D6200 Port forwarding issue (Port 500)

[SuperFagni]

Hi, I need to set up five different port forwarding services on my router, but unfortunately only 4 are working.

I tried to add a custom service for forward UDP port 500, but this port is present in one of the default services (VPN-IPSEC).

At this point I tried to set the rule using this service, but I received this error:

The specified port(s) are being used by other configurations...

I checked in all the tabs the error suggested, but I was not able to find anithing that explain why I cannot create a new rule...

I upgraded the firmware to the latest version, from V1.1.00.14 to V1.1.00.20, but nothing changed.

May someone help me?
Thanks in advance.

Luciano.

[DarrenM]

Hello SuperFagni

It seems to be a port reserved for VPN service I do not believe it can be opened for another service. I will check this.

DarrenM

[SuperFagni]

Hi DarrenM, thanks for your reply. 
I Think the same, port 500 is reserved for a predefined configuration, VPN IPSEC.

But I cannot set it also using this one, that's strange

If you find a way for add a port using the preconfigured service, or how to remove it from the list, it would be great.

Thanks again.

/Luciano