Method 1: Router Admin Page (DHCP List)
The router's DHCP client list is the most reliable source — it shows every device on your network with its current IP address and often the manufacturer name.
Log into your router
Open a browser and navigate to 192.168.1.1 or 192.168.0.1 (the exact address is printed on the router label). Log in with your router's admin credentials.
Find the DHCP client list
Look for a section called DHCP, Connected Devices, Client List, or LAN. On TP-Link routers: Advanced → Network → DHCP Server. On ASUS routers: Network Map. On Netgear: Attached Devices.
Identify your camera
Look for a device entry matching your camera's manufacturer name (e.g., "Hikvision", "Reolink", "Dahua", "Amcrest"). If names are not shown, power cycle the camera and compare the DHCP list before and after — the new entry is your camera.
Method 2: SmartRTSP ONVIF Auto-Discovery (Easiest)
SmartRTSP's built-in ONVIF scan is the fastest and easiest method. The app sends a WS-Discovery broadcast to your local network; any ONVIF-compatible camera responds with its IP address and stream capabilities — no manual IP lookup needed.
- 1. Ensure your iPhone is on the same Wi-Fi as the cameras
- 2. Open SmartRTSP and tap the scan / + icon
- 3. Select ONVIF Scan — cameras are discovered within seconds
- 4. Tap a camera to add it — the IP address and stream path are filled in automatically
Works with Hikvision, Dahua, Reolink, Amcrest, Annke, Lorex, Axis, Bosch, and most professional IP cameras. Tapo and Eufy have limited ONVIF support.
Method 3: Manufacturer Discovery Tools
Most major camera brands provide a free desktop utility that scans the local network and finds cameras even when their IP is unknown. Run these on a computer connected to the same network.
| Brand | Tool Name | Platform |
|---|---|---|
| Hikvision | SADP Tool | Windows / macOS (free) |
| Dahua / Amcrest | ConfigTool | Windows / macOS (free) |
| Reolink | Reolink App / Client | iOS, Android, Windows, macOS |
| Axis | AXIS IP Utility | Windows (free) |
| Uniview | Uniview EZTools | Windows (free) |
| Any brand | Angry IP Scanner | Windows / macOS / Linux (free) |
Method 4: Network Scanner App on iPhone
Install a network scanner app
Download a free network scanner from the App Store (search "network scanner" or "IP scanner"). These apps scan your local subnet and list all connected devices with their IP addresses and open ports.
Scan your local network
Run a full subnet scan. The app probes each address in your subnet (e.g., 192.168.1.1 through 192.168.1.254) and lists all responding devices.
Look for devices with port 554 open
RTSP cameras listen on port 554. Filter the scan results for devices with port 554 open — these are almost certainly your cameras. Note the IP addresses and enter them in SmartRTSP.
Method 5: Camera App or Status Display
Some cameras and NVRs display their IP address directly without needing a separate tool:
- •NVR/DVR systems: Many NVRs have an LCD screen or OSD menu that shows network settings including the current IP address.
- •Reolink cameras: The Reolink app automatically discovers cameras on your local network and displays their IP in the device settings screen.
- •Tapo cameras: Open the Tapo app, select the camera, and check Settings → Device Info for the current IP address.
- •Camera web UI: If you can already access the camera's web interface, the current IP is displayed in Network settings.
Keep the IP Stable with DHCP Reservation
Once you find your camera's IP, prevent it from changing by setting a DHCP reservation (also called a static lease) in your router. This tells the router to always assign the same IP to that device based on its MAC address.
In the router's DHCP client list, find your camera's MAC address — a 12-digit hex code like AA:BB:CC:DD:EE:FF.
Go to the router's DHCP reservation or static lease settings. Create a new entry with the camera's MAC address and the IP address you want to assign permanently.
Save the reservation. The router will now always assign that IP to the camera — the RTSP URL in SmartRTSP remains valid permanently with no further updates needed.
Frequently Asked Questions
My camera IP changed after a router reboot — how do I prevent this?
What subnet is my camera on?
192.168.1.x or 192.168.0.x. Your camera will be on the same subnet as your phone. On iPhone: Settings → Wi-Fi → tap your network name → note the Router IP. Your camera is on the same subnet (same first three octets, e.g., 192.168.1.x).