The IP Office system can act as a firewall, allowing only specified data traffic to start a session across the firewall and controlling in which direction such sessions can be started.
You can select a firewall profiles for the following areas of IP Office operation:
You can apply a firewall profile to traffic between LAN1 and LAN2.
You can select a firewall for users who are the destination of incoming RAS calls.
You can select a firewall when you configure a service.
Note:
The IP Office firewall profiles can include Static network address translation (NAT) records. If the firewall profile contains any Static NAT records, the IP Office blocks traffic that does not match one of those static NAT records.
If Network Address Translation (NAT) is used with the firewall, you must configure the Primary Trans. IP Address setting on incoming services ( ).
On Linux-based systems, to ensure that the firewall starts after a reboot, you must enable the option.