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Introduction

Cisco Identity Services Engine (ISE) is a security policy management platform that provides secure access to network resources. Cisco ISE allows enterprises to gather real-time contextual information from networks, users, and devices. An administrator can then use this information to make proactive governance decisions by creating access control policies for the various network elements, including access switches, Cisco Wireless Controllers, Virtual Private Network (VPN) gateways, and data center switches. Cisco ISE acts as the policy manager in the Cisco TrustSec solution and supports TrustSec software-defined segmentation.

Cisco ISE is available on Secure Network Server appliances with different performance characterizations, and also as software that can be run on a virtual machine (VM). Note that you can add more appliances to a deployment for better performance.

Cisco ISE has a scalable architecture that supports standalone and distributed deployments, but with centralized configuration and management. It also enables the configuration and management of distinct personas and services, thereby giving you the ability to create and apply services where needed, in a network, but operate the Cisco ISE deployment as a complete and coordinated system.

For more information about the features that are supported in this Cisco ISE release, see the Cisco Identity Services Engine Administrator Guide.

System Requirements

For an uninterrupted Cisco ISE configuration, ensure that the following system requirements are fulfilled.

For more details on hardware platforms and installation in this Cisco ISE release, see the Cisco Identity Services Engine Hardware Installation Guide.

Supported Hardware

Cisco ISE, Release 2.7, requires the following platforms.

Table 1. Supported Hardware Platforms and Personas

Hardware Platform

Persona

Configuration

Cisco SNS-3515-K9 (small)

Any

For the appliance hardware specifications, see the "Cisco SNS-3500 and SNS-3600 Series Appliances" chapter in the Cisco Identity Services Engine Hardware Installation Guide.

Cisco SNS-3595-K9 (large)

Cisco SNS-3615-K9 (small)

Cisco SNS-3655-K9 (medium)

Cisco SNS-3695-K9 (large)

Cisco ISE-VM-K9 (VMware, Linux KVM, Microsoft Hyper-V)

After installation, you can configure Cisco ISE with specific component personas such as Administration, Monitoring, and pxGrid on the platforms that are listed in the above table. In addition to these personas, Cisco ISE contains other types of personas within Policy Service, such as Profiling Service, Session Services, Threat-Centric NAC Service, SXP Service for TrustSec, TACACS+ Device Admin Service, and Passive Identity Service.


Note

  • Cisco Secured Network Server (SNS) 3400 Series appliances are not supported in Cisco ISE, Release 2.4, and later.

  • Memory allocation of less than 16 GB is not supported for VM appliance configurations. In the event of a Cisco ISE behavior issue, all the users will be required to change the allocated memory to at least 16 GB before opening a case with the Cisco Technical Assistance Center.

  • Legacy Access Control Server (ACS) and Network Access Control (NAC) appliances (including the Cisco ISE 3300 Series) are not supported in Cisco ISE, Release 2.0, and later.


Federal Information Processing Standard Mode Support

Cisco ISE uses embedded Federal Information Processing Standard (FIPS) 140-2-validated cryptographic module, Cisco FIPS Object Module Version 6.2 (Certificate #2984). For details about the FIPS compliance claims, see Global Government Certifications.

When FIPS mode is enabled on Cisco ISE, consider the following:

  • All non-FIPS-compliant cipher suites will be disabled.

  • Certificates and private keys must use only FIPS-compliant hash and encryption algorithms.

  • RSA Private keys must be of 2048 bits or greater.

  • Elliptical Curve Digital Signature Algorithm (ECDSA) Private keys must be of 224 bits or greater.

  • Diffie–Hellman Ephemeral (DHE) ciphers work with Diffie–Hellman (DH) parameters of 2048 bits or greater.

  • SHA1 is not allowed to generate ISE local server certificates.

  • The anonymous PAC provisioning option in EAP-FAST is disabled.

  • The Local SSH server operates in FIPS mode.

  • The following protocols are not supported in FIPS mode for RADIUS:

    • EAP-MD5

    • PAP

    • CHAP

    • MS-CHAPv1

    • MS-CHAPv2

    • LEAP

Supported Virtual Environments

Cisco ISE supports the following virtual environment platforms:

  • ESXi 5.x (5.1 U2 and later support RHEL 7), 6.x

  • Microsoft Hyper-V on Microsoft Windows Server 2012 R2 and later

  • KVM on QEMU 1.5.3-160

Supported Browsers

The supported browsers for the Admin portal include:

  • Mozilla Firefox 69 and earlier versions

  • Mozilla Firefox ESR 60.9 and earlier versions

  • Google Chrome 77 and earlier versions

  • Microsoft Internet Explorer 10.x and 11.x

  • Microsoft Edge beta 77 and earlier versions


Note

  • If you are using Internet Explorer 10.x, enable TLS 1.1 and TLS 1.2, and disable SSL 3.0 and TLS 1.0 (Internet Options > Advanced).

  • If you use Chrome 65.0.3325.189, you may be unable to view guest account details in the print preview section.

  • When self-signed certificates are used, Cisco ISE portal may fail to launch in Microsoft Edge beta 77 browser even if URL redirection is successful. To resolve this issue:

    1. Add both DNS name and IP address in the Subject Alternative Name (SAN) field.

    2. After the ISE services are restarted, redirect the portal in a different browser.

    3. Choose View Certificate > Details and copy the certificate by selecting the base-64 encoded option.

    4. Install the certificate in Trusted path and relaunch the browser.

  • You might see a warning message while downloading an executable (EXE) file in Google Chrome 76 or later. To resolve this issue:

    1. In your browser, click the Settings menu at the top-right corner.

    2. At the bottom of the Settings window, click Advanced.

    3. Under Downloads, check the Ask Where to Save Each File before Downloading check box.


Support for Microsoft Active Directory

Cisco ISE works with Microsoft Active Directory servers 2003, 2003 R2, 2008, 2008 R2, 2012, 2012 R2, and 2016 at all functional levels.


Note

  • It is recommended that you upgrade Windows server to a supported version as Microsoft no longer supports Window server 2003 and 2003 R2. .

  • Microsoft Active Directory Version 2000 or its functional level is not supported by Cisco ISE.


Cisco ISE supports multidomain forest integration with Active Directory infrastructure to support authentication and attribute collection across large enterprise networks. Cisco ISE supports up to 50 domain join points.

Improved User Identification

Cisco ISE can identify Active Directory users when a username is not unique. Duplicate usernames are common when using short usernames in a multidomain Active Directory environment. You can identify users by Software Asset Management (SAM), Customer Name (CN), or both. Cisco ISE uses the attributes that you provide to uniquely identify a user.

Update the value of the following:

  • SAM: Update this value to use only the SAM in the query (the default).

  • CN: Update this value to use only CN in the query.

  • CNSAM: Update this value to use CN and SAM in the query.

To configure the attributes mentioned above for identifying Active Directory users, update the IdentityLookupField parameter in the registry on the server that is running Active Directory:

REGISTRY.Services\lsass\Parameters\Providers\ActiveDirectory\IdentityLookupField

Supported Ciphers

In a clean or fresh install of Cisco ISE, SHA1 ciphers are disabled by default. However, in case of an upgrade from an existing version of Cisco ISE, the SHA1 ciphers are preset to the options from the earlier version. You can view and change the SHA1 ciphers settings using the Allow SHA1 Ciphers field (Administration > System > Settings > Security Settings).

What is New in Cisco ISE, Release 2.7?

Auto-Logon of Self-Registered Guest after Sponsor Approval

You can now enable automatic logon for a self-registered guest after sponsor approval.

Business Outcome

The guest user is automatically logged in when the sponsor approves the guest access request. This simplifies the process and improves customer experience.

Cisco Support Diagnostics Connector

The Cisco Support Diagnostics Connector helps Cisco Technical Assistance Center (TAC) and Cisco support engineers to obtain deployment information from the primary administration node.

Business outcome

TAC can now get support information of any particular node in a deployment through the connector. This data enables quicker and better troubleshooting.

CLI Show Logging Enhancement

When you run the show logging command in the Command Line Interface (CLI), the content is displayed in the Unix less environment. You can see the supported less commands by typing “H”.

Business Outcome

Less is more useful for viewing the content of large files. This saves time when examining log files.

EAP TEAP Support

Cisco ISE 2.7 supports the Tunnel Extensible Authentication Protocol (TEAP). The type-length-value (TLV) objects are used within the tunnel to transport authentication-related data between the EAP peer and the EAP server. You can use EAP-MS-CHAPv2 or EAP-TLS as the inner method. EAP chaining is supported for TEAP. EAP chaining allows Cisco ISE to run both the inner methods for user and machine authentication inside the same TEAP tunnel. This enables Cisco ISE to correlate the authentication results and apply the appropriate authorization policy, using the EAPChainingResult attribute.

Business Outcome

TEAP is a tunnel-based EAP method that enables secure communication between a peer and a server by using the Transport Layer Security (TLS) protocol to establish a tunnel and encrypt further communications.

Endpoint Ownership Enhancement

The Endpoint Ownership information is now stored across all the Policy Service nodes (PSNs) with the help of the Light Session Directory (LSD).

Business Outcome

This avoids endpoint ownership flapping.

Feed Service Update

If you have customized your profiler conditions and do not want the profiler feed to replace those conditions, you can manually download OUI updates without downloading the policy updates.

Business Outcome

Improved profiler accuracy with less overhead.

Grace Access

You can grant 5 to 30 minutes of internet access to self-registered guests who are waiting for sponsor approval to your corporate network.

Business Outcome

The guest users can access the internet while waiting for approval.

Guest Password Recovery

You can now enable the Reset Password option in the Guest portal for self-registered guests. Self-registered guests with valid guest account can use this option when they forget their password. When you click this option, the self-registration page is launched. You can enter your phone number or email address (whichever you are registered with) and enter a new password.

Business Outcome

Improves the customer experience and reduces calls to Customer Support team.

Interactive Help

The Interactive Help provides tips and step-by-step guidance to complete tasks with ease.

Business Outcome

This helps the end users to easily understand the work flow and complete their tasks with ease.

Phone Number as the Guest User Identifier

In addition to email address or username, guest users can now use their phone numbers as their user ID for guest access.

Business Outcome

Guest users can now use their mobile numbers as their user ID. This makes it easier for them to remember their user ID.

Profiler Forwarder Persistence Queue

The Profiler Forwarder Persistence Queue stores incoming events before they are sent to the profiler module for further processing.

Business Outcome

This reduces the loss of events due to a sudden burst of events.

Role Based Access Policy

In the Cisco ISE admin portal, the Policy menu option under Administration > Admin Access > Authorization has been renamed to RBAC Policy. The RBAC Policy window is used to add and configure policies for administrator groups.

Secure SMTP

Guest email notifications can now be sent through a secure SMTP server.

Business Outcome

Improved security for Guest emails in your network.

Secure Unlock Client

The Secure Unlock Client mechanism is used to provide root shell access on Cisco ISE CLI for a certain period of time.

Business Outcome

The Secure Unlock client feature has been implemented using the Consent Token tool, which securely grants privileged access for Cisco products in a trusted manner.

TrustSec Enhancements

The HTTPS REST API replaces the existing RADUIS protocol to provide all the required TrustSec information to the network devices.

Business Outcome

It enhances the efficiency and ability to download large configurations in a short period of time as compared to the existing RADIUS protocol.

Known Limitations and Workarounds

Radius EAP Authentication Performance when Using Default Self-Signed Certificate

In Cisco ISE 2.7, the default self-signed certificate key size is increased to 4096 for enhanced security. Radius EAP authentication performance might be affected, if the default self-signed certificate is used for EAP authentication.

Few TLS Ciphers Cannot be Disabled

The following ciphers cannot be disabled in Cisco ISE:

  • TLS_RSA_WITH_AES_128_CBC_SHA256

  • TLS_RSA_WITH_AES_256_CBC_SHA256

The Cisco ISE scenarios that could use these ciphers include:
  • Cisco ISE as an EAP or ERS server

  • Cisco ISE downloads Certificate Revocation List from an HTTPS or a secure LDAP server

  • Cisco ISE as a secure TCP syslog or LDAP client

The Cisco ISE components that could use these ciphers include: Admin UI, all portals, MDM client, pxGrid, and PassiveID Agent.

Security Group Access Control List

When you try to create a Security Group ACL (SGACL), sometimes the following error message is displayed:

Failed to create policy, CFS provision failed.

This is because creating and updating egress matrix cell flows are not supported for multiple matrixes in Cisco ISE. The following External RESTful Services (ERS) requests are also not supported in the Multiple Matrix mode:

/config/egressmatrixcell/*

/config/sgt/*

/config/sgacl/*

You should, therefore, uncheck the Allow Multiple SGACL check box in the TrustSec Matrix Settings (Work > TrustSec > Settings > TrustSec Matrix Settings) window. This enables you to create an SGACL, and no error message is displayed.

Upgrade Information


Note

If you have installed a hot patch, roll back the hot patch before applying an upgrade patch.


Upgrading to Release 2.7

You can directly upgrade to Release 2.7 from the following Cisco ISE releases:

  • 2.2

  • 2.3

  • 2.4

  • 2.6

If you are on a version earlier than Cisco ISE, Release 2.2, you must first upgrade to one of the releases listed above and then upgrade to Release 2.7.


Note

We recommend that you upgrade to the latest patch in the existing version before starting the upgrade.


License Changes

Device Administration Licenses

There are two types of device administration licenses: cluster and node. A cluster license allows you to use device administration on all policy service nodes in a Cisco ISE cluster. A node license allows you to use device administration on a single policy service node. In a high-availability standalone deployment, a node license permits you to use device administration on a single node in the high availability pair.

The device administration license key is registered against the primary and secondary policy administration nodes. All policy service nodes in the cluster consume device administration licenses, as required, until the license count is reached.

Cluster licenses were introduced with the release of device administration in Cisco ISE 2.0, and is enforced in Cisco ISE 2.0 and later releases. Node licenses were released later, and are only partially enforced in releases 2.0 to 2.3. Starting with Cisco ISE 2.4, node licenses are completely enforced on a per-node basis.

Cluster licenses have been discontinued, and now only node Licenses are available for sale.

However, if you are upgrading to this release with a valid cluster license, you can continue to use your existing license upon upgrade.

The evaluation license allows device administration on one policy service node.

Licenses for Virtual Machine nodes

Cisco ISE is also sold as a virtual machine (VM). For this Release, we recommend that you install appropriate VM licenses for the VM nodes in your deployment. Install the VM licenses based on the number of VM nodes and each VM node's resources, such as CPU and memory. Otherwise, you will receive warnings and notifications to procure and install the VM license keys. However, the installation process will not be interrupted. From Cisco ISE, Release 2.4, you can manage your VM licenses from the GUI.

VM licenses are offered under three categories—Small, Medium, and Large. For instance, if you are using a 3595-equivalent VM node with eight cores and 64-GB RAM, you might need a Medium category VM license if you want to replicate the same capabilities on the VM. You can install multiple VM licenses based on the number of VMs and their resources as per your deployment requirements.

VM licenses are infrastructure licenses. Therefore, you can install VM licenses irrespective of the endpoint licenses available in your deployment. You can install a VM license even if you have not installed any Evaluation, Base, Plus, or Apex license in your deployment. However, in order to use the features that are enabled by the Base, Plus, or Apex licenses, you must install the appropriate licenses.

VM licenses are perpetual licenses. VM licensing changes are displayed every time you log in to the Cisco ISE GUI, until you check the Do not show this message again check box in the notification pop-up window.

If you have not purchased an ISE VM license earlier, see the Cisco Identity Services Engine Ordering Guide to choose the appropriate VM license to be purchased.


Note

If you have purchased ISE VM licenses without a PAK, you can request VM PAKs by emailing licensing@cisco.com. Include the Sales Order numbers that reflect the ISE VM purchase, and your Cisco ID in your email. You will be provided a medium VM license key for each ISE VM purchase you have made.

For details about VM compatibility with your Cisco ISE version, see "Hardware and Virtual Appliance Requirements" chapter in the Cisco Identity Services Engine Installation Guide for the applicable release.

For more information about the licenses, see the "Cisco ISE Licenses" chapter in the Cisco Identity Services Engine Administrator Guide.

Upgrade Procedure Prerequisites

  • Run the Upgrade Readiness Tool (URT) before an ISE software upgrade in order to check if the configured data can be upgraded to the required ISE version. Most upgrade failures occur because of data upgrade issues; the URT is designed to validate the data before the actual upgrade and reports and tries to fix the issues, wherever possible. The URT can be downloaded from the Cisco ISE Download Software Center.

  • We recommend that you install all the relevant patches before beginning the upgrade.

For more information, see the Cisco Identity Services Engine Upgrade Guide.

Telemetry

After installation, when you log in to the Admin portal for the first time, the Cisco ISE Telemetry banner displays. Using this feature, Cisco ISE securely collects nonsensitive information about your deployment, network access devices, profiler, and other services that you are using. We use the collected data to provide better services and more features in forthcoming releases. By default, telemetry is enabled. To disable or modify the account information, choose Administration > Settings > Network Success Diagnostics > Smart Call Home. The account is unique to each deployment. Each admin user need not provide it separately.

If the Smart Call Home option was enabled before upgrade, Telemetry is enabled when you upgrade to Cisco ISE 2.7.

Cisco ISE Live Update Portals

Cisco ISE Live Update portals help you to automatically download the Supplicant Provisioning wizard, AV/AS support (Compliance Module), and agent installer packages that support client provisioning and posture policy services. These live update portals are configured in Cisco ISE during the initial deployment to retrieve the latest client provisioning and posture software directly from Cisco.com to the corresponding device using Cisco ISE.

If the default Update portal URL is not reachable and your network requires a proxy server, configure the proxy settings by choosing Administration > System > Settings > Proxy before you access the Live Update portals. If proxy settings allow access to the profiler, posture, and client-provisioning feeds, access to a Mobile Device Management (MDM) server is blocked because Cisco ISE cannot bypass the proxy services for MDM communication. To resolve this, you can configure the proxy services to allow communication to the MDM servers. For more information on proxy settings, see the "Specify Proxy Settings in Cisco ISE" section in the Cisco Identity Services Engine Administrator Guide.

Client Provisioning and Posture Live Update Portals

You can download Client Provisioning resources from:

Work Centers > Posture > Settings > Software Updates > Client Provisioning.

The following software elements are available at this URL:

  • Supplicant Provisioning wizards for Windows and Mac OS X native supplicants

  • Windows versions of the latest Cisco ISE persistent and temporal agents

  • Mac OS X versions of the latest Cisco ISE persistent agents

  • ActiveX and Java Applet installer helpers

  • AV/AS compliance module files

For more information on automatically downloading the software packages that are available at the Client Provisioning Update portal to Cisco ISE, see the "Download Client Provisioning Resources Automatically" section in the "Configure Client Provisioning" chapter in the Cisco Identity Services Engine Administrator Guide.

You can download Posture updates from:

Work Centers > Posture > Settings > Software Updates > Posture Updates

The following software elements are available at this URL:

  • Cisco-predefined checks and rules

  • Windows and Mac OS X AV/AS support charts

  • Cisco ISE operating system support

For more information on automatically downloading the software packages that become available at this portal to Cisco ISE, see the "Download Posture Updates Automatically" section in the Cisco Identity Services Engine Administrator Guide.

If you do not want to enable the automatic download capabilities, you can choose to download updates offline.

Cisco ISE Offline Updates

This offline update option allows you to download client provisioning and posture updates, when direct internet access to Cisco.com from a device using Cisco ISE is not available or is not permitted by a security policy.

Offline updates are also available for Profiler Feed Service. For more information, see the Configure Profiler Feed Services Offline.

To download offline client provisioning resources:

Procedure


Step 1
Step 2

Provide your login credentials.

Step 3

Navigate to the Cisco Identity Services Engine download window, and select the release.

The following Offline Installation Packages are available for download:

  • win_spw-<version>-isebundle.zip—Offline SPW Installation Package for Windows

  • mac-spw-<version>.zip—Offline SPW Installation Package for Mac OS X

  • compliancemodule-<version>-isebundle.zip—Offline Compliance Module Installation Package

  • macagent-<version>-isebundle.zip—Offline Mac Agent Installation Package

  • webagent-<version>-isebundle.zip—Offline Web Agent Installation Package

Step 4

Click either Download or Add to Cart.


For more information on adding the downloaded installation packages to Cisco ISE, see the "Add Client Provisioning Resources from a Local Machine" section in the Cisco Identity Services Engine Administrator Guide.

You can update the checks, operating system information, and antivirus and antispyware support charts for Windows and Mac operating systems offline from an archive in your local system, using posture updates.

For offline updates, ensure that the versions of the archive files match the versions in the configuration file. Use offline posture updates after you configure Cisco ISE and want to enable dynamic updates for the posture policy service.

To download offline posture updates:

Procedure


Step 1

Go to https://s3.amazonaws.com/ise-public/posture-offline.zip.

Step 2

Save the posture-offline.zip file to your local system. This file is used to update the operating system information, checks, rules, and antivirus and antispyware support charts for Windows and Mac operating systems.

Step 3

Launch the Cisco ISE administrator user interface and choose Administration > System > Settings > Posture.

Step 4

Click the arrow to view the settings for posture.

Step 5

Click Updates.

The Posture Updates window is displayed.
Step 6

Click the Offline option.

Step 7

Click Browse to locate the archive file (posture-offline.zip) from the local folder in your system.

Note 
The File to Update field is a mandatory field. You can select only one archive file (.zip) containing the appropriate files. Archive files other than .zip, such as .tar, and .gz are not supported.
Step 8

Click Update Now.


Configuration Prerequisites

  • The relevant Cisco ISE license fees should be provided.

  • The latest patches should be installed.

  • Cisco ISE software capabilities should be active.

  • Read the Release Notes document for the corresponding release of Cisco Identity Services Engine.

Download and Install a New Patch

To obtain the patch file that is necessary to apply a patch to Cisco ISE, log in to the Cisco Download Software site at http://www.cisco.com/cisco/software/navigator.html?a=a&i=rpm (you might be required to provide your Cisco.com login credentials), navigate to Security > Access Control and Policy > Cisco Identity Services Engine > Cisco Identity Services Engine Software, and save a copy of the patch file to your local machine.

For instructions on how to apply the patch to your system, see the "Install a Software Patch" section in the Cisco Identity Services Engine Administrator Guide.

For instructions on how to install a patch using CLI, see the "Patch Install" section in the Cisco Identity Services Engine CLI Reference Guide.


Note

When installing 2.4 Patch 4 and later, CLI services will be temporary unavailable during kernel upgrade. If the CLI is accessed during this time, the CLI displays the "Stub Library could not be opened" error message. However, after patch installation is complete, CLI services will be available again.


Caveats

The Caveats section includes the bug ID and a short description of the bug. For details on the symptoms, conditions, and workaround for a specific caveat, use the Cisco Bug Search Tool (BST).The bug IDs are sorted alphanumerically.


Note

The Open Caveats sections lists the open caveats that apply to the current release and might apply to releases earlier than Cisco ISE 2.7. A caveat that is open for an earlier release and is still unresolved applies to all future releases until it is resolved.


The BST, which is the online successor to the Bug Toolkit, is designed to improve effectiveness of network risk management and device troubleshooting. You can search for bugs based on product, release, or keyword, and aggregate key data such as bug details, product, and version. For more details on the tool, see the Help page located at http://www.cisco.com/web/applicat/cbsshelp/help.html.

Open Caveats in Cisco ISE, Release 2.7

The following table lists the open caveats in Release 2.7:

Caveat ID Number

Description

CSCvq11008

Renew ISE OCSP Responder Certificates CSR usage data not shown in Change Configuration Audit report

CSCvp54416

Device SGT troubleshooting provides wrong diagnostics

CSCvr86006

Node status is not displayed correctly in the System Summary dashlet

CSCvr91946

Issuance of Certificates fails for more than 10% of endpoints

CSCvr93902

Pop-up window that allows the admin to add comments to the approval request in the Network Device Deployment window is not properly displayed

CSCvr95284

RADIUS mappings are not published to SXP pxGrid topic

CSCvr99920

"show timezone" command doesn't show timezone on CLI

CSCvs02589

NET::ERR_CERT_REVOKED error seen in Chrome on macOS 10.15 when the validity of self-signed server certificate is set to 5 years

CSCvs03195

Max Session Counter time limit option is not working

CSCvs10238

While importing policy from CSV file, if there is policy download, partial updates observed

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