IP Address and Port Requirements for WorkSpaces Applications User Devices
WorkSpaces Applications users' devices require outbound access on port 443 (TCP) and port 8433 (UDP) when using the internet endpoints, and if you are using DNS servers for domain name resolution, port 53 (UDP).
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Port 443 is used for HTTPS communication between WorkSpaces Applications users' devices and streaming instances when using the internet endpoints. Typically, when end users browse the web during streaming sessions, the web browser randomly selects a source port in the high range for streaming traffic. You must ensure that return traffic to this port is allowed.
Note
WorkSpaces Applications uses WebSockets on port 443.
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Port 8433 is used for UDP HTTPS communication between WorkSpaces Applications users' devices and streaming instances when using the internet endpoints. This is currently only supported in the Windows native client. UDP is not supported if you are using VPC endpoints.
Note
Streaming through interface VPC endpoints requires additional ports. For more information, see Tutorial: Creating and Streaming from Interface VPC Endpoints.
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Port 53 is used for communication between WorkSpaces Applications users' devices and your DNS servers. The port must be open to the IP addresses for your DNS servers so that public domain names can be resolved. This port is optional if you are not using DNS servers for domain name resolution.
WorkSpaces Applications client for Windows (version 1.2.1581 or greater), Mac (version 1.2.0 or greater) and Web Browser access automatically prefer to connect on IPv6 network than over IPv4 network. In case of adverse network conditions such as network latency the clients will fall back to IPV4 network.
