Reserved Ports and Firewall Exceptions

Reserved ports and firewall exceptions required by Xbox One.

Reserved ports

The ports listed in the following table are reserved, and should not be used in a call to bind.

Currently reserved port numbers
Port	Protocol
23	TCP
24	TCP
443	TCP
445	TCP
500	UDP
1900	UDP
2375	TCP
2667	TCP
2869	TCP
3074	UDP
4016	TCP
4020	TCP
4201	TCP
4211, 4221, 4222, 4223	TCP
4500	UDP
4600 and 4601	TCP and UDP
5050	UDP
5355	UDP
8872	TCP
9080	TCP and UDP
10247	TCP
40003	TCP and UDP
40980	TCP
42980	TCP
42981	TCP
49152–57343, inclusive	TCP and UDP

Developers writing tools for Exclusive Partition apps that use sockets to communicate with a dev kit should create appropriate socket descriptions (with *Debug usages) and device association templates in their app manifests for the socket connections to be used by those tools. If this is impractical or impossible, then tools may use ports 4600 and 4601. Those ports are reserved on retail consoles, but are designated for tool communications on dev kits. Developers using those ports for tools do not need to add those ports to their app manifest in order to use them during development. Note that these ports are not supported for Shared Partition apps.

Firewall exceptions

Xbox One requires the following firewall exceptions:

• Allow outbound TCP traffic on ports 80 and 443.
• If you use P2P multiplayer or Xbox Live Compute for non-HTTPS functionality via the Xbox Secure Sockets API, open outbound UDP 500, 3544, and 4500. You should expect accompanying inbound connections and dynamically selected ports for P2P, just as there are when you use P2P with Xbox 360.
• Due to the dynamic nature of the server configuration used for Xbox Live services, it is not possible to filter access to those services by IP address. You should filter by DNS (“*.xboxlive.com”).
• If you want to tweak NAT classification of your network you can use the following script on a development PC on the same network as your development consoles to gather further diagnostic information: https://gallery.technet.microsoft.com/scriptcenter/NAT-Detection-Script-b404cab2.

See also

Xbox Live Services API Reference

Windows.Xbox.Networking Namespace

Windows.Networking.Sockets Namespace