We have recently installed PIX Firewall. Everything seems to be working fine (http, ftp, etc). There is one application which uses Pelco device (Video camera devices). The application uses the tcp port 9999 (to talk to the host) and the port from client changes from 2800-3000.
There is a Pelco Video camera (DX7000) devices which allows the real-time view of all the cameras which are connected to this device.
To view the real-time frames, the client use a S/W (again supplied by pelco) and connect to the DX7000(which has IP address) device and view the frames.
When there was no PIX firewall all the clients were able to view the camera snapshots from inside the network and also from the Internet.
After installing the PIX, user inside the network are able to see the camera snapshots but the users from the internet cannot view the frames. The client uses TCP PORT 9999 to contact the host (ie DX7000) and the client uses random tcp port nos. starting from 2800-2900.
tks for the reply. But there is no NAT on the firewall configured and even the device (DX7000) has a valid IP address. There is also a FTP in DMZ and and using an access-list to let the traffic reach to the FTP server
I have also used a access-list to allow the traffic. But it is not working.
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