192.168.0.x is generally a wireless network (most home PC routers use
192.168.1.x for a wired network). My guess is that you are bound to a
different network card than you think.
Also, since generally PC routers assign IP addresses starting with
"192.168.x.50" then it appears that your 192.168.0.2 is a static IP
address. This might be on purpose; certainly when NAT'ing external
requests thru your router it's easiest if the destination PC on your
local network has a static IP address.
Try this:
1. Open DOS command prompt (Start/Run, "cmd").
2. Type "ipconfig". That will show you the network interfaces active.
3. Type "ipconfig /release". If you are using DHCP, that frees the IP
connection. If you aren't using DHCP, the command gives a cryptic and
scary (but harmless) error message which you may ignore.
4. Type "ipconfig /renew". Same notes for above.
5. Go to services (Start/Control Panel/Computer Administration/Services)
and restart the VNC Server service.
6. Flyover the VNC server icon on the systray and see if it has bound to
the same IP address.
Also to try after doing the previous:
7. From the DOS prompt, type "netstat -a". Look for the 5900 port. It
should be LISTENING.
8. Try connecting to your local box using telnet ("telnet localhost
5900"). You should end up with an empty screen with something like "RFB
003.008" at the top. If so, you are truly listening on 5900 (which is
all that EchoVNC verified, right, Scott?). Use Ctrl+C and press ENTER a
few times to break the connection.
9. Verify that, on your router, you are truly forwarding port 5900 to
192.168.0.2 (if that is, indeed, the correct IP address).
Other than that, it's got me stumped. I'd say "open your machine and
we'll check it out for you" but that's unfortunately the problem you're
trying to solve :)
Cheers,
Andy
Aaron Hill wrote:
I just downloaded a copy of EchoVNC and it is not detecting my VNC Server
even though when I fly over it in the systray it shows VNC Server
(Service):192.168.0.2. There may be something to your idea that the VNC
Server is bound to a different network. My guess though, being that this is
a home PC meant for the very average user, there is only one network card.
I have had other people sniff the ports and found that 5900 is open and
accepting connections. So, I downloaded Ethereal 0.10.11 and quickly found
out that it's a program way over this novice's head.
If I'm Port Forwarding port 5900 properly, If VNC Server is running
properly, if my ZoneAlarm firewall is properly set to allow such connections
(or diabled) what could be the issue? Any ideas?
Thanks much,
Aaron Hill
-----Original Message-----
From: Andy Bruce - softwareAB [mailto:[EMAIL PROTECTED]
Sent: Friday, July 22, 2005 12:35 PM
To: Aaron Hill
Cc: [email protected]
Subject: Re: Cannot connect
If you've tried everything else, download free trial of Ethereal and
sniff the port. It will tell you if anything is making it in. It sounds
to me like "something" is blocking what you've got.
On a more local note--when you run VNC in service mode you should get
the VNC icon showing up on your system tray. Try flying over it and see
if you get a display like "VNC Server (Service): 192.168.1.105" (that's
my local address, obviously to have it NAT'ed through the router I have
to enable port forwarding to my local box).
I've found it's not unusual for someone to flyover their systray item
and it happily reports that the VNC server isn't really listening. Also,
the VNC server could possibly be bound to the wrong network connection
if you have multiple network cards in your box.
Cheers,
Andy
Aaron Hill wrote:
New to VNC and new to networking in general but like most everything, I
jump
right in. I have VNC Server set up in service mode on my home PC (XP).
Every attempt to connect to my server PC from an outside internet
connection
has been blocked. I can connect to other PCs with the viewer and I can
remotely access my PC with my laptop when it is connected to the LAN. Port
5900 is wide open and can be sniffed by gotomyvnc.com. I have read many
other posts regarding connectivity issues and tried several of the
solutions
with no success. I am concerned that there is a software program that is
blocking the connection. I have Windows Firewall diabled and even tried
completely disabling my ZoneAlarm Firewall with no luck.
Could this be the result of a program blocking the connection or VNC Server
rejecting the connection?
Aaron Hill
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