The port forwarding tester is a utility used to identify your external IP address and detect open ports on your connection. This tool is useful for finding out if your port forwarding is setup correctly or if your server applications are being blocked by a firewall.
The second, which is a bit more involved, uses UPnP to automatically do port forwarding if your router supports it. I think someone made a post about it earlier. Both methods have been tested and work out for everyone (including ios and android ppsspp players) Both methods also have dedicated 24/7 hosts.
Learn how to set up port forwarding on your Xfinity Gateway.

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Only one port forward can exist for every instance of that port. For example, if you forward port 3389 (used by the Remote Desktop remote access program) to a computer with the IP address 192.168.1.115, that same router can't also forward port 3389 to 192.168.1.120.

Port forwarding lets you connect to virtual machines (VMs) in an Azure virtual network by using an Azure Load Balancer public IP address and port number.

In this tutorial, you set up port forwarding on an Azure Load Balancer. You learn how to:

Create a public Standard load balancer to balance network traffic over VMs.
Create a virtual network and VMs with a network security group (NSG) rule.
Add the VMs to the load balancer back-end address pool.
Create a load balancer health probe and traffic rules.
Create load balancer inbound NAT port-forwarding rules.
Install and configure IIS on the VMs to view load balancing and port forwarding in action.

If you don't have an Azure subscription, create a free account before you begin.

For all steps in this tutorial, sign in to the Azure portal at https://portal.azure.com.

Prerequisites

An Azure subscription.

Create a Standard load balancer

First, create a public Standard load balancer that can balance traffic load over VMs. A Standard load balancer supports only a Standard public IP address. When you create a Standard load balancer, you also create a new Standard public IP address, which is configured as the load balancer front end and named LoadBalancerFrontEnd by default.

On the top left-hand side of the screen, click Create a resource > Networking > Load Balancer.

In the Basics tab of the Create load balancer page, enter or select the following information, accept the defaults for the remaining settings, and then select Review + create:

Setting	Value
Subscription	Select your subscription.
Resource group	Select Create new and type MyResourceGroupLB in the text box.
Name	myLoadBalancer
Region	Select West Europe.
Type	Select Public.
SKU	Select Standard.
Public IP address	Select Create new.
Public IP address name	Type myPublicIP in the text box.
Availability zone	Select Zone redundant.

Note

Make sure to create your Load Balancer and all resources for it in a location that supports Availability Zones. For more information, see Regions that support Availability Zones.

In the Review + create tab, click Create.

Create and configure back-end servers

Create a virtual network with two virtual machines, and add the VMs to the back-end pool of your load balancer.

Virtual network and parameters

Port Forward For Ppsspp Download

In this section you'll need to replace the following parameters in the steps with the information below:

Parameter	Value
<resource-group-name>	myResourceGroupLB (Select existing resource group)
<virtual-network-name>	myVNet
<region-name>	West Europe
<IPv4-address-space>	10.3.0.016
<subnet-name>	myBackendSubnet
<subnet-address-range>	10.3.0.024

Create the virtual network and subnet

In this section, you'll create a virtual network and subnet.

On the upper-left side of the screen, select Create a resource > Networking > Virtual network or search for Virtual network in the search box.

In Create virtual network, enter or select this information in the Basics tab:

Setting	Value
Project Details
Subscription	Select your Azure subscription
Resource Group	Select Create new, enter <resource-group-name>, then select OK, or select an existing <resource-group-name> based on parameters.
Instance details
Name	Enter <virtual-network-name>
Region	Select <region-name>

Select the IP Addresses tab or select the Next: IP Addresses button at the bottom of the page.
In the IP Addresses tab, enter this information:
Setting Value
IPv4 address space Enter <IPv4-address-space>
Under Subnet name, select the word default.
In Edit subnet, enter this information:
Setting Value
Subnet name Enter <subnet-name>
Subnet address range Enter <subnet-address-range>
Select Save.
Select the Review + create tab or select the Review + create button.
Select Create.

Setting	Value
IPv4 address space	Enter <IPv4-address-space>

Setting	Value
Subnet name	Enter <subnet-name>
Subnet address range	Enter <subnet-address-range>

Create VMs and add them to the load balancer back-end pool

On the upper-left side of the portal, select Create a resource > Compute > Windows Server 2016 Datacenter.
In Create a virtual machine, type or select the following values in the Basics tab:
- Subscription > Resource Group: Drop down and select MyResourceGroupLB.
- Virtual machine name: Type MyVM1.
- Region: Select West Europe.
- Username: Type azureuser.
- Password: Type Azure1234567.Retype the password in the Confirm password field.
Select the Networking tab, or select Next: Disks, then Next: Networking.
Make sure the following are selected:
- Virtual network: MyVNet
- Subnet: MyBackendSubnet
Under Public IP, select Create new, select Standard on the Create public IP address page, and then select OK.
Under Network Security Group, select Advanced to create a new network security group (NSG), a type of firewall.
1. In the Configure network security group field, select Create new.