Cisco Intrusion Prevention System Device Manager Configuration Guide for IPS 5.1
Getting Started
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Getting Started

Table Of Contents

Getting Started

Advisory

Introducing IDM

System Requirements

Increasing the Memory Size of the Java Plug-in

Java Plug-In on Windows

Java Plug-In on Linux and Solaris

Initializing the Sensor

Overview

Initializing the Sensor

Verifying Initialization

Logging In to IDM

Overview

Prerequisites

Supported User Role

Logging In to IDM

IDM and Cookies

IDM and Certificates

Understanding Certificates

Validating the CA for Internet Explorer

Validating the CA for Netscape

Validating the CA for Mozilla

Licensing the Sensor

Overview

Service Programs for IPS Products

Supported User Role

Field Definitions

Obtaining and Installing the License Key


Getting Started



Note Installing and Using Cisco Intrusion Prevention System Device Manager Version 5.1 also applies to the IPS section of ASDM. The path in ASDM has two additional initial jumps, Configuration > Features before you reach the IPS section, for example, Configuration > Features > IPS > Network.


This chapter describes IDM and provides information for getting started using IDM. It contains the following sections:

Advisory

Introducing IDM

System Requirements

Increasing the Memory Size of the Java Plug-in

Initializing the Sensor

Logging In to IDM

Licensing the Sensor

Advisory

This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer, and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute, or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return the enclosed items immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at the following website:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance, contact us by sending e-mail to export@cisco.com.

Introducing IDM

IDM is a web-based, Java application that enables you to configure and manage your sensor. The web server for IDM resides on the sensor. You can access it through the Internet Explorer, Netscape, or Mozilla web browsers.

The IDM user interface consists of the File and Help menus, Configuration and Monitoring buttons whose menus open in the left-hand TOC pane, and the configuration pane on the right side of the page. The following four buttons appear next to the Configuration and Monitoring buttons:

Back—Takes you to the pane you were previously on.

Forward—Takes you forward to the next pane you have been on.

Refresh—Loads the current configuration from the sensor.

Help—Opens the online help in a new window.

To configure the sensor, choose Configuration and go through the menus in the left-hand pane. Choose Monitoring and go through the menus in the left-hand pane to configure monitoring.

New configurations do not take effect until you click Apply on the pane you are configuring. Click Reset to discard current changes and return settings to their previous state for that pane.

System Requirements

The following lists the system requirements for IDM:

Windows 2000, Windows XP

Internet Explorer 6.0 with Java Plug-in 1.4.2 or 1.5 or Netscape 7.1 with Java Plug-in 1.4.2 or 1.5

Pentium III or equivalent running at 450 Mhz or higher

256 MB minimum, 512 MB or more strongly recommended

1024 x 768 resolution and 256 colors (minimum)

Sun SPARC Solaris

Sun Solaris 2.8 or 2.9

Mozilla 1.7

256 MB minimum, 512 MB or more strongly recommended

1024 x 768 resolution and 256 colors (minimum)

Linux

Red Hat Linux 9.0 or Red Hat Enterprise Linux WS, Version 3 running GNOME or KDE

Mozilla 1.7

256 MB minimum, 512 MB or more strongly recommended

1024 x 768 resolution and 256 colors (minimum)


Note Although other web browsers may work with IDM, we only support the listed browsers.


Increasing the Memory Size of the Java Plug-in

To correctly run IDM, your browser must have Java Plug-in 1.4.2 or 1.5 installed. By default the Java Plug-in allocates 64 MB of memory to IDM. IDM can run out of memory while in use, which can cause IDM to freeze or display blank screens. Running out of memory can also occur when you click Refresh. An OutofMemoryError message appears in the Java console whenever this occurs. You must change the memory settings of Java Plug-in before using IDM. The mandatory minimum memory size is 256 MB.


Note We recommend that you use Sun Microsystems Java. Using any other version of Java could cause problems with IDM.


This section contains the following topics:

Java Plug-In on Windows

Java Plug-In on Linux and Solaris

Java Plug-In on Windows

To change the settings of Java Plug-in on Windows for Java Plug-in 1.4.2 and 1.5, follow these steps:


Step 1 Close all instances of Internet Explorer or Netscape.

Step 2 Choose Start  > Settings > Control Panel.

Step 3 If you have Java Plug-in 1.4.2 installed:

a. Click Java Plug-in.

The Java Plug-in Control Panel appears.

b. Click the Advanced tab.

c. Enter -Xms256m in the Java RunTime Parameters field.

d. Click Apply and exit the Java Control Panel.

Step 4 If you have Java Plug-in 1.5 installed:

a. Click Java.

The Java Control Panel appears.

b. Click the Java tab.

c. Click View under Java Applet Runtime Settings.

The Java Runtime Settings Panel appears.

d. Enter -Xmxs256m in the Java Runtime Parameters field and then click OK.

e. Click OK and exit the Java Control Panel.


Java Plug-In on Linux and Solaris

To change the settings of Java Plug-in 1.4.2 or 1.5 on Linux and Solaris, follow these steps:


Step 1 Close all instances of Netscape or Mozilla.

Step 2 Bring up Java Plug-in Control Panel by launching the ControlPanel executable file.


Note In the Java 2 SDK, this file is located at <SDK installation directory>/jre/bin/ControlPanel. For example if your Java 2 SDK is installed at /usr/j2se, the full path is /usr/j2se/jre/bin/ControlPanel.



Note In a Java 2 Runtime Environment installation, the file is located at <JRE installation directory>/bin/ControlPanel.


Step 3 If you have Java Plug-in 1.4.2 installed:

a. Click the Advanced tab.

b. Enter -Xms256m in the Java RunTime Parameters field.

c. Click Apply and close the Java Control Panel.

Step 4 If you have Java Plug-in 1.5 installed:

a. Click the Java tab.

b. Click View under Java Applet Runtime Settings.

c. Enter -Xms256m in the Java Runtime Parameters field and then click OK.

d. Click OK and exit the Java Control Panel.


Initializing the Sensor

This section explains how to initialize the sensor, and contains the following topics:

Overview

Initializing the Sensor

Verifying Initialization

Overview

After you have installed the sensor on your network, you must use the setup command to initialize it. With the setup command, you configure basic sensor settings, including the hostname, IP interfaces, Telnet server, web server port, access control lists, time settings, and assign and enable interfaces. After you have initialized the sensor, you can communicate with it over the network. You are then ready to configure intrusion prevention.

Initializing the Sensor

To initialize the sensor, follow these steps:


Step 1 Log in to the sensor using an account with administrator privileges:

Log in to the appliance by using a serial connection or with a monitor and keyboard.


Note You cannot use a monitor and keyboard with IDS-4215, IPS-4240, or IPS-4255.


Session to IDSM-2:

For Catalyst software:

console> enable
console> (enable) session module_number
 
   

For Cisco IOS software:

Router# session slot slot_number processor 1
 
   

Session to NM-CIDS:

router# service-module IDS-Sensor slot_number/port_number session
 
   

Session to AIP-SSM:

asa# session 1
 
   

Note The default username and password are both cisco.


Step 2 The first time you log in to the sensor you are prompted to change the default password.

Passwords must be at least eight characters long and be strong, that is, not be a dictionary word.


Caution If you forget your password, you may have to reimage your sensor unless there is another user with Administrator privileges (see Chapter 13 "Upgrading, Downgrading, and Installing System Images"). The other Administrator can log in and assign a new password to the user who forgot the password. Or, if you have created the service account for support purposes, you can have TAC create a password. For more information, refer to Creating the Service Account.

After you change the password, the sensor# prompt appears.

Step 3 Enter the setup command.

The System Configuration Dialog is displayed.


Note The System Configuration Dialog is an interactive dialog. The default settings are displayed.


 
   
    --- System Configuration Dialog ---
 
   
 
   
At any point you may enter a question mark '?' for help.
User ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
 
   
 
   
Current Configuration:
 
   
 
   
service host
network-settings
host-ip 10.1.9.201/24,10.1.9.1
host-name sensor
telnet-option disabled
ftp-timeout 300
login-banner-text 
exit
time-zone-settings
offset 0
standard-time-zone-name UTC
exit    
summertime-option disabled
ntp-option disabled
exit
service web-server
port 443
exit
 
   
 
   
Current time: Wed May 5 10:25:35 2004
 
   

Step 4 Press the spacebar to get to the following question:

Continue with configuration dialog?[yes]:
 
   

Press the spacebar to show one page at a time. Press Enter to show one line at a time.

Step 5 Enter yes to continue.

Step 6 Specify the hostname.

The hostname is a case-sensitive character string up to 64 characters. Numbers, "_" and "-" are valid, but spaces are not acceptable. The default is sensor.

Step 7 Specify the IP interface.

The IP interface is in the form of IP Address/Netmask,Gateway: X.X.X.X/nn,Y.Y.Y.Y, where X.X.X.X specifies the sensor IP address as a 32-bit address written as 4 octets separated by periods where X = 0-255, nn specifies the number of bits in the netmask, and Y.Y.Y.Y specifies the default gateway as a 32-bit address written as 4 octets separated by periods where Y = 0-255.

Step 8 Specify the Telnet server status.

You can disable or enable Telnet services. The default is disabled.

Step 9 Specify the web server port.

The web server port is the TCP port used by the web server (1 to 65535). The default is 443.


Note If you change the web server port, you must specify the port in the URL address of your browser when you connect to the IDM in the format https://sensor_ip_ address:port (for example, https://10.1.9.201:1040).



Note The web server is configured to use TLS/SSL encryption by default. Setting the port to 80 does not disable the encryption.


Step 10 Enter yes to modify the network access list.

a. If you want to delete an entry, enter the number of the entry and press Enter, or press Enter to get to the Permit line.

b. Enter the IP address and netmask of the network you want to add to the access list.

The IP network interface is in the form of IP Address/Netmask: X.X.X.X/nn, where X.X.X.X specifies the network IP address as a 32-bit address written as 4 octets separated by periods where X = 0-255, nn specifies the number of bits in the netmask for that network.

For example, 10.0.0.0/8 permits all IP addresses on the 10.0.0.0 network (10.0.0.0-10.255.255.255) and 10.1.1.0/24 permits only the IP addresses on the 10.1.1.0 subnet (10.1.1.0-10.1.1.255).

If you want to permit access to a single IP address than the entire network, use a 32-bit netmask. For example, 10.1.1.1/32 permits just the 10.1.1.1 address.

c. Repeat Step b until you have added all networks that you want to add to the access list.

d. Press Enter at a blank permit line to proceed to the next step.

Step 11 Enter yes to modify the system clock settings.

a. Enter yes if you want to use NTP.

You will need the NTP server IP address, the NTP key ID, and the NTP key value. If you do not have those at this time, you can configure NTP later. For the procedure, refer to Configuring the Sensor to Use an NTP Server as its Time Source.

b. Enter yes to modify summertime settings.


Note Summertime is also known as DST. If your location does not use Summertime, go to Step n.


c. Choose recurring, date, or disable to specify how you want to configure summertime settings.

The default is recurring.

d. If you chose recurring, specify the month you want to start summertime settings.

Valid entries are january, february, march, april, may, june, july, august, september, october, november, and december.

The default is april.

e. Specify the week you want to start summertime settings.

Valid entries are first, second, third, fourth, fifth, and last.

The default is first.

f. Specify the day you want to start summertime settings.

Valid entries are sunday, monday, tuesday, wednesday, thursday, friday, and saturday.

The default is sunday.

g. Specify the time you want to start summertime settings.

The default is 02:00:00.


Note The default recurring summertime parameters are correct for time zones in the United States. The default values specify a start time of 2 a.m. on the first Sunday in April, and a stop time of 2 a.m. on the fourth Sunday in October. The default summertime offset is 60 minutes.


h. Specify the month you want summertime settings to end.

Valid entries are january, february, march, april, may, june, july, august, september, october, november, and december.

The default is october.

i. Specify the week you want the summertime settings to end.

Valid entries are first, second, third, fourth, fifth, and last.

The default is last.

j. Specify the day you want the summertime settings to end.

Valid entries are sunday, monday, tuesday, wednesday, thursday, friday, and saturday.

The default is sunday.

k. Specify the time you want summertime settings to end.

l. Specify the DST zone.

The zone name is a character string up to 24 characters long in the pattern [A-Za-z0-9()+:,_/-]+$.

m. Specify the summertime offset.

Specify the summertime offset from UTC in minutes (negative numbers represent time zones west of the Prime Meridian).

The default is 0.

n. Enter yes to modify the system time zone.

o. Specify the standard time zone name.

The zone name is a character string up to 24 characters long.

p. Specify the standard time offset.

The default is 0.

Specify the standard time zone offset from UTC in minutes (negative numbers represent time zones west of the Prime Meridian).

Step 12 Enter yes to modify the virtual sensor configuration (vs0).

The current interface configuration appears:

Current interface configuration
  Command control: GigabitEthernet0/1
  Unused:
    GigabitEthernet2/1
    GigabitEthernet2/0
  Promiscuous:
    GigabitEthernet0/0
  Inline:
    None
  Inline VLAN Pair:
    None
 
   

Step 13 Enter yes to add a promiscuous or monitoring interface.

Step 14 Enter the interface you want to add, for example, GigabitEthernet0/1.

Step 15 Enter yes to add inline interface pairs (appears only if your platform supports inline interface pairs).

a. Enter the inline interface pair name.

b. Enter the inline interface pair description.

The default is Created via setup by user <yourusername>.

c. Enter the name of the first interface in the inline pair, interface1.

d. Enter the name of the second interface in the inline pair, interface2.

e. Repeat Steps a through d to add another inline interface pair, or press Enter for the next option.

Step 16 Enter yes to add inline VLAN pairs (appears only if your platform supports inline VLAN pairs).

A list of interfaces available for inline VLAN pairs appears:

Available Interfaces:
 [1] GigabitEthernet0/0
 [2] GigabitEthernet2/0
 [3] GigabitEthernet2/1
 
   

Step 17 Enter the number of the interface you want to subdivide into inline VLAN pairs.

The current inline VLAN pair configuration for that interface appears:

Inline Vlan Pairs for GigabitEthernet0/0
  None
 
   

a. Enter the subinterface number to add.

b. Enter the inline VLAN pair description.

c. Enter the first VLAN number (vlan1).

d. Enter the second VLAN number (vlan2).

e. Repeat Steps a through d to add another inline VLAN pair on this interface or press Enter for the next option.

Step 18 Enter yes to subdivide another interface. Enter no or press Enter to complete the addition of the inline VLAN pairs.

Your configuration appears with the following options:

[0] Go to the command prompt without saving this config. 
[1] Return back to the setup without saving this config.
[2] Save this configuration and exit setup.
 
   

Step 19 Enter 2 to save the configuration.

Enter your selection[2]: 2 
Configuration Saved.
 
   

Step 20 Enter yes to modify the system date and time.


Note This option is not available on modules or when NTP has been configured. The modules get their time from the router or switch in which they are installed, or from the configured NTP server.


a. Enter the local date (yyyy-mm-dd).

b. Enter the local time (hh:mm:ss).

Step 21 Reboot the sensor:

sensor# reset
Warning: Executing this command will stop all applications and reboot the node.
Continue with reset? []:
 
   

Step 22 Enter yes to continue the reboot.

Step 23 Display the self-signed X.509 certificate (needed by TLS):

sensor# show tls fingerprint
MD5: C4:BC:F2:92:C2:E2:4D:EB:92:0F:E4:86:53:6A:C6:01
SHA1: 64:9B:AC:DE:21:62:0C:D3:57:2E:9B:E5:3D:04:8F:A7:FD:CD:6F:27
 
   

Step 24 Write down the certificate fingerprints.

You need these to check the authenticity of the certificate when connecting to this sensor with a web browser.

Step 25 Apply the most recent service pack and signature update.

For information on how to obtain the most recent software, see Obtaining Cisco IPS Software. The Readme explains how to apply the most recent software update.

You are now ready to configure your sensor for intrusion prevention.


Verifying Initialization

To verify that you initialized your sensor, follow these steps:


Step 1 Log in to the sensor.

For the procedure, refer to Logging In to the Sensor.

Step 2 View your configuration:

sensor# show configuration
generating current config:
! ------------------------------
! Version 5.1(1)
! Current configuration last modified Wed Jun 29 19:18:14 2005
! ------------------------------
display-serial
! ------------------------------
service analysis-engine
virtual-sensor vs0
physical-interface GigabitEthernet0/0 subinterface-number 0
physical-interface GigabitEthernet2/1
exit
exit
! ------------------------------
service authentication
exit
! ------------------------------
service event-action-rules rules0
exit
! ------------------------------
service host
network-settings
host-ip 10.89.149.27/25,10.89.149.126
host-name sensor
telnet-option enabled
access-list 10.0.0.0/8
access-list 64.0.0.0/8
access-list 171.0.0.0/8
exit
time-zone-settings
offset 0
standard-time-zone-name UTC
exit
exit
! ------------------------------
service interface
physical-interfaces GigabitEthernet0/0
admin-state enabled
exit
physical-interfaces GigabitEthernet2/0
admin-state enabled
exit
physical-interfaces GigabitEthernet2/1
admin-state enabled
exit
bypass-mode auto
interface-notifications
missed-percentage-threshold 19
notification-interval 36
idle-interface-delay 33
exit
exit
! ------------------------------
service logger
exit
! ------------------------------
service network-access
exit
! ------------------------------
service notification
exit
! ------------------------------
service signature-definition sig0
signatures 2000 0
alert-severity high
status
enabled true
exit
alert-frequency
summary-mode fire-all
exit
exit
exit
signatures 2004 0
alert-severity low
status
enabled true
exit
alert-frequency
summary-mode fire-all
exit
exit
exit
signatures 3201 1
alert-frequency
summary-mode fire-all
exit
exit
exit
signatures 3301 0
status
enabled true
exit
exit
signatures 3401 0
status
enabled true
retired false
exit
engine string-tcp
event-action produce-alert|request-block-host
exit
alert-frequency
summary-mode fire-all
exit
exit
exit
exit
! ------------------------------
service ssh-known-hosts
exit
! ------------------------------
service trusted-certificates
trusted-certificates 10.89.149.227:443 certificate MIICJDCCAY0CCPy71vhtAwyNMA0GC
SqGSIb3DQEBBQUAMFcxCzAJBgNVBAYTAlVTMRwwGgYDVQQKExNDaXNjbyBTeXN0ZW1zLCBJbmMuMRIwE
AYDVQQLEwlTU00tSVBTMTAxFjAUBgNVBAMTDTEwLjg5LjE0OS4yMjcwHhcNMDUwNjE0MDUwODA3WhcNM
DcwNjE1MDUwODA3WjBXMQswCQYDVQQGEwJVUzEcMBoGA1UEChMTQ2lzY28gU3lzdGVtcywgSW5jLjESM
BAGA1UECxMJU1NNLUlQUzEwMRYwFAYDVQQDEw0xMC44OS4xNDkuMjI3MIGfMA0GCSqGSIb3DQEBAQUAA
4GNADCBiQKBgQCoOobDuZOEPudw63Rlt8K1YsymzR/D9Rlcnad/U0gjAQGfcUh3sG3TXPQewon1fH0+A
nBw8Jxv/ovSB1HJ3ujh5k7BrrB2QMv73ESsBDdxLY6SoX/yYANMf4zPcPCAORJ6DMQHFj44A+3tMZWsC
yaod23S1oYOxx7v5puPDYn3IQIDAQABMA0GCSqGSIb3DQEBBQUAA4GBAHfPM7jawvdfXkYyazqvy3ZOK
kHVwHji12vBLo+biULJG95hbTFlqO+ba3R6nPD3tepgx5zTdOr2onnlFHWD95Ii+PKdUxj7vfDBG8atn
obsEBJ1lAQDiogskdCs4ax1tB4SbEU5y1tktKgcwWEdJpbbNJhzpoRsRICfM3HlOEwN
exit
! ------------------------------
service web-server
exit
sensor#
 
   

Note You can also use the more current-config command to view your configuration.


Step 3 Display the self-signed X.509 certificate (needed by TLS):

sensor# show tls fingerprint
MD5: C4:BC:F2:92:C2:E2:4D:EB:92:0F:E4:86:53:6A:C6:01
SHA1: 64:9B:AC:DE:21:62:0C:D3:57:2E:9B:E5:3D:04:8F:A7:FD:CD:6F:27
 
   

Step 4 Write down the certificate fingerprints.

You need these to check the authenticity of the certificate when connecting to this sensor with a web browser.


Logging In to IDM

This section describes how to log in to IDM, and contains the following topics:

Overview

Prerequisites

Supported User Role

Logging In to IDM

IDM and Cookies

IDM and Certificates

Overview

The number of concurrent CLI sessions is limited based on the platform. IDS-4210, IDS-4215, and NM-CIDS are limited to three concurrent CLI sessions. All other platforms allow ten concurrent sessions.

Prerequisites

IDM is part of the version 5.1 sensor. You must use the setup command to initialize the sensor so that it can communicate with IDM. For the procedure, see Initializing the Sensor.

Supported User Role

The following user roles are supported:

Administrator

Operator

Viewer

Logging In to IDM

To log in to IDM, follow these steps:


Step 1 Open a web browser and enter the sensor IP address:

https://sensor_ip_address
 
   

Note IDM is already installed on the sensor.



Note https://10.1.9.201 is the default address, which you change to reflect your network environment when you initialize the sensor. When you change the web server port, you must specify the port in the URL address of your browser when you connect to IDM in the format https://sensor_ip_ address:port (for example, https://10.1.9.201:1040).


A Security Alert dialog box appears. For more information about security and IDM, see IDM and Certificates.

Step 2 Enter your username and password in the Enter Network Password dialog box and click OK.


Note The default username and password are both cisco. You were prompted to change the password during sensor initialization. For the procedure, see Initializing the Sensor.


The Cisco IDM 5.1 Information window opens and informs you that it is loading IDM. IDM appears in another browser window.

The Memory Warning dialog box displays the following message:

Your current Java memory heap size is less than 256 MB. You must increase the Java memory 
heap size before launching IDM. Click Help for information on changing the Java memory 
heap size.
 
   

Step 3 Click Help to see the procedure for changing the Java memory heap size.

Step 4 Follow the directions for changing the Java memory heap size.

Step 5 Close any browser windows you have open.

Step 6 Relaunch IDM by opening a browser window and typing the sensor IP address.

Step 7 Enter your username and password in the Password Needed - Networking dialog box and click Yes.

A Warning dialog box displays the following message:

There is no license key installed on the sensor. To install a new license, go to 
Configuration > Licensing.
 
   

For the procedure for licensing the sensor, see Licensing the Sensor.

The Status dialog box displays the following message:

Please wait while the IDM is loading the current configuration from the Sensor.
 
   

The main window of IDM appears.


IDM and Cookies

IDM uses cookies to track sessions, which provide a consistent view. IDM uses only session cookies (temporary), not stored cookies. Because the cookies are not stored locally, there is no conflict with your browser cookie policy. The cookies are handled by the IDM Java applet rather than the browser.

IDM and Certificates

This section explains how certificates work with IDM, and contains the following topics:

Understanding Certificates

Validating the CA for Internet Explorer

Validating the CA for Netscape

Validating the CA for Mozilla

Understanding Certificates

IPS 5.1 contains a web server that is running IDM and that the management stations, such as VMS, connect to. Blocking forwarding sensors also connect to the web server of the master blocking sensor. To provide security, this web server uses an encryption protocol known as TLS, which is closely related to SSL protocol. When you enter a URL into the web browser that starts with https://ip_address, the web browser responds by using either TLS or SSL protocol to negotiate an encrypted session with the host.


Caution The web browser initially rejects the certificate presented by IDM because it does not trust the CA.


Note IDM is enabled by default to use TLS and SSL. We highly recommend that you use TLS and SSL.


The process of negotiating an encrypted session in TLS is called "handshaking," because it involves a number of coordinated exchanges between client and server. The server sends its certificate to the client. The client performs the following three-part test on this certificate:

1. Is the issuer identified in the certificate trusted?

Every web browser ships with a list of trusted third-party CAs. If the issuer identified in the certificate is among the list of CAs trusted by your browser, the first test is passed.

2. Is the date within the range of dates during which the certificate is considered valid?

Each certificate contains a Validity field, which is a pair of dates. If the date falls within this range of dates, the second test is passed.

3. Does the common name of the subject identified in the certificate match the URL hostname?

The URL hostname is compared with the subject common name. If they match, the third test is passed.

When you direct your web browser to connect with IDM, the certificate that is returned fails because the sensor issues its own certificate (the sensor is its own CA) and the sensor is not already in the list of CAs trusted by your browser.

When you receive an error message from your browser, you have three options:

Disconnect from the site immediately.

Accept the certificate for the remainder of the web browsing session.

Add the issuer identified in the certificate to the list of trusted CAs of the web browser and trust the certificate until it expires.

The most convenient option is to permanently trust the issuer. However, before you add the issuer, use out-of-band methods to examine the fingerprint of the certificate. This prevents you from being victimized by an attacker posing as a sensor. Confirm that the fingerprint of the certificate appearing in your web browser is the same as the one on your sensor.


Caution If you change the organization name or hostname of the sensor, a new certificate is generated the next time the sensor is rebooted. The next time your web browser connects to IDM, you receive the manual override dialog boxes. You must perform the certificate fingerprint validation again for Internet Explorer, Netscape, and Mozilla.

Validating the CA for Internet Explorer

To use Internet Explorer to validate the certificate fingerprint, follow these steps:


Step 1 Open a web browser and enter the sensor IP address to connect to IDM:

https://sensor_ ip_address
 
   

The Security Alert pane appears.

Step 2 Click View Certificate.

The Certificate Information pane appears.

Step 3 Click the Details tab.

Step 4 Scroll down the list to find Thumbprint and select it.

You can see the thumbprint in the text field.


Note Leave the Certificate pane open.


Step 5 Connect to the sensor in one of the following ways:

Connect a terminal to the console port of the sensor.

Use a keyboard and monitor directly connected to the sensor.

Telnet to the sensor.

Connect through SSH.

Step 6 Display the TLS fingerprint:

sensor# show tls fingerprint
MD5: C4:BC:F2:92:C2:E2:4D:EB:92:0F:E4:86:53:6A:C6:01
SHA1: 64:9B:AC:DE:21:62:0C:D3:57:2E:9B:E5:3D:04:8F:A7:FD:CD:6F:27
 
   

Step 7 Compare the SHA1 fingerprint with the value displayed in the open Certificate thumbprint text field.

You have validated that the certificate that you are about to accept is authentic.


Caution If the fingerprints do not match, you need to determine why. Make sure you are connected to the correct IP address for the sensor. If you are connected to the correct IP address and the fingerprints do not match, this could indicate that your sensor may have been compromised.

Step 8 Click the General tab.

Step 9 Click Install Certificate.

The Certificate Import Wizard appears.

Step 10 Click Next.

The Certificate Store dialog box appears.

Step 11 Select Place all certificates in the following store, and then click Browse.

The Select Certificate Store dialog box appears.

Step 12 Click Trusted Root Certification Authorities, and then click OK.

Step 13 Click Next, and then click Finish.

The Security Warning dialog box appears.

Step 14 Click Yes, and then click OK.

Step 15 Click OK to close the Certificate dialog box.

Step 16 Click Yes to open IDM.


Validating the CA for Netscape

To use Netscape to validate the certificate fingerprint, follow these steps:


Step 1 Open a web browser and enter the sensor IP address to connect to IDM:

https://sensor_ip_address
 
   

The New Site Certificate pane appears.

Step 2 Click Next, and then click More Info.

The View A Certificate pane appears.

Step 3 Connect to the sensor in one of the following ways:

Connect a terminal to the console port of the sensor.

Use a keyboard and monitor directly connected to the sensor.

Telnet to the sensor.

Connect through SSH.

Step 4 Display the TLS fingerprint:

sensor# show tls fingerprint
MD5: C4:BC:F2:92:C2:E2:4D:EB:92:0F:E4:86:53:6A:C6:01
SHA1: 64:9B:AC:DE:21:62:0C:D3:57:2E:9B:E5:3D:04:8F:A7:FD:CD:6F:27
 
   

Step 5 Compare the MD5 fingerprint with the value displayed in the View A Certificate pane.

You have validated that the certificate that you are about to accept is authentic.


Caution If the fingerprints do not match, you need to determine why. Make sure you are connected to the correct IP address for the sensor. If you are connected to the correct IP address and the fingerprints do not match, this could indicate that your sensor may have been compromised.

Step 6 Click OK to close the View A Certificate pane.

Step 7 Click Next and click the Accept this certificate forever (until it expires) radio button.

Step 8 Click Next twice, and then click Finish.


Validating the CA for Mozilla

To use Mozilla to validate the certificate fingerprint, follow these steps:


Step 1 Open a web browser and enter the sensor IP address to connect to IDM:

https://sensor_ip_address
 
   

The Website Certified by an Unknown Authority pane appears.

Step 2 Click Examine Certificate.

The Certificate Viewer pane appears.

Step 3 Connect to the sensor in one of the following ways:

Connect a terminal to the console port of the sensor.

Use a keyboard and monitor directly connected to the sensor.

Telnet to the sensor.

Connect through SSH.

Step 4 Display the TLS fingerprint:

sensor# show tls fingerprint
MD5: C4:BC:F2:92:C2:E2:4D:EB:92:0F:E4:86:53:6A:C6:01
SHA1: 64:9B:AC:DE:21:62:0C:D3:57:2E:9B:E5:3D:04:8F:A7:FD:CD:6F:27
 
   

Step 5 Compare the MD5 fingerprint with the value displayed on the Certificate Viewer General tab.

You have validated that the certificate that you are about to accept is authentic.


Caution If the fingerprints do not match, you need to determine why. Make sure you are connected to the correct IP address for the sensor. If you are connected to the correct IP address and the fingerprints do not match, this could indicate that your sensor may have been compromised.

Step 6 Click Close to close the Certificate Viewer: pane.

Step 7 Select Accept this certificate permanently and then click OK to close the pane.

The login dialog box appears.

Step 8 Enter your username and password in the Prompt dialog box.

Step 9 Click Yes to accept the certificate.


Licensing the Sensor

This section describes how to license the sensor, and contains the following topics:

Overview

Service Programs for IPS Products

Supported User Role

Field Definitions

Obtaining and Installing the License Key

Overview

Although the sensor functions without the license key, you must have a license key to obtain signature updates. To obtain a license key, you must have the following:

Cisco Service for IPS service contract

Contact your reseller, Cisco service or product sales to purchase a contract. For more information, see Service Programs for IPS Products.

Your IPS device serial number

To find the IPS device serial number in IDM, choose Configuration > Licensing, or in the CLI use the show version command.

Valid Cisco.com username and password

Trial license keys are also available. If you cannot get your sensor licensed because of problems with your contract, you can obtain a 60-day trial license that supports signature updates that require licensing.

You can obtain a license key from the Cisco.com licensing server, which is then delivered to the sensor. Or, you can update the license key from a license key provided in a local file. Go to http://www.cisco.com/go/license and click IPS Signature Subscription Service to apply for a license key. For the procedure, see Obtaining and Installing the License Key.

You can view the status of the license key on the Licensing pane in IDM. Whenever you start IDM, you are informed of your license status—whether you have a trial, invalid, or expired license key. With no license key, an invalid license key, or an expired license key, you can continue to use IDM but you cannot download signature updates.

When you enter the CLI, you are informed of your license status, for example, you receive the following message if there is no license installed:

***LICENSE NOTICE***
There is no license key installed on the system.
The system will continue to operate with the currently installed
signature set. A valid license must be obtained in order to apply
signature updates. Please go to http://www.cisco.com/go/license
to obtain a new license or install a license.
 
   

You will continue to see this message until you install a license key.

Service Programs for IPS Products

You must have a Cisco Services for IPS service contract for any IPS product so that you can download a license key and obtain the latest IPS signature updates. If you have a direct relationship with Cisco Systems, contact your account manager or service account manager to purchase the Cisco Services for IPS service contract. If you do not have a direct relationship with Cisco Systems, you can purchase the service account from a one-tier or two-tier partner.

When you purchase the following IPS products you must also purchase a Cisco Services for IPS service contract:

IDS-4215

IPS-4240

IPS-4255

IDSM-2

NM-CIDS

For ASA products, if you purchased one of the following ASA products that do not contain IPS, you must purchase a SMARTnet contract:

ASA5510-K8

ASA5510-DC-K8

ASA5510-SEC-BUN-K9

ASA5520-K8

ASA5520-DC-K8

ASA5520-BUN-K9

ASA5540-K8

ASA5540-DC-K8

ASA5540-BUN-K9


Note SMARTnet provides operating system updates, access to Cisco.com, access to TAC, a nd hardware replacement NBD on site.


If you purchased one of the following ASA products that ships with the AIP-SSM installed or if you purchased AIP-SSM to add to your ASA product, you must purchase the Cisco Services for IPS service contract:

ASA5510-AIP10-K9

ASA5520-AIP10-K9

ASA5520-AIP20-K9

ASA5540-AIP20-K9

ASA-SSM-AIP-10-K9

ASA-SSM-AIP-20-K9


Note Cisco Services for IPS provides IPS signature updates, operating system updates, access to Cisco.com, access to TAC, a nd hardware replacement NBD on site.


For example, if you purchased an ASA-5510 and then later wanted to add IPS and purchased an ASA-SSM-AIP-10-K9, you must now purchase the Cisco Services for IPS service contract.

Once you have the Cisco Services for IPS service contract, you must also have your product serial number to apply for the license key. For the procedure, see Obtaining and Installing the License Key.


Caution If you ever have to RMA your product, the serial number will change. You must then get a new license key for the new serial number.

Supported User Role

You must be Administrator to view license information on the Licensing pane and to install the sensor license key.

Field Definitions

The following fields and buttons are found on the Licensing pane.

Field Descriptions:

Current License—Provides the status of the current license:

License Status—Current license status of the sensor.

Expiration Date—Date when the license key expires (or has expired).

If the key is invalid, no date is displayed.

Serial Number—Serial number of the sensor.

Update License—Specifies from where to obtain the new license key:

Cisco Connection Online—Contacts the license server at Cisco.com for a license key.

License File—Specifies that a license file be used.

Local File Path—Indicates where the local file containing the license key is.

Button Functions:

Download—Lets you download a copy of your license to the computer that IDM is running on and save it to a local file. You can then replace a lost or corrupted license, or reinstall your license after you have reimaged the sensor.

The Download button is disabled unless you have a valid license on the sensor.

Browse Local—Invokes a file browser to find the license key.

Update License—Delivers a new license key to the sensor based on the selected option.

Obtaining and Installing the License Key


Note In addition to a valid Cisco.com username and password, you must also have a Cisco Services for IPS service contract before you can apply for a license key. For more information, see Service Programs for IPS Products.


To obtain and install the license key, follow these steps:


Step 1 Log in to IDM using an account with administrator privileges.

Step 2 Choose Configuration > Licensing.

The Licensing pane displays the status of the current license. If you have already installed your license, you can click Download to save it if needed.

Step 3 Obtain a license key by doing one of the following:

Choose Cisco Connection Online to obtain the license from Cisco.com.

IDM contacts the license server on Cisco.com and sends the server the serial number to obtain the license key. This is the default method. Go to Step 4.

Choose License File to use a license file.

To use this option, you must apply for a license key at www.cisco.com/go/license.

The license key is sent to you in e-mail and you save it to a drive that IDM can access. This option is useful if your computer cannot access Cisco.com. Go to Step 7.

Step 4 Click Update License.

The Licensing dialog box appears.

Step 5 Click Yes to continue.

The Status dialog box informs you that the sensor is trying to connect to Cisco.com. An Information dialog box confirms that the license key has been updated.

Step 6 Click OK.

Step 7 Go to www.cisco.com/go/license.

Step 8 Fill in the required fields.


Caution You must have the correct IPS device serial number because the license key only functions on the device with that number.

Your license key is sent to the e-mail address you specified.

Step 9 Save the license key to a hard-disk drive or a network drive that the client running IDM can access.

Step 10 Log in to IDM.

Step 11 Choose Configuration > Licensing.

Step 12 Under Update License, choose Update From: License File.

Step 13 In the Local File Path field, specify the path to the license file or click Browse Local to browse to the file.

The Select License File Path dialog box appears.

Step 14 Browse to the license file and click Open.

Step 15 Click Update License.