User Manual

VisionNet 202ER ADSL Ethernet Router User’s Guide
vii
Overview of Bridges...........................................................109
Using the Bridging Feature................................................110
Defining Bridge Interfaces .................................................111
Deleting a Bridge Interface................................................112
17 Configuring Firewall Settings .......................... 113
Configuring Global Firewall Settings.................................113
Managing the Black List ....................................................116
18 Configuring IP Filters....................................... 117
Overview.............................................................................117
Viewing Your IP Filter Configuration.................................117
Configuring IP Filter Global Settings.................................118
Creating IP Filter Rules......................................................119
IP filter rule examples ........................................................124
Viewing IP Filter Statistics .................................................126
Managing Current IP Filter Sessions................................126
19 Viewing DSL Parameters................................ 129
A IP Addresses, Network Masks, and
Subnets......................................................... 132
IP Addresses ......................................................................132
Structure of an IP address..........................................132
Network classes..........................................................133
Subnet masks.....................................................................133
B Binary Numbers............................................... 135
Binary Numbers .................................................................135
Bits and bytes..............................................................135
C Troubleshooting............................................... 137