# Network Requirements \| Low-Latency Streaming
<a name="low-latency-network-requirements"></a>

IVS low-latency streaming relies on RTMP(S), SRT, and WebRTC protocols for the transmission of media and data. To ensure a seamless experience, the destinations and ports listed below must be accessible to broadcast with a given protocol. Any restrictions on inbound or outbound traffic to these destinations may disrupt the functionality of IVS low-latency streaming.

Note: The information in this document does not apply when streaming content to IVS over AWS PrivateLink. For more information, see [Private Ingest](private-ingest-ll.md).

## Ports
<a name="low-latency-network-requirements-ports"></a>


| Protocol | Destinations | Port | 
| --- | --- | --- | 
| RTMPS | \*.live-video.net | TCP:443 | 
| Insecure RTMP | \*.live-video.net | TCP:1935 | 
| SRT | \*.srt.live-video.net | TCP:9000 | 
| WebRTC | \*.live-video.net | TCP:4443 (SDP exchange)<br />UDP:32768-61000 (ephemeral ports for WebRTC) | 

## IP Ranges
<a name="low-latency-network-requirements-ip-ranges"></a>

The data plane for IVS low-latency streaming is global. To broadcast to IVS, it is important that all subnets for the service IVS\_LOW\_LATENCY in [ip-ranges.json](https://docs.aws.amazon.com/vpc/latest/userguide/aws-ip-ranges.html) must be accessible, regardless of their region or your chosen AWS Region. Streamers may be connected to any subnet automatically. See [Global Solution, Regional Control](https://docs.aws.amazon.com//ivs/latest/LowLatencyUserGuide/what-is.html#what-is-aws) for details.

For a list of all IVS\_LOW\_LATENCY subnets, run the following `jq` commands:

**ipv4**

```
curl https://ip-ranges.amazonaws.com/ip-ranges.json | jq -r '.prefixes[] | select(.service=="IVS_LOW_LATENCY") | .ip_prefix'
```

**ipv6**

```
curl https://ip-ranges.amazonaws.com/ip-ranges.json | jq -r '.ipv6_prefixes[] | select(.service=="IVS_LOW_LATENCY") | .ipv6_prefix'
```