www.no-ip.com

I've register in this site with the intension of making one of my computers a server, since with this service i don't have to pay to have a static ip adress.
I've set up my pc to serve a web page and a ftp.
I can access the site and the ftp from the other two pc's i have in my home network, But i can't access from outside my home-network.
i've already turn off the firewall, but still doesn´t work!

Do any of u have any experience in setting this? or direct me to a faq/tutorial if u know any..

Thanks for any help

 

My friend Theoran, just wrote quite a good tutorial on this here. May be helpful?

Daizy

 

TonyT thanks for the reply; I have a home network with ICS both 2 pc running winxp pro and 1 pc running win98. i have internet by cable and i have a hub, no router. I understand what u said but i'm not quite shure how to do port forwarding.

Daizy today i don't have the time but tomorrow i'll try what Theoran wrote and then get back to u, thanks....

One more thing how can i make shure my isp is bloking port 80 and 21???

 

OdLink - port forwarding

ICS and home routers (and some not-home devices) use a thing called NAT (network address translation) to allow multiple PCs on your LAN to share a single assigned (real) IP address.

It works based on one of your PCs starting all internet conversations. For instance, if you have PC1, PC2, PC3 on your LAN and PC1 tries to open a conversation with www.windowsbbs.com, the packet from PC1 is trapped by NAT in your ICS.

The packet is examined for the source PC (PC1 in this case), that information stored in the NAT database, the packet is modified to have your ICS connection IP in the header, and sent on it's way.

The return packet from www.windowsbbs.com is also trapped by NAT and matched up with the PC that started the conversation. The header is changed and the packet sent along to PC1.

But if www.windowsbbs.com had tried to start a conversation with PC1, it would fail. The packet would reach NAT but no match would be found and the packet would be discarded.

In order for you to operate any sort of web or ftp server behind NAT, there has to be some way for a packet/conversation originating from the internet to find the correct PC. This is done by Port Forwarding.

All IP internet traffic has a port number appended to the IP address. Certain ones are agreed on by convention. So, a packet with 80 appended to the address would be seen as http traffic. 20/21 as ftp traffic. And so on.

When you set up port forwarding for an FTP server for instance, you tell your ICS installation that any packet addressed to port 20 is to go to (be forwarded to) a specific PC at your place - your FTP server in this case. This way NAT will ignore it and it will get to your FTP server.

The setup of port forwarding with ICS is lots trickier than with a router switch. Take a look Here for some ideas.

 

Trash the ICS get a router and foward port 80, 20, & 21 to your web server.
No headaches it can be done in as little as 15 min by somone with router experience.
Linksys is the most popular router in the home networking industry.

 

just one more thing to add, some routers call port forwarding 'virtual servers', just so you know you won't get confused that way