User's Manual

Table of Contents
B222s User’s Guide
8
10.5.1 NAT Definitions ....................................................................................................................100
10.5.2 What NAT Does ...................................................................................................................101
10.5.3 How NAT Works ..................................................................................................................101
Chapter 11
Dynamic DNS ....................................................................................................................................103
11.1 Overview ......................................................................................................................................103
11.1.1 What You Need To Know .....................................................................................................103
11.2 The Dynamic DNS Screen ............................................................................................................104
Chapter 12
Firewall ..............................................................................................................................................105
12.1 Overview .......................................................................................................................................105
12.1.1 What You Can Do in this Chapter ........................................................................................105
12.1.2 What You Need to Know ......................................................................................................106
12.2 The General Screen .....................................................................................................................107
12.3 The Services Screen .....................................................................................................................108
12.3.1 The Add New Services Entry Screen ..................................................................................108
12.4 The Access Control Screen ..........................................................................................................109
12.4.1 The Add New ACL Rule/Edit Screen ................................................................................... 110
12.5 The DoS Screen ............................................................................................................................ 111
12.6 Firewall Technical Reference ........................................................................................................ 112
12.6.1 Guidelines For Enhancing Security With Your Firewall ....................................................... 112
12.6.2 Security Considerations ....................................................................................................... 112
Chapter 13
MAC Filter.......................................................................................................................................... 115
13.1 Overview ....................................................................................................................................... 115
13.1.1 What You Need to Know ...................................................................................................... 115
13.2 The MAC Filter Screen .................................................................................................................. 115
Chapter 14
Parental Control................................................................................................................................ 117
14.1 Overview ....................................................................................................................................... 117
14.2 The Parental Control Screen ......................................................................................................... 117
14.2.1 Add/Edit a Parental Control Rule ......................................................................................... 118
Chapter 15
VoIP ....................................................................................................................................................121
15.1 Overview .......................................................................................................................................121
15.1.1 What You Can Do in this Chapter ........................................................................................121
15.1.2 What You Need to Know ......................................................................................................121
15.1.3 Before You Begin .................................................................................................................123