URL Blocking
Enabling this function the administrator can prevent LAN users from accessing specific
websites.Enter the URL keywords then the unwanted website will be blocked. For example, if you
enter
“XXX”
in the URL blank then all the URL with keyword
“XXX”
will be blocked.This is very
useful for parents to prevent children from suffering certain sites.
Virtual Server
The wireless router can be configured as a virtual server so that remote users accessing nternet
servers (like WWW, FTP, E-mail) via the public IP address can be automatically redirected to local
servers in the LAN. The router firewall feature filters out unrecognized packets to protect your LAN
network so all networked computers connected the router are invisible to the outside world. If you
wish, you can make some of the networked computers accessible from the Internet by enabling
Virtual Server. Depending on the requested service, the router will redirect the external service
request to the appropriate server within the LAN network.
Since all the Internet servers always handle the fixed TCP/UDP service port number (like WWW
is 80, FTP is 21) any packets from the WAN which have a destination port number that matches a
virtual server’s ports, then these packets will be forwarded to the pre-defined LAN’s IP. The
destination port number is also kept the same or mapped into another port for LAN. TCP ports are
always mapped into TCP ports.
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