Netgear DGN2000 DGN2000 Reference Manual - Page 53

Firewall Rules, Apply

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual You can specify one trusted user, which is a computer that will be exempt from blocking and logging. Since the trusted user will be identified by an IP address, you should configure that computer with a fixed IP address. 7. Click Apply to save your settings. Firewall Rules Firewall rules block or allow specific traffic passing through from one side of the router to the other. Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN) determine what outside resources local users can have access to. A firewall has two default rules, one for inbound traffic and one for outbound. The default rules of the modem router are: • Inbound. Block all access from outside except responses to requests from the LAN side. • Outbound. Allow all access from the LAN side to the outside. You can define additional rules that will specify exceptions to the default rules. By adding custom rules, you can block or allow access based on the service or application, source or destination IP addresses, and time of day. You can also choose to log traffic that matches or does not match the rule you have defined. You can change the order of precedence of rules so that the rule that applies most often takes effect first. See "Order of Precedence for Rules" on page 3-11 for more details. To access the rules configuration of the modem router, select Firewall Rules on the main menu, and then click Add for either an outbound or inbound service. The Firewall Rules screen displays. Protecting Your Network 3-5 v1.0, July 2008

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual
Protecting Your Network
3-5
v1.0, July 2008
You can specify one trusted user, which is a computer that will be exempt from blocking and
logging. Since the trusted user will be identified by an IP address, you should configure that
computer with a fixed IP address.
7.
Click
Apply
to save your settings.
Firewall Rules
Firewall rules block or allow specific traffic passing through from one side of the router to the
other. Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively
allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN)
determine what outside resources local users can have access to.
A firewall has two default rules, one for inbound traffic and one for outbound. The default rules of
the modem router are:
•
Inbound. Block all access from outside except responses to requests from the LAN side.
•
Outbound. Allow all access from the LAN side to the outside.
You can define additional rules that will specify exceptions to the default rules. By adding custom
rules, you can block or allow access based on the service or application, source or destination IP
addresses, and time of day. You can also choose to log traffic that matches or does not match the
rule you have defined.
You can change the order of precedence of rules so that the rule that applies most often takes effect
first. See
“Order of Precedence for Rules” on page 3-11
for more details.
To access the rules configuration of the modem router, select
Firewall Rules
on the main menu,
and then click
Add
for either an outbound or inbound service. The Firewall Rules screen displays.