Re: [Boost-users] Server application won't bind to ports on IP address other than my internal ones

Subject: Re: [Boost-users] Server application won't bind to ports on IP address other than my internal ones
From: Gavin Lambert (boost_at_[hidden])
Date: 2019-01-13 23:09:47

On 13/01/2019 06:22, Leon Mlakar wrote:
> Generally, you cannot reach a computer behind the router that uses NAT 
> from the outside using the externally visible IP address. Unless you 
> configure the router properly.

Another key misunderstanding that sounds like has been happening:

If you are on a computer "inside" the network, you cannot access 
anything that is also "inside" the network by using the external IP 
address.  (It's not completely impossible, but routers are normally not 
configured to route traffic like that.)

The external IP only exists outside of the network.  If you want to test 
it, you must test it from outside of the network.

When you're inside the network you have to use the internal IP instead.