3com 3cp4144 补充手册
How to setup HTTP Filtering to prevent Denial-of-Service Attacks on the
OfficeConnect Remote 812 Router
OfficeConnect Remote 812 Router
By default, the OCR 812 Web Configuration interface is accessed from the LAN interface as well as the WAN interface.
The following procedure describes how to configure a filter that prohibits access to the built-in HTTP server and the
Web Configuration interface from the WAN interface.
Web Configuration interface from the WAN interface.
This filter will prevent all access to TCP and UDP port 80 from the WAN interface to the OCR 812. The Web
Configurator, however, will still be available to users on the local LAN interface for managing the unit.
Configurator, however, will still be available to users on the local LAN interface for managing the unit.
Step 1:
Using a workstation on the local area network. Launch your web browser. On the
Address bar, enter the IP address of the Router. You will be prompted for the user-
name and password for the unit. (Figure 1)
Address bar, enter the IP address of the Router. You will be prompted for the user-
name and password for the unit. (Figure 1)
After logging into the unit, the OfficeConnect Remote 812 Manager screen is dis-
played.(Figure 2)
played.(Figure 2)
Figure 1
Figure 2