user manual
Table Of Contents
- Package Contents
 - Chapter 1. Introduction
 - Chapter 2. Connecting the Router
 - Chapter 3. Quick Installation Guide
 - Chapter 4. Configuring the Router
- 4.1 Login
 - 4.2 Status
 - 4.3 Quick Setup
 - 4.4 Network
 - 4.5 Dual Band Selection
 - 4.6 Wireless 2.4GHz
 - 4.7 Wireless 5GHz
 - 4.8 DHCP
 - 4.9 USB Settings
 - 4.10 NAT
 - 4.11 Forwarding
 - 4.12 Security
 - 4.13 Parental Control
 - 4.14 Access Control
 - 4.15 Advanced Routing
 - 4.16 Bandwidth Control
 - 4.17 IP & MAC Binding
 - 4.18 Dynamic DNS
 - 4.19 IPv6 Support
 - 4.20 System Tools
 
 - Appendix A: FAQ
 - Appendix B: Configuring the PCs
 - Appendix C: Specifications
 - Appendix D: Glossary
 

TL-WDR4900 
N900 Wireless Dual Band Gigabit Router 
- 77 - 
4.12  Security 
Figure 4-68 The Security menu 
There are four  submenus under the Security menu  as  shown in Figure  4-68:  Basic Security, 
Advanced Security, Local Management and Remote Management. Click any of them, and you 
will be able to configure the corresponding functions. 
4.12.1  Basic Security 
Choose menu “Security 
→
  Basic Security”, and then you can configure the basic security in the 
screen as shown in 
Figure 4-69. 
Figure 4-69 Basic Security 
  Firewall -  A firewall protects your network from the outside world. Here you can enable or 
disable the Router’s firewall. 
  SPI Firewall - SPI (Stateful Packet Inspection, also known as dynamic packet filtering) 
helps to prevent cyber attacks by tracking more state per session. It validates that the 
traffic passing through the session conforms to the protocol. SPI Firewall is enabled by 
factory default. If you want all the computers on the LAN exposed to the outside world, 
you can disable it.   










