How to Port Forward Rational Clearcase
PUREVPNpfcgnatHow to Port Forward Rational Clearcase

Rational ClearCase is a set of software tools that help manage source code and other assets during the software development process. If you are looking to port forward Rational ClearCase, this comprehensive guide can help you.

Port forwarding is used to allow remote access to a computer or device that is behind a firewall. When port forwarding is properly configured, the firewall will know to allow incoming traffic on the specified port and forward it to the correct computer or device on the network.

Requirements to Port Forward Rational Clearcase

Just before you begin with the process of port forwarding, make sure you have the following things:

  • Downloaded and installed the Rational Clearcase server.
  • The IP address of your router.
  • IP address of your gaming device.

TCP and UDP ports of Rational Clearcase for your gaming device as mentioned in the section below.

Step-by-step guide on how to port forward Rational Clearcase

Now that you have the above details noted down, you can move to the next stage of Rational Clearcase port forwarding:

  1. On your web browser address bar, type your router’s IP Address/Default Gateway.
  2. Log in with your router’s credentials (username and password) to view your router’s firmware settings.
  3. Navigate to the port forwarding section of your router.
  4. Click on Port Forwarding.
  5. Enter the IP address of your gaming device in your router in the correct box.
  6. Put the TCP and UDP ports of the Rational Clearcase server in the boxes in your router. The default Rational Clearcase port number is 371. And then click the apply button.
  7. And you’re done. Restart your router to let the changes take effect.
  8. Once your changes take effect, now you can host a Rational Clearcase server and let your friends connect to it as well. To let them connect to it, you need to provide them the hostname you are using, along with the port number. For example, ‘’.

Rational Clearcase ports needed to run

To play Rational Clearcase online and create a server without any interruptions, you’ll have to allow access to certain ports on your firewall. The default Rational Clearcase ports are:

TCP Port:371
UDP Port:371

Quickly and safely open ports using PureVPN

Opening a port shouldn’t be complicated. With the Port Forwarding add-on, it’s as simple as 1, 2, and 3!

Ports to forward on devices

Ports to run on PC:

TCP Port:371
UDP Port:371

How to open ports behind CGNAT

What if your ISP performs CGNAT? Most ISPs perform CGNAT (Carrier-grade Network Address Translation) to conserve bandwidth and assign a single IP address to multiple users connected to the same internet network. However, CGNAT makes it difficult for you to open ports on the router. 

To get around the CGNAT issue, you can use the Port Forwarding add-on to bypass this problem and port forward routers without hassle. 
Here’s more information on how to use PureVPN’s Port Forwarding add-on and bypass CGNAT in a few clicks.

Open Ports Behind CGNAT

PureVPN’s Port Forwarding Add-on

A secure way to open all ports

To most people, port forwarding is quite a demanding task. For starters, every router has a different console, which often makes it difficult to navigate to specific settings.

Secondly, you won’t always be able to open Rational Clearcase Online ports on your router if your ISP restricts the ports. Yes, you heard that right! ISPs are notorious for blocking ports due to security reasons. If ISP isn’t the reason behind a blocked port, then perhaps it could be your operating system’s firewall.

Well, you can eliminate all these problems and enjoy smooth online gaming on all your desired systems with PureVPN’s Port Forwarding add-on. Through the Port Forwarding add-on, you can allow all ports, disallow all ports, and allow specific ports.


Is port forwarding legal?

If you want to allow others to connect to your WiFi network, first you need to understand port forwarding. Although it may sound complex, configuring port forwarding is a breeze and perfectly legal. Plus, it won’t mess with your router settings in any way.

Can I forward ports on a VPN?

NAT firewalls slow down your internet connection, but VPN port forwarding can get around that. It’s useful for several reasons which include increasing your download speed, accessing your computer when you’re away from home, and establishing a direct connection with a gaming server.

What IP do I use for port forwarding?

To use port forwarding, you must first set a static internal IP address (ipv4) for your device. By default your device ipv4 address is automatically dynamic instead of static, meaning it constantly changes and port forwarding won’t be able to identify your device within your home network.

Have Your Say!!

Join 3 million+ users to embrace internet freedom

Signup for PureVPN to get complete online security and privacy with a hidden IP address and encrypted internet traffic.