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Chapter 15 Firewall
AMG1302/AMG1202-TSeries User’s Guide
187
• LAN to WAN
These rules specify which computers on the LAN can access which computers or services on the
WAN.
By default, the AMG1302/AMG1202-TSeries’s stateful packet inspection drops packets traveling in
the following directions:
• WAN to LAN
These rules specify which computers on the WAN can access which computers or services on the
LAN.
Note: You also need to configure NAT port forwarding (or full featured NAT address
mapping rules) to allow computers on the WAN to access devices on the LAN.
• WAN to Router
By default the AMG1302/AMG1202-TSeries stops computers on the WAN from managing the
AMG1302/AMG1202-TSeries. You could configure one of these rules to allow a WAN computer to
manage the AMG1302/AMG1202-TSeries.
Note: You also need to configure the remote management settings to allow a WAN
computer to manage the AMG1302/AMG1202-TSeries.
You may define additional rules and sets or modify existing ones but please exercise extreme
caution in doing so.
For example, you may create rules to:
• Block certain types of traffic, such as IRC (Internet Relay Chat), from the LAN to the Internet.
• Allow certain types of traffic, such as Lotus Notes database synchronization, from specific hosts
on the Internet to specific hosts on the LAN.
• Allow everyone except your competitors to access a web server.
• Restrict use of certain protocols, such as Telnet, to authorized users on the LAN.
These custom rules work by comparing the source IP address, destination IP address and IP
protocol type of network traffic to rules set by the administrator. Your customized rules take
precedence and override the AMG1302/AMG1202-TSeries’s default rules.
15.6.2 Guidelines For Enhancing Security With Your Firewall
6
Change the default password via web configurator.
7
Think about access control before you connect to the network in any way.
8
Limit who can access your router.
9
Don't enable any local service (such as telnet or FTP) that you don't use. Any enabled service could
present a potential security risk. A determined hacker might be able to find creative ways to misuse
the enabled services to access the firewall or the network.
10
For local services that are enabled, protect against misuse. Protect by configuring the services to
communicate only with specific peers, and protect by configuring rules to block packets for the
services at specific interfaces.
Содержание AMG1202-T series
Страница 4: ...Contents Overview AMG1302 AMG1202 TSeries User s Guide 4 ...
Страница 13: ...13 PART I User s Guide ...
Страница 14: ...14 ...
Страница 20: ...Chapter 1 Introduction AMG1302 AMG1202 TSeries User s Guide 20 ...
Страница 28: ...Chapter 2 Introducing the Web Configurator AMG1302 AMG1202 TSeries User s Guide 28 ...
Страница 61: ...Chapter 4 Tutorials AMG1302 AMG1202 TSeries User s Guide 61 Tutorial Advanced QoS Class Setup ...
Страница 64: ...Chapter 4 Tutorials AMG1302 AMG1202 TSeries User s Guide 64 ...
Страница 65: ...65 PART II Technical Reference ...
Страница 66: ...66 ...
Страница 72: ...Chapter 5 Connection Status and System Info Screens AMG1302 AMG1202 TSeries User s Guide 72 ...
Страница 120: ...Chapter 7 Wireless LAN AMG1302 AMG1202 TSeries User s Guide 120 ...
Страница 144: ...Chapter 10 Quality of Service QoS AMG1302 AMG1202 TSeries User s Guide 144 Figure 64 QoS Class Setup Add Edit ...
Страница 150: ...Chapter 10 Quality of Service QoS AMG1302 AMG1202 TSeries User s Guide 150 ...
Страница 160: ...Chapter 11 Network Address Translation NAT AMG1302 AMG1202 TSeries User s Guide 160 ...
Страница 172: ...Chapter 14 Filters AMG1302 AMG1202 TSeries User s Guide 172 ...
Страница 194: ...Chapter 16 Parental Control AMG1302 AMG1202 TSeries User s Guide 194 ...
Страница 200: ...Chapter 17 Certificate AMG1302 AMG1202 TSeries User s Guide 200 ...
Страница 206: ...Chapter 19 Traffic Status AMG1302 AMG1202 TSeries User s Guide 206 ...
Страница 208: ...Chapter 20 User Account AMG1302 AMG1202 TSeries User s Guide 208 ...
Страница 212: ...Chapter 21 TR 069 Client AMG1302 AMG1202 TSeries User s Guide 212 ...
Страница 216: ...Chapter 22 System Settings AMG1302 AMG1202 TSeries User s Guide 216 ...
Страница 222: ...Chapter 24 Backup Restore AMG1302 AMG1202 TSeries User s Guide 222 ...
Страница 234: ...Chapter 25 Remote Management AMG1302 AMG1202 TSeries User s Guide 234 ...
Страница 238: ...Chapter 26 Diagnostic AMG1302 AMG1202 TSeries User s Guide 238 ...
Страница 244: ...Chapter 27 Troubleshooting AMG1302 AMG1202 TSeries User s Guide 244 ...
Страница 280: ...Appendix C Pop up Windows JavaScripts and Java Permissions AMG1302 AMG1202 TSeries User s Guide 280 ...
Страница 294: ...Appendix D Wireless LANs AMG1302 AMG1202 TSeries User s Guide 294 ...
Страница 304: ...Appendix E IPv6 AMG1302 AMG1202 TSeries User s Guide 304 ...
Страница 320: ...Index AMG1302 AMG1202 TSeries User s Guide 320 ...