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Marcin_g wrote:

> I write simple server (ServerSocket component in BCB6.0) application and I would like to check my IP address and/or internet connection accesibility. How to make this?

On the server computer start a browser and go to
http://whatismyip.com or http://checkip.dyndns.org
This will tell you your internet-ip.
Start your server listening on some port.

Now start a client on a machine somewhere on the internet
and let it connect to your internet-ip and the port your server
is listening on.

If there is a connection you are ready.

Otherwise - if you have a router- you first have to adjust your
router in such a way that it forwards request on
that specific port to your servercomputer on its intern-ip (or lan-ip).

Hans.

Thank you very much Hans, your solution is very good,  but I use Indy 
component: IdIPWatch. Its very simple. This component determines the online 
status and IP addresses for a computer. I know that, when computer is behind 
router IdIPWatch always returns C-class IP address (not global IP), but in 
my case I will always use global IP (DSL connection without router).

Uzytkownik "Hans Galema" <notused@notused.nl> napisal w wiadomosci 
news:4543c1e8@newsgroups.borland.com...
> Marcin_g wrote:
>
>> I write simple server (ServerSocket component in BCB6.0) application and 
>> I would like to check my IP address and/or internet connection 
>> accesibility. How to make this?
>
> On the server computer start a browser and go to
> http://whatismyip.com or http://checkip.dyndns.org
> This will tell you your internet-ip.
> Start your server listening on some port.
>
> Now start a client on a machine somewhere on the internet
> and let it connect to your internet-ip and the port your server
> is listening on.
>
> If there is a connection you are ready.
>
> Otherwise - if you have a router- you first have to adjust your
> router in such a way that it forwards request on
> that specific port to your servercomputer on its intern-ip (or lan-ip).
>
> Hans. 

"Marcin Golas" <golasm@poczta.fm> wrote in message
news:45448c08@newsgroups.borland.com...

> I use Indy component: IdIPWatch. Its very simple.

A little too simple.  It only works in environment that have a single IP
address only.  It is not designed for multi-homed environments.

> This component determines the online status and IP addresses for a
computer.

Only when the computer is directly connected to the Internet.  It does not
work when the computer gets its Internet connection through a router or
gateway.


Gambit

Thanks Gambit for additional information...

U�ytkownik "Remy Lebeau (TeamB)" <no.spam@no.spam.com> napisa� w wiadomo�ci 
news:45450442@newsgroups.borland.com...
>
> "Marcin Golas" <golasm@poczta.fm> wrote in message
> news:45448c08@newsgroups.borland.com...
>
>> I use Indy component: IdIPWatch. Its very simple.
>
> A little too simple.  It only works in environment that have a single IP
> address only.  It is not designed for multi-homed environments.
>
>> This component determines the online status and IP addresses for a
> computer.
>
> Only when the computer is directly connected to the Internet.  It does not
> work when the computer gets its Internet connection through a router or
> gateway.
>
>
> Gambit
>
> 

>Marcin_g wrote in Article <4543afc2$1@newsgroups.borland.com>
>with Subject: How to check my IP, on 28.10.2006 20:30:10
>
>
>
>Hi,
>I write simple server (ServerSocket component in BCB6.0) application and I would like to check my IP address and/or internet connection accesibility. How to make this?
>Please help.

hello,

i've wrote a small indy9-app (BCB6) for that:

download at http://home.arcor.de/elmar-baumann/tools/wanip.exe

it gets the IP via HTTP-Request on http://checkip.dyndns.org !


void __fastcall TForm1::GetIP()  //called by OnButtonClick
{
 int a,b;
 AnsiString line;

 try
 {
  line = IdHTTP1->Get("http://checkip.dyndns.org");
 }
 catch (Exception &exception)
 {
  MessageBox(0,exception.Message.c_str(),"Connection Error",MB_OK);
 }

 a = line.Pos("Current IP Address:");
 b = line.Pos("</body>");

 IP = line.SubString(a+19,b-(a+19));

 Edit1->Text = IP;
}


Regards

Elmar Baumann



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"Elmar Baumann" <elmar-nospam@anywhere.net> wrote in message
news:4546576a@newsgroups.borland.com...

> it gets the IP via HTTP-Request on http://checkip.dyndns.org !

There are other services, such as http://iplookup.flashfxp.com, that return
the IP in text format without any extra HTML that you have to strip off.


Gambit