Cortelco C60 user manual Network Address Translation NAT

When a connected device tries to access 192.168.1.118, the phone will deny the request because of the out_access rule. Access to any other IP address will be allowed.

Click the Delete button to delete the selected rule.

8.3.7.3Network Address Translation (NAT)

NAT is the process of modifying IP address and port information in transition from a private to a public network. NAT allows the use of one public address to support many private addresses.

DMZ Configuration

Servers in a network most vulnerable to attack are those which provide services to users outside the local network. Many times these computers are placed into their own sub-network to provide more protection to the rest of the local network. This sub-network is called a DMZ (taken from “demilitarized zone”). Computers in the DMZ have limited

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