check this out !

jim42 · Post by **jim42** » 2005-05-11 21:54

Ok, i have used UVNC for a long tiem now, i know how to do some wierd stuff (at least for me), I am able to conect to a computer behind a router and do some kind of that stuff.

NOW, here comes the problem !!!

my computer its conected (as i said) to a router wich is conected to a cable modem. but my cable modem always gets a dynamic IP and i have to write this IP everytime i disconect the modem.

do you masters of UVNC know how can i conect to my computer without knowing my ip? ... i heard it is possible by using something like a domain or something.

Actually i really think the best way is to call my internet provider and ask for an static IP. BUT ... they don't care about that stuff and i dont think they are giving me a DIP ... so maybe im screwed.

Sergio · Post by **Sergio** » 2005-05-11 22:04

Try using DDNS (Dynamic DNS) free services (http://www.dyndns.org/ or http://www.no-ip.com/)
Most routers have an option to automatically refresh the dynamic IP information everytime the IP changes.

This way you don't have to know the IP, just your DDNS address (for example: myname.dyndns.org, or myname.no-ip.com)

HTH

jim42 · Post by **jim42** » 2005-05-12 21:19

where do i tell my router to auto-refresh my DIP?

i have created a dyn server but i should be able to tell my router that i want him to refresh my ip, shouldn't i?

ooh ... and thx for the advice sergio

Ares · Post by **Ares** » 2005-05-12 21:31

jim42 wrote:where do i tell my router to auto-refresh my DIP?

i have created a dyn server but i should be able to tell my router that i want him to refresh my ip, shouldn't i?

ooh ... and thx for the advice sergio

Your router should automatically do that. If you're currently connected to the internet via that router, it's proof that it *is* automatically doing that

Usually dynamic IPs are given a "lease" time, and after the expiration, the router should automatically pick up your new IP. No user intervention should be required. However, if you'd like to check your current IP, or renew/release it, try going to http://192.168.1.1 (or whatever your router's internal IP is) and looking around. Usually it's the Status page on Linksys routers. You'll just have to look around.

But as I said, you should not have to "tell your router to refresh your IP" - that's a function provided automatically. Without an IP, you wouldn't be online right now - so it's doing it's job

Anyway, make sure you forward port 5900 (UltraVNC Server) and 5800 (if you want java client access) to your machine running the dynamic IP service. Say your address is jim42.no-ip.org running on your computer. You need to tell your router to forward those ports to your machine, so that when you access jim42.no-ip.org, it automatically forwards to your router's IP, which forwards to your internal computer's IP. To forward ports, look around in your router's configuration webpage (usually http://192.168.1.1).

Ps. if you meant how do you make your host update to your dynamic IP, you should be able to specify the interval it checks for a new IP in your dynamic IP service settings. Usually you can right click the icon beside your clock and get to the settings through there, somehow. Remember to run it as a Windows Service if you want to be able to update your IP regardless if you're logged on to Windows or not.

Hope that helps,
-Ares

Sergio · Post by **Sergio** » 2005-05-13 00:10

jim42 wrote:where do i tell my router to auto-refresh my DIP?

It depends on the router you have. I have a D-Link DI804, and the configuration is done using a web browser, and telling the router what DDNS provider to refresh (dyndns, no-ip, etc) and the name and password you setted when you created the account. On the D-Link router, this configuration settings are located on the Advanced => DDNS tabs. I think you have to look for DDNS on your router's manual.

jim42 wrote:ooh ... and thx for the advice sergio

Any time !! we are here to help each others ...

jim42 · Post by **jim42** » 2005-05-17 22:55

ok guys ... i did it !

I created my account on dyndns.org and setted up a dynamic dns host, then i told my router to send my external IP to this host ... my router has this cool feature that send my ip everytime it changes so i dont have to worrie about it anymore ... thank you all !!!

Sir Nigel · Post by **Sir Nigel** » 2005-05-19 01:19

Don't normally want to divert topics, but it seems to be answered, however I was curious. I have a static IP from our ISP, that's standard for them. It makes me wonder how often you can get that. How many ISPs use static ips for people?

ipsec · Post by **ipsec** » 2005-05-19 18:52

Sir Nigel wrote:Don't normally want to divert topics, but it seems to be answered, however I was curious. I have a static IP from our ISP, that's standard for them. It makes me wonder how often you can get that. How many ISPs use static ips for people?

Just depends on thier policy.. each company looks at it differently, and they may not have a huge amount of IP's to give out making DHCP better. Gotta love oversubscription.