Connecting through a router

bsaxey · Post by **bsaxey** » 2006-05-19 16:55

I am trying to connect to my home computer via the internet (like everyone else here):-D I have installed UltraVNC on my home and office computers and can't make the connection. I have read the FAQ's, have forwarded the 5900 and 5800 ports on my home router (which is a motorola) to the home computers ip address (192.168.10.10), I have gone to dyndns.org and set up a dynamic domain which links to my router. I have the auto-update software from dyndns on my home computer and it seems to be updating fine. However I still cannot connect. It appears that the problem is in connecting to the home computer. I have gone to www.gotomyvnc.com (on the home computer) and it is unable to make a connection either - telling me that somehow the home computer/router is not allowing the connection. My home computer is running Windows 2000 and does not appear to have a firewall running. Any help or troubleshooting suggestions would be greatly appreciated.

qhelix · Post by **qhelix** » 2006-05-20 02:23

I'm also having a similar problem. Currently I'm using a D-Link ADSL modem, and that's connected to my Linksys WRT54G Wireless router. On the D-Link modem, I've set the wireless router's IP to be in DMZ, and on the wireless router I put the desktop computer's IP in the DMZ so by right I should not have to do port forwarding at all right?

Here's the problem I'm facing when trying to connect. I'm able to use the internal IP (192.168.1.x) to connect to the desktop using my laptop, but when I try using the IP assigned by my ISP (found that through the ADSL modem's admin page as well as www.whatismyip.com), I get a connection refused error. I have tried a range of ports (ranging from 80 to 5900) but I always get the connection refused error.

Since I am able to connect using the internal IP address, does that mean the problem lies with my ADSL modem and not in the wireless router? Both desktop computer and laptop are running on WindowsXP.

grahamw · Post by **grahamw** » 2006-05-20 08:11

I overcame these problems using a program called Hamachi from www.hamachi.cc . Hamachi sets up a secure tunnel between two or more computers and I am currently using UltraVNC thru the Hamachi program with encryption and have set up about 6 computers so far and can gain instant access to anyone of them from work or home. Using Hamachi doesn't require Port Forwarding to be set up in your Router or a Static IP from you ISP or a dynamic domain service and is very easy to install and get going. When Hamachi is installed on each computer you are given an ip address for that computer in the 5.x.x.x range and this is used as the IP address in UltraVNC to connect between the computers. Hamachi also provides browsing and file sharing of others on your "Hamachi Network" but I haven't been able to get this working yet because I haven't yet figured out how to get past the XP & 2K security (Hamachi only works with XP & 2K). More info on using Hamachi with VNC programs, Remote Desktop etc is available in the Hamachi forums.
Hamachi came highly recommended by Steve Gibson on one of his radio shows - see http://www.grc.com/sn/SN-018.htm

qhelix · Post by **qhelix** » 2006-05-20 09:37

Thanks for pointing me to Hamachi. Not exactly the solution I was looking for but nonetheless I'm glad there's something I can use when I'm away from home.

master3145 · Post by **master3145** » 2006-05-24 02:16

After spending forever reading up on Hamachi it seems the only reason anybody using VNC would consider it is because you can use it to remotely access a computer, just like VNC does.

However, the assumption is that you have administrative control on the remote computer.

This is a problem for those of us trying to connect from home to work and the IT department has admin rights

brightertimes · Post by **brightertimes** » 2006-05-24 10:18

Hi

I am having similar problems, so I thought I'd sit in on this post.

I was wondering if anyone could give me a bit of help and advice. I have a wrt54gs v3 linksys router running firmware ddwrt r24

I use Ultravnc quite a lot but as I am behind a router I need to know my external IP address in advance. If my ip address changes I need to make a constant note of it. I have a few computers that I wish to connect to at various parts of the country, all under the same router/cable conditions

Can anyone suggest anything which would help me out? I was thinking of writing a script that visits a website like whatismyip and then writes it to a file and then uploads it to a website via ftp so I can read it?

Any hints would be greatful.

P.S. I did not an option in DDWRT which says: Enable Server/Web access but I am not sure how I would find my external IP if my cable modem reboots for instance.

Thanks

qhelix · Post by **qhelix** » 2006-05-25 11:46

Try registering with http://www.no-ip.com/.

If I'm not wrong, you register your existing IP with them and they will issue you with a domain name, something like example.no-ip.com or something like that. Then after that you install this program which will automatically update the IP of your computer when it changes, so no matter where you are you can still access your computer using example.no-ip.com. I think this is a free service too.

Connecting through a router

Connecting through a router

Connecting thru a router