What is uPNP in my wireless?

What is uPNP? What will happen if I enabled it?Also, please do explain about pvc0,1,2....
hallhillAsked:
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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
What rouer brand and model do you have?

uPNP is a method by which your router allows applications on client computers to dynamically open ports for outgoing and  incoming traffic as required.  This saves you the time of having to do it manually.

It is also not recommended, IMO, as rogue programs(such as trojans) that may have be installed on your computer can open ports for internet access.
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hallhillAuthor Commented:
I am using DSL 2640T.

What is Open Port in simple English?
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hallhillAuthor Commented:
If I disable it, will it affect the printer,file sharing and internet sharing?
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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
Think of the ports as "channels".  Various computer applications use these to send a receive data from your computer.  There are TCP and UDP ports. Every computer can communicate on over 65 535 ports for TCP and UDP.

I am not familiar with the router. but please visit I believe the dlink site for the support manual.
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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
It could, if you allow your computers to share and file print over the internet.  

I would suggest you diable uPNP and manually configure ports as you deem necessary.
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hallhillAuthor Commented:
Thanks

What sort of applications will require enabling the UPnP?I have seen in other site stating that network printer will require it.Usually,if I am not mistaken,the driver of the printer will be installed in both server and client PCs.How will UPnP be helpful in this?

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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
There are many applications that "could" require a port for internet access.  uPNP is justa method by which you allow ANY application to confiugre your router to permit internet access over a specific port.

I do not believe uPNP is a good way of managing things.  It's like say you have a lock on your front door but you give everybody a key for entry.
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