1. Detecting a internet connection
Hi!
Does anyone how how to detect if a internet connection has been established
via a dial-up? How do you detect if it has been disconnected?
Thanks in advance
Greg Harris
2. Re: Detecting a internet connection
- Posted by JJProg at CYBERBURY.NET
Aug 02, 1998
-
Last edited Aug 03, 1998
If you are wondering about detecting an internet connection for use with
winsock.ew, Windows 95 seems to automatically connect using Dial-Up
Networking. I set up the Internet properties in the Control Pannel so it
would automatically connect to my ISP. I am using IE 5.0 now, but it
works with IE 4.0 too. I am not sure about other versions.
Jeffrey Fielding
EU>Hi!
EU>Does anyone how how to detect if a internet connection has been established
EU>via a dial-up? How do you detect if it has been disconnected?
EU>Thanks in advance
EU>Greg Harris
3. Re: Detecting a internet connection
>Does anyone how how to detect if a internet connection has been >established
>via a dial-up? How do you detect if it has been >disconnected?
>Greg Harris
>jeffery replied win95 autodetects......
i'm not so sure that would be always reliable...
if it is reliable, cool...
if not, i may have another solution...
ping.exe
it comes default on most win95 installs, just like
telnet.exe....
you could use system() combined with ping, pipe it
to an output file, and dissect the output file looking
for "destination not reachable"... what to ping tho?
the users Internet Service Provider... if that doesn't
ping then you can pretty much assume they -arent- online.
at first i was thinking about pinging some 'big' place
that is -ahem- "always" working...no such place...
the ISP is almost goof proof tho...
here's the catch:
proxies...
myself? i'm on a proxy thru another machine and then onto
the net, so ping doesnt do anything but ping the proxy
which may or may not be online... cant (so far) break
out of the proxy to "ping-thru" to the real host i want
to ping... and since *I* am the network administrator, :)
and me and myself have already talked about the proxy issue,
there is so far no solution... now the proxy machine can
ping anywhere it wants... so if i need pinging, i ask my
wife (the system adminstrator here) :) to ping from her machine
and that solves that without my catching migraines trying
to fix something here that really doesnt need fixing...
hope this helps--Hawke'
4. Re: Detecting a internet connection
- Posted by Greg Harris <blackdog at CDC.NET>
Aug 02, 1998
-
Last edited Aug 03, 1998
Thanks to all who answered,
-----Original Message-----
From: Hawke <mdeland at NWINFO.NET>
To: EUPHORIA at LISTSERV.MUOHIO.EDU <EUPHORIA at LISTSERV.MUOHIO.EDU>
Date: Sunday, August 02, 1998 9:22 PM
Subject: Re: Detecting a internet connection
>>Does anyone how how to detect if a internet connection has been
>established via a dial-up? How do you detect if it has been >disconnected?
>>Greg Harris
>>jeffery replied win95 autodetects......
True, mine does the same thing. But it tried to dail out when I don't want
it too. ICQ has a net detection feature so that it can be loaded up when
Windows starts, but it doesn't try to connect to the server unless a dail-up
session is present.
>i'm not so sure that would be always reliable...
>if it is reliable, cool...
>if not, i may have another solution...
>ping.exe
>it comes default on most win95 installs, just like
>telnet.exe....
>you could use system() combined with ping, pipe it
>to an output file, and dissect the output file looking
>for "destination not reachable"... what to ping tho?
>the users Internet Service Provider... if that doesn't
>ping then you can pretty much assume they -arent- online.
>at first i was thinking about pinging some 'big' place
>that is -ahem- "always" working...no such place...
>the ISP is almost goof proof tho...
>here's the catch:
>proxies...
>myself? i'm on a proxy thru another machine and then onto
>the net, so ping doesnt do anything but ping the proxy
>which may or may not be online... cant (so far) break
>out of the proxy to "ping-thru" to the real host i want
>to ping... and since *I* am the network administrator, :)
>and me and myself have already talked about the proxy issue,
>there is so far no solution... now the proxy machine can
>ping anywhere it wants... so if i need pinging, i ask my
>wife (the system adminstrator here) :) to ping from her machine
>and that solves that without my catching migraines trying
>to fix something here that really doesnt need fixing...
>hope this helps--Hawke'
Thanks. Where I work in my mundane job, I can't get out of the firewall but
I can resolve hostnames.
You can check the IP address (should be 0.0.0.0) if not connected, but on a
network I have a IP address. So that blows that one. However if the IP
address is 0.0.0.0 it should reflect a dialup user right?
Thanks for the help.
Greg Harris
5. Re: Detecting a internet connection
- Posted by Irv <irv at ELLIJAY.COM>
Aug 02, 1998
-
Last edited Aug 03, 1998
Greg Harris wrote:
>
> Thanks. Where I work in my mundane job, I can't get out of the firewall but
> I can resolve hostnames.
> You can check the IP address (should be 0.0.0.0) if not connected, but on a
> network I have a IP address. So that blows that one. However if the IP
> address is 0.0.0.0 it should reflect a dialup user right?
>
> Thanks for the help.
>
Greg:
Last night while I was xperimenting with POPck, I was using winsock
GetIP
to return the host address; It worked fine. When the connection dropped,
it reported (I think) 127.0.0.1 (localhost). Before dialing, there was
something else (error code?)
I can't get it to work at all tonight. Too tired to see the screen
clearly,
I guess. Tomorrow is another day.
Irv
6. Re: Detecting a internet connection
- Posted by bonn ortloff <kc7yrh at HOTMAIL.COM>
Aug 03, 1998
-
Last edited Aug 04, 1998
>Date: Sun, 2 Aug 1998 22:01:02 -0400
>Reply-To: Euphoria Programming for MS-DOS
<EUPHORIA at LISTSERV.MUOHIO.EDU>
>From: Irv <irv at ELLIJAY.COM>
>Subject: Re: Detecting a internet connection
>To: EUPHORIA at LISTSERV.MUOHIO.EDU
>
>Greg Harris wrote:
>>
>> Thanks. Where I work in my mundane job, I can't get out of the
firewall but
>> I can resolve hostnames.
>> You can check the IP address (should be 0.0.0.0) if not connected,
but on a
>> network I have a IP address. So that blows that one. However if the
IP
>> address is 0.0.0.0 it should reflect a dialup user right?
>>
>> Thanks for the help.
>>
>Greg:
>
>Last night while I was xperimenting with POPck, I was using winsock
>GetIP
>to return the host address; It worked fine. When the connection
dropped,
>it reported (I think) 127.0.0.1 (localhost). Before dialing, there was
>something else (error code?)
>
>I can't get it to work at all tonight. Too tired to see the screen
>clearly,
>I guess. Tomorrow is another day.
>
>Irv
>
127.0.0.1 is you, basically. if you telnetted 127.0.0.1, I dunno what
would happen, but it would be you. (finger is better)
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