User manual

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Actiontec Broadband Router User Manual
• NAT - Select this option to activate Network Address Translation (NAT),
which translates IP addresses to a valid, public address on the Internet. NAT
adds security, since the IP addresses of the devices on the network are not
transmitted over the Internet. In addition, NAT allows many addresses to
exist behind a single valid address. Use the NAT routing mode only if the
local network consists of a single device, or collisions may occur if more than
one device attempts to communicate using the same port.
• NAPT - Select this option to activate NAPT (Network Address and Port
Translation), which refers to network address translation involving the
mapping of port numbers and allows multiple machines to share a single IP
address. Use NAPT if the local network contains multiple devices, a topol-
ogy that necessitates port translation in addition to address translation.
Device Metric The device metric is a value used by the Router to determine
whether one route is superior to another, considering parameters such as band-
width, delay, and more.
Default Route Click in this check box to define the connection as a the default
route.
Multicast - IGMP Proxy Default Click in this check box to enable the Router to
issue IGMP (Internet Group Management Protocol) host messages on behalf of
hosts the Router discovers through standard IGMP interfaces. IGMP proxy enables
the routing of multicast packets according to the IGMP requests of local network
devices asking to join multicast groups.
Routing Table
Clicking New Route generates the “New Route” window, where a new route can
be configured.
Internet Connection Firewall
Click in the “Enabled” check box to activate the Router’s firewall on the WAN
PPPoE connection.