Any other data calls will be rejected. The next layer of security is password authentication. The DIVA ISDN Router uses a protocol called PPP to communicate with remote routers or ISDN adapters. It is recommended to use CHAP where possible as it provides encrypted authentication and so is more secure. The filters allow or deny access to certain resources or networks depending on IP address or IP ports.
Filters page to configure the filters.
The benefits of this are the ability for all connected computers to access the Internet using one Internet address and ISP account, and firewall-like security. NAT operates transparently, translating internal addresses to external ones for all data traffic. NAT is enabled by default, and it is recommended that you do not turn it off unless you have a specific requirement to do so. Solution 6 disables NAT completely. If you configure a path through NAT for traffic for a specified port on a workstation, remember that the IP address that you use is not the address of the workstation.