AOpen AOR-401 User Manual page 33

Example:
ID
1 192.168.2.20
2 192.168.2.12
3 192.168.2.12
4 192.168.2.28
2-5 Firewall
The Broadband Router provides extensive firewall protection by
restricting connection parameters to limit the risk of hacker attack, and
defending against a wide array of common hacker attacks.
The Broadband Router provides packet filtering rules by restricting
service ports, IP address or MAC address. However, for applications
that require unrestricted access to the Internet, configure a specific
client/server as a demilitarized zone (DMZ).
2-5-1 Block WAN Ping
When the "Block WAN Ping" activated, it is causing the public WAN
IP address on the Broadband Router not to respond to ping commands.
Pinging public WAN IP addresses is a common method used by
Server IP Mapping Port Type
80 TCP
20 TCP
21 TCP
23 TCP
31
Comment
Web Server
FTP Server
FTP Server
Telnet Server