How do I open ports for routers?

Scenario 1: Single Port:
By default, your router will block all incoming connections (into your network) and allow all Outgoing connections to the Internet. In some cases, you may need to allow some connections into your network (for Example: Using the Remote Desktop Application). To do this, you must open ports on your router.

Please launch your browser and enter http://dlinkrouter.local or http://192.168.0.1 into the address bar. Then login and follow the steps below:
Step 1: Click Feature -> Port Forwarding
DIR-878 Setup

Step 2: Click Virtual Server and Add Rule
DIR-878 Setup

DIR-878 Setup

Step 3: Create your rule (FTP server as example), then apply
- Name- Enter a name for the rule (i.e. Web Server 1)
- Local IP: Specify the IP address of the device you are opening the port for
- Protocol: Specify the traffic type (TCP or UDP) - Note: If you are not sure, choose BOTH
- External/Internal Port: Enter the port number you want to open (i.e. 21, for FTP)
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Step 4: Click Save After finish adding your rule.
DIR-878 Setup

Scenario 2: Multiple Ports:
Please launch your browser and enter http://dlinkrouter.local or http://192.168.0.1 into the address bar. Then login and follow the steps below:
Step 1: Click Feature -> Port Forwarding
DIR-878 Setup

Step 2: Enter the TCP port numbers you want to open:
- Name- Enter a name for the rule (i.e. Web Server 1)
- Local IP: Specify the IP address of the device you are opening the port for
- TCP Port: Enter the TCP port numbers you want to open 
- UDP Port- Enter the UDP port numbers you want to open 
Note: You can enter the ports in multiple different ways- Range (50-100) Individual (80, 68, 888) Mixed (1020-5000, 689)
DIR-878 Setup

Step 3: Click Save After finish adding your rule.
DIR-878 Setup

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