Re: OT - Network Black Hole?

["Mark McCall" <mark@xxxxxxx>]

Just found it..thanks!

M.



----- Original Message -----
From: Neil F <automated@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, April 09, 2001 11:09 PM
Subject: Re: [ukha_d] OT - Network Black Hole?


> yes....but v1.5 is available on practicallynetworked
>
> neil
> ----- Original Message -----
> From: "Mark McCall" <mark@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Monday, April 09, 2001 11:08 PM
> Subject: Re: [ukha_d] OT - Network Black Hole?
>
>
> > just found this Neil...
> >
>
http://www.freedownloadscenter.com/Network_and_Internet/Misc__Dial-up_Networ
> > king_Tools/ICSCFG.html
> >
> > Is this is?
> >
> > thanls
> >
> > M.
> >
> >
> > ----- Original Message -----
> > From: Neil F <automated@xxxxxxx>
> > To: <ukha_d@xxxxxxx>
> > Sent: Monday, April 09, 2001 10:51 PM
> > Subject: Re: [ukha_d] OT - Network Black Hole?
> >
> >
> > > Heres a snippet from the ICS config Read Me...I say this is
the
> > > problem..loop-back error may mean ICS isn't forwarding it to
the local
> > host.
> > >
> > > === INTRODUCTION ===
> > >
> > > When Microsoft released the "second edition" of
Windows 98, they
> included
> > an
> > > optional component called "Internet Connection
Sharing" (ICS). ICS
> allows
> > a
> > > network of users to share a single internet connection
through a
process
> > > called Network Address Translation (NAT).
> > >
> > > ICS allows any OUTGOING connection to take place. Therefore
any client
> > > computer can surf the net, or send and receive email.
However,
INCOMING
> > > connections, like those required for a web server, are
another story
> > > entirely. ICS blocks incoming connections on all ports
unless they are
> > > explicity opened.
> > >
> > > Unfortunately, ICS does not include any means to open or
configure
port
> > > access. This program, ICSCFG, allows you to do just that.
You can open
> or
> > > close port access. You can create new port mappings. You can
even have
> ICS
> > > forward incoming connections to any interior machine.
> > >
> > > HTH
> > > Neil
> > > ----- Original Message -----
> > > From: "Neil F" <automated@xxxxxxx>
> > > To: <ukha_d@xxxxxxx>
> > > Sent: Monday, April 09, 2001 10:33 PM
> > > Subject: Re: [ukha_d] OT - Network Black Hole?
> > >
> > >
> > > > Mark,
> > > >
> > > > you might want to get him to try installing 'ICS
configuration' from
> > here
> > > :
> > > > http://www.practicallynetworked.com/sharing/ics/ics.htm
> > > >
> > > > You can set specific ports to be forwarded to internal
machines
> > (including
> > > > localhost)...gotta be worth a try.
> > > >
> > > > but maybe your already on to it :-)
> > > >
> > > > Neil
> > > >
> > > > ----- Original Message -----
> > > > From: "Mark McCall" <mark@xxxxxxx>
> > > > To: <ukha_d@xxxxxxx>
> > > > Sent: Monday, April 09, 2001 3:48 PM
> > > > Subject: Re: [ukha_d] OT - Network Black Hole?
> > > >
> > > >
> > > > > Thanks...will give these a try.
> > > > >
> > > > > M.
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Adam Stevens"
<adam@xxxxxxx>
> > > > > To: <ukha_d@xxxxxxx>
> > > > > Sent: Monday, April 09, 2001 3:31 PM
> > > > > Subject: RE: [ukha_d] OT - Network Black Hole?
> > > > >
> > > > >
> > > > > > > A mate is going up the walls because he
cannot connect to his
> > > machine
> > > > > over
> > > > > > the Net
> > > > > > > via VNC etc.  We have tried another
remote-control app as well
> as
> > > > > > shoutcast server
> > > > > > > and nothing works.
> > > > > >
> > > > > > Couple of things...
> > > > > >
> > > > > > Is he running a local network?  If so, can he
VNC to one machine
> > from
> > > > > > another locally?
> > > > > >
> > > > > > I don't know if "Shields Up" does a
port scan of high port
> numbers,
> > > but
> > > > > VNC
> > > > > > uses as default port 5800 and 5900.  5800 is
used for it's own
web
> > > > server,
> > > > > > so it's quite a good test to go to "http://hisIPaddress:5800/";
and
> > see
> > > > if
> > > > > > you get a VNC login screen... If you don't
then either the port
is
> > > being
> > > > > > blocked, or VNC isn't setup (which narrows it
down, because if
> > you're
> > > > sure
> > > > > > VNC is set-up correctly, then it's something
blocking the ports!
> > > > > >
> > > > > > You could also try some other type of port
scanning software to
> scan
> > > the
> > > > > > high ports (eg, 5800 and above).  See if you
get anything there.
> > > > > >
> > > > > > Can you access his web server (PWS) remotely?
 If so, can you
> switch
> > > the
> > > > > PWS
> > > > > > port from 80 to 5800 or 5900, and see if you
can still access
> it...
> > If
> > > > you
> > > > > > can connect when it's on port 80, but not
when it's on port
5800,
> > then
> > > > > > something *is* blocking the port!
> > > > > >
> > > > > > FWIW, I have a friend, who's w2k machine
refuses to allow any
FTP
> > > server
> > > > > on
> > > > > > port 21 (including IIS).  It's almost as if
port 21 on his
machine
> > is
> > > > > "bust"
> > > > > > :-)  Sounds like a similar problem?
> > > > > >
> > > > > > If none of the above works, then give it a
good hard kick... Or
do
> > > what
> > > > > the
> > > > > > network admins did at one place I worked at,
and just spend a
few
> > > hours
> > > > > > pinging machines until it magically starts
working! :-)
> > > > > >
> > > > > > Adam.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
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