使用外部IP地址访问内部网络资源 [英] Accessing internal network resource using external IP address

问题描述

如何使用其外部IP地址访问内部资源（电子邮件服务器/ FTP服务器），但是从网络中访问？

情况是用户数量有笔记本电脑，每周工作几天。我不希望他们每次进入办公室时都必须将连接详细信息从217.xxx更改为10.0.0.x，然后再次返回。

我有外部访问工作，所以他们可以在路上使用217.xxx IP连接，但是当他们在办公室时它不起作用。

我们有一个路由器提供NAT访问网络和不同的FTP，电子邮件等服务器。

解决方案

这是什么DNS是为您的外部DNS提供名称的217.xxx地址，而您的内部DNS返回10.0.0.x IP地址。客户端通过主机名访问资源，而不是IP地址，并完成。

How is it possible to access an internal resource (email server / FTP server) using its external IP address but from within the network ?

The situation is that a number of users have laptops and work out of the office several days per week. I don't want them to have to change the connection details from 217.x.x.x to 10.0.0.x every time they come into the office, then back again when they leave.

I have external access working, so they can connect using the 217.x.x.x IP when on the road, but it doesn't work when they are in the office.

We have a router providing NAT access to the net and different servers for FTP, email etc.

解决方案

This is what DNS is for - your external DNS provides the 217.x.x.x address for the names, while your internal DNS returns the 10.0.0.x IP address. Clients access resources by hostname, not IP address, and it's done.

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