User's Manual

Chapter 6: Using Advanced Setup

You use the settings on the Firewall Add Policy Rule page to

configure your firewall security. In setting your criteria or rules, it is

important to know whether you want to block traffic or allow

traffic into your network. This is controlled by the Traffic

Inbound and Traffic Outbound settings where you choose Allow

or Block. After you determine what you want to do, you then fill

in the other settings to specify what it is that you want to block or

allow.

Suppose you enter Allow in the Traffic Inbound and Outbound

settings and Any in the Src Address setting. This sets the firewall

to allow any traffic into your network. Conversely, suppose you

choose Block for Traffic Inbound, choose Assign for Src

Address and specify a range of IP addresses. This sets the

firewall to block all traffic that has the IP addresses you specified.

The table that follows shows you the criteria that you can enter:

Setting Description

Src Address Source Address lets you specify Any for all

IP addresses or a specific range of IP

addresses from a particular source to be

blocked or allowed.

Des Address Destination Address lets you specify Any

for all IP addresses or a specific range of

IP addresses of a destination to be blocked

or allowed.

Protocol

Protocol lets you specify a protocol to be

blocked or allowed. eq is equals and neq is

not equal. For example, eq TCP will allow

only TCP. neq TCP will allow everything

including TCP.

Source Port

Lets you block or allow traffic from a

particular port.

Destination Port

Lets you block or allow traffic going to a

destination port.

Traffic Inbound

Lets you block or allow inbound traffic

based on the rules you set up in the policy.

Traffic Outbound

Lets you block or allow outbound traffic

based on the rules you set up in the policy.