I work for a company that provides ISP, along with other services. We have a customer that is using security cameras. We have a dedicated 1.5 connection to their equipment. The camera company can't access the cameras remotely and are insisting we are blocking the necessary ports. There are 3 needed: 2000, 37777, 37778.
All blocking has been removed, the circuit is completely wide open, yet they still say we are blocking ports. If I Telnet to the IP and 2000 or 37777, it replies as it should. 37778 always rejects the connection. My router doesn't reject packets, only drops them. So it seems the equipment has a problem, or is misconfigured, but I can't seem to get the camera guy to admit it.
He's basing his contention entirely on an online port scan, forget which program it is.
Anyway, I want to prove the ports are open and get the guy out of my life. What I wanted to do was configure a laptop as a Telnet server and plug his connection into it, directly in front of his equipment, Telnet to those ports and prove they are open. But getting Telnet working has proven frustrating, and I don't understand why its fighting me so much.
This is the setup I'm testing here in the office. The laptop acting as the server is running Vista. I went to Programs and features and checked off on Telnet server, then started the service from the services console. If I use my W7 computer (setup as Telnet client) I can get to a login on the remote computer (the Vista laptop) using (at a telnet prompt) open (IP ADDY) port (23). But if I try 2000, 37777, 37778, I get an error saying the connection couldnt be established.
If I use the exact same syntax to the cameras connection, I get the usual responses (2000, 37777 connection, 37778 rejection). I tried replacing the W7 client with Putty and get basically the same results. And on the Vista laptop I went in to the firewall and made exceptions for the three ports.
Is there a piece I'm missing? Any help would be appreciated.
All blocking has been removed, the circuit is completely wide open, yet they still say we are blocking ports. If I Telnet to the IP and 2000 or 37777, it replies as it should. 37778 always rejects the connection. My router doesn't reject packets, only drops them. So it seems the equipment has a problem, or is misconfigured, but I can't seem to get the camera guy to admit it.
He's basing his contention entirely on an online port scan, forget which program it is.
Anyway, I want to prove the ports are open and get the guy out of my life. What I wanted to do was configure a laptop as a Telnet server and plug his connection into it, directly in front of his equipment, Telnet to those ports and prove they are open. But getting Telnet working has proven frustrating, and I don't understand why its fighting me so much.
This is the setup I'm testing here in the office. The laptop acting as the server is running Vista. I went to Programs and features and checked off on Telnet server, then started the service from the services console. If I use my W7 computer (setup as Telnet client) I can get to a login on the remote computer (the Vista laptop) using (at a telnet prompt) open (IP ADDY) port (23). But if I try 2000, 37777, 37778, I get an error saying the connection couldnt be established.
If I use the exact same syntax to the cameras connection, I get the usual responses (2000, 37777 connection, 37778 rejection). I tried replacing the W7 client with Putty and get basically the same results. And on the Vista laptop I went in to the firewall and made exceptions for the three ports.
Is there a piece I'm missing? Any help would be appreciated.