ScreenBeam 1xxx-Series Network Port Requirements

Applies to: ScreenBeam 1000 EDU, 1000 EDU Gen 2, 1100 Plus, and 1100 FLEX. Feature availability varies by model and firmware version.

Overview

ScreenBeam 1xxx-Series receivers support multiple wireless display protocols, including BrowserCast, Miracast, AirPlay, and Google Cast. Each protocol uses specific network ports for device discovery, connection establishment, and audio/video transmission.

The following table outlines the network port requirements to help IT administrators configure firewalls, VLANs, and network security policies.

Important: Only the ports associated with the features and protocols enabled in your environment need to be permitted.

Network Port Requirements

Connection / Service	Receiver / Local Port	Client / Remote Port	Protocol	Purpose / Direction
BrowserCast
Signaling	49152–65535	443 (Cloud)	TCP -HTTPS/WSS	Outbound to Internet; to https://screenbeam.me
TURN	3478	3478	TCP
STUN / NAT Traversal	49152–65535	19302, 3478, 5349	UDP	Outbound; conditional*
WebRTC Media	49152–65535	49152–65535	UDP	Bidirectional audio/video
Miracast over LAN
mDNS Discovery	5353	5353	UDP	Bidirectional discovery
DNS	53	53	TCP/UDP	Name resolution
Connection Setup	7250	Any	TCP	Connection establishment
HDCP	25030	Any	TCP	Content protection
RTSP	Any	7236	TCP	Session control
RTP	24030	Any	UDP	Audio/video transmission
Hardware Cursor	19134	Any	UDP	Cursor data
UIBC	Any	50000	TCP	Touchback/input to client
AirPlay
mDNS Discovery	5353	5353	UDP	Device discovery
RTSP / AirPlay	47000	Any	TCP	Session control
RTSP / BLE	7000	Any	TCP	BLE-assisted connection
AirPlay Audio	7100	Any	TCP/UDP	Audio transmission
AirPlay Video	18000–18009	Any	TCP/UDP	Video transmission
Google Cast
mDNS Discovery	5353	5353	UDP	Device discovery
DNS	53	53	TCP/UDP	Name resolution
NTP/SNTP	123	123	UDP	Time synchronization
Cast Communication	8008	Any	TCP	Client/receiver communication
Cast Communication	8009	Any	TCP	Google Cast communication
HTTP	80	Any	TCP	Web communication
HTTPS	443	Any	TCP	Secure communication
SSDP	1900	Any	UDP	Service discovery
Media Streaming	32768–61000	Any	UDP	Audio/video transmission
System Services
NTP Time Server	123	123	UDP	Time synchronization

Network Considerations

BrowserCast

Supported on ScreenBeam 1000 EDU Gen 2, 1100 Plus, and 1100 FLEX.
Requires Internet access for signaling and session establishment.
UDP is recommended for optimal audio/video performance. TCP fallback may introduce additional latency.
Supports cross-VLAN connectivity when appropriate routing and firewall rules are configured.

Miracast

Miracast P2P uses Wi-Fi Direct and typically requires no corporate LAN firewall changes.
Miracast over LAN uses the existing network and requires appropriate client-to-receiver communication.

AirPlay and Google Cast

Device discovery may require mDNS forwarding when clients and receivers are on different VLANs.
Google Cast requires access to applicable Internet services.

Recommended Network Best Practices

Wired Ethernet: Connect ScreenBeam receivers to wired Gigabit Ethernet whenever possible.
Client Wi-Fi: Use 5 GHz Wi-Fi with at least 80% signal strength or equivalent.
Firewall Configuration: Permit the required ports between authorized client and receiver networks.
VLAN Routing: Ensure appropriate routing and discovery mechanisms are configured across VLANs.
Network Security: Keep receiver firmware updated and restrict management access to authorized administrators.

Additional Information: ScreenBeam Conference, CMS Enterprise, and other management services may require additional network ports not covered in this article.