Such malware is blocked by the Ask action. Click the arrow next to New. When the page shows both Rule Bases, click New in the appropriate table. Click the links in the rule summary or the table cells to select network objects or options that fill out the rule base fields. See the descriptions above. Note - The Application field is relevant only for outgoing rules. In the Source field, you can optionally select between entering a manual IP address network , a network object, or user group to configure a user based policy, make sure the User Awareness blade is activated.
Users can be defined locally on the appliance or externally in an Active Directory. In the Write a comment field, enter optional text that describes the rule.
This is shown as a comment below the rule in the Access Policy. To limit the rule to a certain time range, select Apply only during this time and select the start and end times. In outgoing rules, to limit the download traffic rate, select Limit download traffic of applications to and enter the Kpbs rate.
In outgoing rules, to limit the upload traffic rate, select Limit upload traffic of applications to and enter the Kpbs rate. In incoming rules, to match only for encrypted VPN traffic, select Match only for encrypted traffic. Note - For Access Policy rules, you can only edit the tracking options for automatically generated rules.
To disable a manually defined rule that you have added to the rule base, select the rule and click Disable. To enable a manually defined rule that you previously disabled, select the rule and click Enable. You can import updatable objects to use in the firewall policy rules. Currently, only Geo protection is available. You can select a specific country as a source or destination for any firewall rule. If necessary, specify the rule order.
Click Updatable objects. A list of country names shows. Click the checkbox next to the name to select the country. Select the Action and Log. You can customize messages to let the Security Gateway communicate with users. This helps users understand that some websites are against the company's security policy. It also tells users about the changing Internet policy for websites and applications. When you configure such messages, the user's Internet browser shows the messages in a new window when traffic is matched on a rule using one of the message related actions.
Shows an informative message to users. Users can continue to the application or cancel the request. Shows a message to users and asks them if they want to continue with the request or not.
See above for more details. Click Customize messages in the Outgoing access to the Internet section. Body - Keep the default or enter different body text. You can click Optional keywords for a list of keywords that you can add in the body text to give the user more information.
Ignore text only for Ask - This is the confirmation message for the Ask user message. Keep the default text or enter different text. User must enter a reason only for Ask - Select this checkbox if users must enter an explanation for their activity. The user message contains a text box for entering the reason. Fallback action - Select an alternative action Block or Accept for when the notification cannot be shown in the browser or application that caused the notification, most notably in non-web applications.
If it is determined that the notification cannot be shown in the browser or application, the behavior is:. If the Fallback action is Accept - The user can access the website or application.
If the Fallback action is Block - The Security Gateway tries to show the notification in the application that caused the notification. If it cannot, the website or application is blocked, and the user does not see a notification. Frequency - You can set the number of times that users get notifications for accessing applications that are not permitted by the policy.
The options are:. For example, in a rule that contains in the Application - Social Networking category, if you select Once a day as the frequency, a user who accesses Facebook multiple times get one notification. Redirect the user to URL - You can redirect the user to an external portal, not on the gateway. The specified URL can be an external system. It gets authentications credentials from the user, such as a user name or password.
It sends this information to the gateway. Only applicable for the Block and Inform notification. Click the Customize tab to customize a logo for all portals shown by the appliance Hotspot and captive portal used by User Awareness. Click Upload , browse to the logo file and click Apply. If necessary, you can revert to the default logo by clicking Use Default. Account Settings Logout. All Files. Submit Search. You are here:. In Standard mode, you can configure in various pages a more granular default policy: Traffic from specific sources into your organization can be blocked or accepted by default.
Within each section there are these sections: Manual Rules - Rules that you manually create. These are the fields that manage the rules for the Firewall Access Policy. The first pool is used for these services:. If the connection uses one of these services, and the source port number is below , then a port number is assigned from the first pool. An external computer in the Internet sends a packet to The Firewall translates the IP address to Internal computer A sends back a packet to the external computer.
The Firewall intercepts the packet and translates the source IP address to Internal computer B The Firewall intercepts the packet translates the source IP address to Firewall translates this address to External computers cannot start a connection to an internal computer.
Internal computer A The external computer sends back a packet to The Firewall translates the packet to SmartDashboard creates two automatic rules for Static NAT to translate both the source and destination of the packets. One rule is created for Hide NAT to translate the source of the packets.
For network and address range objects, SmartDashboard creates a different rule to NOT translate intranet traffic. IP addresses for computers on the same object are not translated. Automatic and manual rules are enforced differently.
Automatic rules can use bidirectional NAT to let two rules be enforced for a connection. SmartDashboard can automatically create the NAT rules, or you can create them manually. SmartDashboard can automatically create and configure the NAT rules for a network. Then configure the Firewall Rule Base to allow traffic to the applicable objects. The General Properties window opens.
The Policy page opens and shows the Firewall Rule Base. For large and complex networks, it can be impractical to configure the Hide NAT settings for all the internal IP addresses. An easy alternative is to enable a Firewall to automatically Hide NAT for all traffic with external networks.
The Firewall translates all traffic that goes through an external interface to the valid IP address of that interface. In this sample configuration, computers in internal networks open connections to external servers on the Internet. The source IP addresses of internal clients are translated to the IP address of the external interface. There are two external interfaces The source IP address is translated to the applicable external interface IP address: The Gateway Properties window opens.
The NAT page opens. For some deployments, it is necessary to manually define the NAT rules. Then configure the Firewall Rule Base to allow traffic to the applicable translated objects with these valid IP addresses.
This procedure explains how to configure manual Static NAT for a web server. The General Properties window of the new object opens. The goal for this sample configuration is to let external computers access a web and mail server in a DMZ network from one IP address. Giving a machine in the internal network an external IP address using NAT makes that machine appear to the Internet to be on the external network, or the Internet side of the firewall.
When NAT is configured automatically, the Security Gateway replies on behalf of translated network objects to ARP requests from the Internet router for the address of the internal machine. If you are using manual rules, you must configure proxy ARPs to associate the translated IP address with the MAC address of the Security Gateway interface that is on the same network as the translated addresses. NAT is performed after anti-spoofing checks, which are performed only on the source IP address of the packet.
This means that spoofing protection is configured on the interfaces of the Security Gateway in the same way as NAT. The following sections describe how to allow connections in both directions between statically translated objects nodes, networks or address ranges on different Security Gateway interfaces. If two internal networks have overlapping or partially overlapping IP addresses, Security Gateway enables:. For example, assume both Network A and Network B share the same address space Instead, overlapping NAT must be performed on a per interface basis.
Users in Network A who want to communicate with users in Network B must use the Users in Network B who want to communicate with users in Network A must use the The Security Gateway translates the IP addresses in the following way for each individual interface:.
Overlapping NAT is not configured for this interface. Instead, use NAT Hide in the normal way not on a per-interface basis to hide source addresses behind the interface's IP address This section describes how to enable communication between internal networks, and between an internal network and the Internet.
If user A, at IP address Security Gateway enforces the security policy for packets from network Security gateway enforces the security policy for packets from network These sections contain sample routing commands for Windows and Linux operating systems for other operating systems, use the equivalent commands.
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