Solved How do FPS's open UDP ports?

November 29, 2011 at 10:05:00
Specs: Windows 7
How do FPS's open UDP ports without needing to configure the router to forward them?

I never have to forward ports from my router to my PC. Every game i have
somehow manages to open the UDP ports it needs without me having to
configure my router.

Yet when i check to see if those ports are open (prior to starting the programs)
they always come back as blocked or closed. Now I'm currently working on a
UDP Internet program and need to know how to do the same thing - open ports
on a router without having to make the customer configure their routers.

I'm THINKING that other programs start with a TCP/IP connection on the desired
port and that opens the UDP port. Is this the answer or is there another method used?


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#1
November 29, 2011 at 11:14:57
http://en.wikipedia.org/wiki/Univer...

You may find more answers in the Upnp forum in the link above

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#2
November 29, 2011 at 11:27:12
What Can Connect to My Device With UPnP And Do I Need it On?
UPnP is designed for the LAN, so in other words it only works inside 
your network, do you use any UPnP enabled services for sharing 
media or something like that? If not I suggest turning it off. The 
UPnP does not do anything for XBL or anything outside your 
network.

I had already looked into UPnP. it doesn't resolve over the public cloud.


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#3
November 29, 2011 at 12:16:36
✔ Best Answer
Does not appear you read my link. You are not going to find answers if you close your thought processes.

"NAT traversalOne solution for NAT traversal, called the Internet Gateway Device Protocol (IGD Protocol), is implemented via UPnP. Many routers and firewalls expose themselves as Internet Gateway Devices, allowing any local UPnP control point to perform a variety of actions, including retrieving the external IP address of the device, enumerate existing port mappings, and add or remove port mappings. By adding a port mapping, a UPnP controller behind the IGD can enable traversal of the IGD from an external address to an internal client."

Your last post doesn't even reflect your own statement in post #1
"Every game i have somehow manages to open the UDP ports it needs without me having to configure my router. "

So it is beyond the lan isn't it?

It appears to me you want to know how UPnP works which is why I suggested the UPnP forums.

You do understand this is not exclusive to UDP but also includes TCP?

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Related Solutions

#4
November 29, 2011 at 13:00:56
Gotcha.

it appears an answer i got earlier somewhere else with UPnP was completely wrong about WAN translation.

After some more checking i found your answer on UPnP is correct and now gives me the gateway to the solution i need

http://msdn.microsoft.com/en-us/lib...

Thanks :)


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#5
November 29, 2011 at 13:08:30
Excellent. I am glad you found the info you needed. Best of luck.

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