TeleWell TW-EA514, User Manual

Page: 70 / 173

4
The TW-EA514 provides two levels of security support. First, it masks LAN IP addresses
making them invisible to outside users on the Internet, so it is much more difficult for a
hacker to target a machine on your network. Second, it can block and redirect certain
ports to limit the services that outside users can access. To ensure that games and other
Internet applications run properly, you can open specific ports for outside users to access
internal services on your network.
The Integrated DHCP (Dynamic Host Control Protocol) client and server services allow
multiple users to get IP addresses automatically when the router boots up. Simply set
local machines as a DHCP client to accept a dynamically assigned IP address from the
DHCP server and reboot. Each time a local machine is powered up; the router recognizes
it and assigns an IP address to instantly connect it to the
LAN
.
For advanced users, Virtual Service (port mapping) functions allow the product to provide
limited visibility to local machines with specific services for outside users. For instance, a
dedicated web server can be connected to the Internet via the router and then incoming
requests for web pages that are received by the router can be rerouted to your dedicated
local web server, even though the server now has a different IP address.
Virtual Server can also be used to re-task services to multiple servers. For instance, you
can set the router to allow separated FTP, Web, and Multiplayer game servers to share the
same Internet-visible IP address while still protecting the servers and LAN users from
hackers.