4 - Configuring the SAGEM F@st™ 1500 ADSL router
4.7.1Address Mapping
This feature allows one or more public IP addresses to be shared by multiple internal users. This also hides the internal network for increased privacy and security. Enter the Public IP address you wish to share into the Global IP field. Enter a range of internal IPs that will share the global IP into the “from” field.
SAGEM F@st™ 1500 Reference Manual -