TURN)
- Outgoing TCP connections to port 443 (TURN over TLS)
to the following STUN and TURN servers listed below:
| Hostname | IP Address |
| turn1.rna1.turn.blindsidenetworks.com |
70.38.71.8 174.142.34.40 174.142.34.41 174.142.34.42 174.142.34.43 2607:f748:1200:116::1:1:0 2607:f748:1200:116::1:1:1 |
| turn2.rna1.turn.blindsidenetworks.com |
67.205.89.112 72.55.149.176 72.55.149.177 72.55.149.178 72.55.149.179 2607:f748:1200:115::1:2:0 2607:f748:1200:115::1:2:1 |
| turn4.reu1.turn.blindsidenetworks.com |
178.62.204.52 206.189.242.91 2a03:b0c0:2:d0::85:8001 2a03:b0c0:2:d0::85:8002 |
| turn5.reu1.turn.blindsidenetworks.com |
157.230.77.225 46.101.180.168 2a03:b0c0:3:d0::58:1001 2a03:b0c0:3:d0::58:1002 |
| turn6.rna1.turn.blindsidenetworks.com |
64.227.25.38 165.227.252.138 2604:a880:400:d0::b62:b001 2604:a880:400:d0::b62:b002 |
| turn7.rna1.turn.blindsidenetworks.com |
159.203.35.139 2604:a880:cad:d0::36:1 2604:a880:cad:d0::36:2 |
| turn8.rna1.turn.blindsidenetworks.com |
142.93.190.81 45.55.124.139 2604:a880:800:c1::150:5001 2604:a880:800:c1::150:5002 |
| turn9.rna1.turn.blindsidenetworks.com |
69.55.54.22 206.189.253.12 2604:a880:400:d0::17f1:d001 2604:a880:400:d0::17f1:d002 |