Firewall problems when connecting via the phone
My organization would like to have a VOIP phone system, for the network but our firewall does not support the connection from the phone. To adjust it, we manually created an exception on the firebox on our 5060 TCP using a wizard. While doing this, we encountered another problem. There is a firewall on our Entopic modem and we cannot disable it through our ISP.
So, we decided to create a pinhole through our modem for TCP 5060. This did not solve our problem.
We are having a hard time creating a pinhole because before we could get through it, the pinhole will first go through a firebox firewall and every time the pinhole is used, it always asks for an IP address.
Do you think I should put the WAN IPM address of the firebox for the internal IP address? What should I put; Our public IP address for our domain or the IP address of the modem?
On the other hand, we are using SBS 2003 dual configuration and one of it is connected through the WAN while the other is connected through our LAN. Are there any specific rules that need to be configured on the SBS box?