Sitecom WLR-6000, User Manual

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14 Advanced Settings
Network Address Translation (NAT) allows multiple users at your local site to
access the Internet through a single Public IP Address or multiple Public IP
Addresses. NAT provides Firewall protection from hacker attacks and has the
flexibility to allow you to map Private IP Addresses to Public IP Addresses for
key services such as Websites and FTP. Select Disable to disable the NAT
function.
Port Forwarding
Port Forwarding allows you to re-direct a particular range of service port
numbers (from the Internet/WAN Port) to a particular LAN IP address. It helps
you to host servers behind the router NAT firewall.
Enable Port Forwarding Enable Port Forwarding
Local IP This is the private IP of the server behind the NAT firewall.