Configuring Firewall to Fetch Configuration and Unused Rules

In a Firewall device, there could be numerous rules/access-list defined to secure the network from external attacks. Out of the rules/access-list configured, there could be certain rules which would be most used and certain which are least used or never used. Firewall Analyzer captures the most used rules in the Top Used Rules as they would be available in the logs generated by Firewall. But, to get the  Unused Rules, one needs to configure the Firewall Analyzer to fetch the complete rules from the device. Once, Firewall Analyzer fetches the complete rules configured in the Firewall, it can provide the Unused Rules view.

To view Unused Firewall Rules, configure the Firewall Analyzer by following the steps given below:

• In the Firewall Analyzer web client, select the Settings tab.
• In Settings screen, select the System Settings > Device Rule link. Device Rule Info page appears.
• On the top, there are links provided to add device info to fetch rules and to delete the device info. The links are:
  • Device Info
  • Device Info
  • Profile
  • Assign Profile
  • List Profile
  • Change Management Configurations

Device Rule Info

Devices Details

After entering and saving the Device Info values through the Firewall Analyzer GUI, the device, with details to fetch rules, is listed in the Device Details table. The details of the columns of the Device Details table are:

Virtual FWs

• When you click the Virtual FWs number displayed in the Device Details list you will see the details of the virtual domains in a pop-up window which will provide you with all the options (see screen shot below).

Add Device Info

1. Click the Add Device Info link to add the device information to fetch the rules and configurations using Telnet, Telnet-TFTP, SSH, SSH-TFTP, SCP. The Enter Device Details screen opens up.
2. Select the Firewall device in the Select Device drop down list.
3. In the Fetch Rules/Config drop down list, there will be two options to fetch rules and configurations
   1. From Device
   2. From File

Select the option as per your requirement.

Next, there will be two tabs, Credentials and Choose Report.

The Credetials tab

You can configure the individual device credentials to fetch the rules and configuration from the device or you can create a common profile of device credential which can be used for a group of devices to fetch rules.

Fetch Rules/Config > From Device

4. Select the protocol (Telnet, Telnet-TFTP, SSH, SSH-TFTP, SCP) in the Protocol drop down list.
5. Select the profile in the Use Profile drop down list. If there is no profile available or you want to create and use a new profile, click New Profile link besides the combo box.
6. Enter the Device Info. The Device Info has been split into two sections:

• Primary Info - deal with parameters that are necessary to establish communication with the device. Details such as Login Name, Password, Prompt, Enable UserName, Enable Password and Enable Prompt are classified as basic details.
  
• Secondary Info - certain parameters usually take standard values. All such parameters have been classified under 'Secondary Info'. Port, login prompt, enable user prompt, password prompt, enable password prompt values are usually assigned with certain Standard Values by default. Such standard values have been filled for these parameters. Most of the devices would work well with these values and you need not edit these details unless you want to provide different set of details.

Primary Info

Secondary Info

Click the link Secondary Info to view/enter values for these parameters. All the parameters are usually assigned with certain Standard Values by default. Such standard values have been filled for these parameters. Most of the devices would work well with these values and you need not edit these details unless you want to provide different set of details.

7. The command to be executed, to fetch the Firewall rules is displayed in the Command field.
8. Click Test button, to test the validity of the device info.

The Choose Report tab

9. Select Fetch Rules from the device check box to fetch the rules from the Firewall device.
   If commands are not available to fetch rules from the device, Choose File button automatically appears besides the select item. If the file is not yet selected, 'No file chosen' message appears besides the button. If it is not supported for the particular device [ Not Supported ] messages appears besides the select item.
10. Select Generate Compliance Report check box to generate Firewall Compliance report. If commands are not available to fetch configurations from the device, Choose File button automatically appears besides the select item. If the file is not yet selected, 'No file chosen' message appears besides the button. If it is not supported for the particular device [ Not Supported ] messages appears besides the select item.

11. Select Generate Change Management Report check box to generate configuration change management report. In this section, Notification Options and Scheduling Options, for the configuration changes of the device, are available. If commands are not available to fetch configurations from the device, there will not be any Change Management report.
12. Under the Notification Options, enter the Email address of the user(s), who need to be informed via Email when any configuration change happens, in the Mail To: text box. Click the link Click here to configure to configure mail server for Firewall Analyzer, enter the cellular phone number of the user(s), who need to be informed via SMS when any configuration change happens, in the SMS To: text box. Click the link Click here to configure to configure SMS server for Firewall Analyzer.
13. Under the Scheduling Options, enter the Email address of the user(s), to whom the report to be sent via em ail when a scheduled configuration change report is generated, in the Mail To: text box. Click the link Click here to configure to configure mail server for Firewall Analyzer. Select the schedule for report generation using the Get Report for Every <1 to 31> day(s) @ <0 to 23> Hrs <0 to 50> Min. (For example: If you configure like Every 10 day(s) @ 2 Hrs 30 Min, the reports will be generated for the device, every 10 days at 02:30 AM), For the <Previous Week, Last 7 Days, Previous Month, Last 30 Days> for the selected duration. Select the report format to be sent via em ail using the PDF, CSV radio buttons.
14. Click Save button to apply the values. Click Close button to close the adding device info screen.

Fetch Rules > From File

15. In the From File tab, you will find the two options: Import Rule File and Import Configuration File.
16. In the Import Rule File option, click the Browse button to locate the file which contains the rules details of the Firewall device.
17. In the Import Configuration File option, click the Browse button to locate the file which contains the complete configuration details of the Firewall device.
18. Click Import button to import the rule/configuration file. Click Cancel to cancel the rules/configuration details file importing operation.

For the complete procedure to export the configuration from various Firewalls in file format, refer the Exporting Configuration Files page.

Delete Device Info

• To delete the Device Info from the list of Device Details table, select the check boxes of the respective Device Info entries and click the Delete Info link.

Testing the validity of device info

Device Info values entered through the Firewall Analyzer GUI should be accurate. Otherwise, Firewall Analyzer will not be able to establish connection with the device. To ensure the correctness of device info values, Firewall Analyzer provides the testing option. After entering the device info, you can test the values during which Firewall Analyzer will indicate if the values entered are valid. It will pinpoint the invalid values and you can carry out corrections accordingly.

To test the validity of device info, follow the procedure given below:

• After providing the device info, click Test button.
  

This updates the device info values in the database and then carries out the testing. The result of the testing will be shown in a separate window as below:



The testing result indicates valid device info values with a green 'tick' mark. The invalid values are marked as red cross marks. You need to change the invalid values. Alongside, the CLI command execution result (through which Firewall Analyzer ascertains the validity of device info values) is also displayed.

List Profile

Credential Profile Listing

Click the List Profile link to view the list device profiles to fetch the rules information from the devices. The Credential Profile Listing screen opens up.

On the top, there are links provided to add device info to fetch rules and to delete the device info. The links are:

• Device Info
• Profile
• Assign Profile
• Delete Profile
• List Device Info

After creating and saving the Device Profile values through the Firewall Analyzer GUI, the profiles, edit option, view/associate profile with devices to fetch rules, is listed in the Device Profile Details table. The details of the columns of the Device Profile Details table are:

Delete Profile

• To delete the Device Profile from the list of Device Profile Details table, select the check boxes of the respective Device Profile entries and click the Delete Profile link.

Add Device Info Profile

Click the Add Device Info Profile link or New Profile link to create device info profiles to fetch the rules information from a set of common devices. The Add New Profile screen pops up.

You can configure the individual device credentials to fetch the rules from the device or you can create a common profile of device credential which can be used for a group of devices to fetch rules.

1. Enter the name of the new profile in the Profile Name field. Enter the description of the profile in the Profile Description text area.
2. Select the protocol (Telnet, Telnet-TFTP, SSH, SSH-TFTP, SCP) in the Protocol drop down list.
3. Enter the Device Profile Info. The Device Profile Info has been split into two sections:
   • Primary Info - deal with parameters that are necessary to establish communication with a common set of devices. Details such as Login Name, Password, Prompt, Enable UserName, Enable Password and Enable Prompt are classified as basic details.
     
   • Secondary Info - certain parameters usually take standard values. All such parameters have been classified under 'Secondary Info'. Port, login prompt, enable user prompt, password prompt, enable password prompt values are usually assigned with certain Standard Values by default. Such standard values have been filled for these parameters. Most of the devices would work well with these values and you need not edit these details unless you want to provide different set of details.

Primary Info

 

Device Info	Description
Login Name	While establishing connection with a common set of devices, if the devices ask for a Login Name, set a value for this parameter. This parameter is Optional.
Password	To set the Password for accessing the common set of devices.
Prompt	The prompt that appears after successful login.
Banner Input	The input for banner during the CLI operation to proceed further
Banner Prompt	The banner prompt that appears during the CLI operation
Enable UserName	When entering into privileged mode, some common set of devices require UserName to be entered. Provide the username if prompted; otherwise leave this field empty.
Enable Password	This is for entering into privileged mode to perform configuration operations like backup/upload. This parameter is mandatory.
Enable Prompt	This is the prompt that will appear after going into enable mode.

 

Both Primary and Secondary credentials (Login Name and Password) of the Firewalls are encrypted and stored in the Firewall Analyzer.

 

Secondary Info

 

Click the link Secondary Info to view/enter values for these parameters. All the parameters are usually assigned with certain Standard Values by default. Such standard values have been filled for these parameters. Most of the devices would work well with these values and you need not edit these details unless you want to provide different set of details.

 

Device Info	Description
Port (Telnet, Telnet-TFTP, SSH, SSH-TFTP, SCP)	Port number: 23 (for Telnet, Telnet-TFTP) and 22 (for SSH, SSH-TFTP) by default.
Login Prompt	The text/symbol that appears on the console to get the typed login name is referred as login prompt. For example, Login:
Password Prompt	The text displayed on the console when asking for password. For example, Password:
Enable User Prompt	The text displayed on the console when asking for Enable UserName. For example, UserName:
Enable Password Prompt	The text displayed on the console when asking for password. For example, Password:
Select Device Type	Select the type of device (Cisco/Fortigate/Netscreen/Juniper) from the drop down list.

4. The command to be executed, to fetch the Firewall rules is displayed in the Command field.
5. Click Associate Device button to assign devices to this profile. The procedure is given in the Assign Profile topic below.
6. Click Save button to apply the values to the device info profile. Click Cancel to cancel the adding device profile info operation.

Assign Profile

Click the Assign Profile link to associate devices to device profiles to fetch the rules information from the devices. The Associate Profiles to Devices screen opens up.

1. In the Selected Profile combo box, select the profile to be associated with the devices. If there is no profile available or you want to create and use a new profile, click New Profile link besides the combo box.
2. If you want to fetch the rules/configurations from the individual virtual Firewalls (virtual domain) separately, select the option 'Display Virtual Domains in the below resources list.' It lists both the virtual Firewalls (virtual domain) and the physical devices in the Unassigned Devices & Assigned Devices list.
3. Select the devices, which you want to assign/re-assign to the selected profile. All the available devices are listed in the Unassigned Device(s) list. Select the devices and click right arrow. The selected devices are moved to the Assigned Device(s) list. If you want to remove any device from the Assigned Device(s) list, select the devices and click left arrow. The removed devices will be moved back to the Unassigned Device(s) list.
4. Fetch Rules
   • Select whether the rules are fetched once or periodically.
   • Select Once radio button to fetch the rules once.
   • Select Periodic radio button to fetch the rules periodically. The periodicity option opens up. Select the periodicity of rules fetching from the combo boxes given in: Every <1 to 31> day(s) @ <0 to 23> Hrs <0 to 50> Min. (For example: If you configure like Every 10 day(s) @ 2 Hrs 30 Min, the rules will be fetched from the device, every 10 days at 02:30 AM)
5. Compliance Reports

   The Compliance Reports related to Firewall Rules/Policies Configuration/Changes.

6. Click Map button to assign the selected devices to the selected profile. Click Cancel to cancel the assigning devices to the profile operation.

After associating the devices to Device Profiles the profiles and the associated devices are listed in the Device Profile Details table.

Procedure to enable Nipper

In the Compliance Report field, the following message appears: 'Unable to generate compliance report. Reason: Failed to locate Nipper. Click here to enable it'. What should I do?

Supported Platform:

• Ubuntu 9.1.10
• Fedora 12
• OpenSuSE 11.2
• CentOS 5.5

Prerequisite:

The GNU/Linux platform requires Qt 4.5 to be installed. Your package manager system should automatically install this for you.

Steps:

1. Download Nipper libraries from https://www.manageengine.com/products/firewall/download-third-party-utilities.html according to your platform
2. Install the rpm or deb according to your Operating System
3. Connect to Firewall Analyzer web client and type the following URL: 'http://<host name>:8500/fw/userConfig.do'
4. In that, there is an option to provide the path in which you have installed 'Nipper'. For ex: '/usr/bin/nipper'
5. Click on Save link