如何检测端口转发/映射的需求以及如何实现? [英] how to detect needs of port forwarding /mapping and How to Implement it ?

问题描述

大家好，

我正在使用套接字开发p2p应用程序，我想在路由器后面连接远程计算机.

>>端口转发是解决此问题的唯一方法吗?
>>如果是这样，那么如何动态检测端口转发/映射的需求?
>>如何实施?


谢谢..
请帮助..

Hi everyone,

I am developing a p2p application using socket and i want to connect the remote computer behind the router.

>> Is port forwarding the only way to solve this problem ?
>> If so then how to detect dynamically needs of port forwarding /mapping ?
>> How to Implement it ?


thanks..
Please help..

推荐答案

端口转发是我所知道的唯一方法.我不知道您是否可以动态检测到它.端口转发是通过配置路由器来完成的:

http://en.wikipedia.org/wiki/Port_forwarding [ http://portforward.com/ [

Port forwarding is the only way I know of doing this. I don''t know if you can detect it dynamically. Port forwarding is accomplished by configuring your router:

http://en.wikipedia.org/wiki/Port_forwarding[^]

http://portforward.com/[^]

通常，端口转发是在防火墙中处理的-不在您的应用程序中.您不能依靠运行软件防火墙的人员，即使他们这样做，也无法保证它将成为您的程序支持的人员.除此之外，如果应用程序自行更改我的防火墙设置，我会认为这是一个巨大的安全违规行为，并且会一发不可收拾.

Typically, port forwarding is handled at the firewall - NOT in your application. You can''t rely on people running a software firewall, and even if they did, you can''t guarantee it will be the one that your program supports. Beyond that, I would consider it a HUGE security violation - and would be downright pissed off - if an application changed my firewall settings on its own.

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