With group access policies, all traffic is allowed by default. Additional allow and deny policies could be created by destination address or address range and by service type.
The most specific policy takes precedence over less specific policies. For example, a policy that applies to only one IP address has priority over a policy that applies to a range of IP addresses. If there are two policies that apply to a single IP address, then a policy for a specific service (for example RDP) takes precedence over a policy that applies to all services.
User policies take precedence over group policies and group policies take precedence over global policies, regardless of the policy definition. A user policy that allows access to all IP addresses takes precedence over a group policy that denies access to a single IP address.
To define group access policies
On the Policies page, click Add Policy. The Add User Policy screen is displayed.
In the Apply Policy To drop-down menu, select whether the policy is applied to an individual host, a range of addresses, all addresses, a network object, a server path, or a URL object. You can also select an individual IPv6 host, a range of IPv6 addresses, or all IPv6 addresses. The Add Policy window changes depending on what type of object you select in the Apply Policy To drop-down menu.