Merlin Firmware Port Forward

[jafwiz]

I need to port forward with this Merlin firmware but I am confused? The first line is the name the second is
source target, the third is port range, the forth is local ip which has a drop down with my computer listed so I know to use that, fifth is local port, sixth is protocol. to port forward what needs to be in those spots?

 

[yk101]

I need to port forward with this Merlin firmware but I am confused? The first line is the name the second is
source target, the third is port range, the forth is local ip which has a drop down with my computer listed so I know to use that, fifth is local port, sixth is protocol. to port forward what needs to be in those spots?

Source target - is the public IP of the computer you want to connect FROM. If you don't want to limit that, then either put 0.0.0.0 or just leave it empty.

Port range - is the port on which you want router to listen for incoming connections.

Local port - is the port on which your computer will accept connections for the service you are opening.

Protocol- TCP/UDP is the protocol used by the application you are exposing.

Hope this helps!

 

[jafwiz]

Is there a way I can check to see if the port is open?

 

[jafwiz]

used a port checker and it says port closed? I entered Port Range 4242, local ip is 192.168.1.128, local port is 4242, protocol is both?

 

[yk101]

If you go back to port forwarding screen, do you still see your entry? If yes, please post a screenshot.

 

[jafwiz]

Here is the screen shot

 

[yk101]

Ok, that looks about right. Please SSH into the router as an admin, and run the following command:

iptables -L

Post the results.

 

[jafwiz]

I don't know what or how to do that could you explain? I do have a VPN setup on this router.

 

[yk101]

Instructions depend on operating system you are using. For Windows, download putty. Launch it, then connect to admin@[your router IP] using port 22. When prompted, enter admin password. Then go ahead and type the iptables command I gave you earlier.

 

[jafwiz]

I hate to sound stupid but I downloaded Putty and launched is says Host name or ip address I put in the router ip and it says connection refused am I doing something wrong?

 

[yk101]

Please logon your router web interface, go to Administration->System tab and enable SSH access for LAN. Then try putty again.

 

[jafwiz]

Ok getting further when I run putty I enter 192.168.1.1 and it goes to a cmd type window. It says login as ? What do I use here I tried admin and it asks for password I don't have an admin user so no password?

 

[yk101]

What is the user you used to logon to the web ui? Use the same user and password.

 

[jafwiz]

ok got a list

 

[yk101]

It looks like you have the rule, but the destination appears to be in the incorrect format. (this is the line that has "Jaf" in it).

 

[jafwiz]

I chose that from the list and also tried to enter my computer ip not from the list and it still shows JAF not destination? Any way to correct this?

 

[yk101]

What is JAF? Is that the name of your target?

 

[jafwiz]

Jaf is the Computer name

 

[yk101]

Ok, go back to the UI, delete what you have in there for port forwarding. Save. Then re-enter the same parameters, but this time use TCP only for protocol. Then let's look at the output of iptables -L

 

[jafwiz]

It was in there as TCP I tried Both and still port checker and still no good