- Planex Wireless Broadband Router User's Manual

BLW-04EX

Access Control

Using this option allows you to specify different privileges for the client

PCs.

The WAN interface should have a fixed IP address to properly utilize this

function. For example, if you set Type/Public Port to TCP/80 (HTTP or

web) and the Private IP/Port to 192.168.1.2/8080, then all HTTP requests

from outside users will be transferred to port 80 80 on 192.168 .1.2.

Therefore, by just entering the IP Address provided by the ISP, Internet

users can access the service you provide at the internal address and port to

which the BLW-04EX redirects them.

Some of the more common TCP service ports include:

HTTP: 80, FTP: 21, Telnet: 23 and POP3: 110.

Security Settings Firewall

The firewall does not significantly affect system performance, so we advise

enabling it to protect your network users. Select “Enable” and click the

“APPLY” button to open the Firewall submenus.

The BLW- 0 4 E X ’s firewall can provide the access control of co nnected

client PCs, block common hacker attacks, including IP Spoofing, Land

Attack, Ping of Death, IP with zero length, Smurf Attack , UDP port

loopback, Sno rk Attack, TCP null scan, and TCP SYN flooding. The

firewall does not significantly affect system performance, so we advise

leaving it enabled to protect your network users.

Note:

When you select the “Enable” radio button of the “Enable or disable

Firewall module function” field, be sure to press the “APPLY” button.