Can't connect...outside firewall

Fitz6544 · Post by **Fitz6544** » 2005-01-05 05:48

From my home computer (XPPro), I can't connect to a remote computer outside my home network using version 19. This includes the web browser and viewer. My home computer is behind a NAT router and SP2 firewall. The remote computer (XPHome) is behind SP2 firewall. Ports 5800 and 5900 are open on remote computer.

From another outside remote computer, I can't connect to my computer inside my home network using version 19. This includes the web browser and viewer. The home network is behind a NAT router and SP2 firewall. The remote computer is Win98 not behinde router or firewall. Ports 5800 and 5900 are open on the home router and firewall and fowarded to correct computer.

I can connect from within the home network to other computers in the home network.

At wits end. Thanks for any help in advance.
Jerry

ipsec · Post by **ipsec** » 2005-01-05 07:01

Forward your ports in your NAT'd router.

That should fix your problem.

Fitz6544 · Post by **Fitz6544** » 2005-01-05 14:14

Thanks...I've already done that. Other suggestions?

ipsec · Post by **ipsec** » 2005-01-05 16:31

The only thing that could be the problem is your network translation and or firewall at your router.

What router do you have. Sometimes just opening up a Virtual Server port doesnt do it. You have to allow traffic via the router firewall also.

Since you say it works properly from your internal network (LAN) the two possible thing would be the ports arent properly being forwarded to your internal computers from the wan or the remote end is not actually hitting your computer on those ports.

have you verified the ports are open on your router - by doing either a scan with nessus or nmap from an external computer. or from this site on your internal computer -
http://www.dslreports.com/scan

Fitz6544 · Post by **Fitz6544** » 2005-01-06 04:40

I have a cable modem running to VOIP modem running to router. I fogot the VOIP modem has a firewall. I forwarded the appropiate ports in the VOIP modem, started the server and www.grc.com says ports 5850 and 5950 (I had to change ports because another computer inside network has 5800 and 5900), anyhow grc says ports are open. When I get outside the network, I'll try to connect again. BTW, is it just TCP I need enabled or UDP also?

Thanks

ipsec · Post by **ipsec** » 2005-01-06 07:28

I only use the viewer - and it only requires TCP open not UDP so I am assuming the same for the web viewer also.

Glad you found your cause of the issue

Im sure you will like this program as Much as I have from work.

UltraVNC

Can't connect...outside firewall

Can't connect...outside firewall

Already did that

Might have solved it