For trust, Certificate based architecture must be developed between Controller and its participant. For best practice, use Same CA to issue pxGrid certificate for each of the participant. With ISE 2. Beginning from ISE 2. Follow below steps to see weather each node has pxGrid certificate is signed by same CA or Not. It may be required to enable two pxGrid controller function per ISE cube to provide redundancy. Once pxGrid services will up and running, PAN and MnT will automatically register and publish their topics in to the grid.
By Default, only ISE nodes are registered, and other registration requires approval or if you configure auto-generation. With the Native tagging access layer switch apply SGT to layer 2 frame that is sent across upstream switch. When migrating existing unidirectional connections to bidirectional connections, ensure that the global hold times are compatible and the bindings learnt in both directions are within the supported scale limits. Also, ensure that the global or default hold-time values on speaker and listener are compatible, since you cannot configure hold-time values for these connections on a per-connection basis.
This enables you to enforce the Cisco TrustSec policy on the traffic flowing through data center hosts. For example, the IPv4 subnet Host addresses Network and broadcast addresses Use the cts sxp mapping network-map global configuration command to limit the number of subnet binding expansions exported to an SXPv1 peer.
Subnet bindings are static, which means that active hosts are not learned. Additionally, you can use the cts sxp allow default-route-sgt command to enable the transport of SGT bindings through the default route, that is, unknown IP address 0. The Layer 2 L2 control plane protocols are responsible for creating and maintaining operational states between devices connected through the Cisco TrustSec-enabled links.
The L2 peers on the ingress interfaces process the SGT packets. However, some peers cannot process the SGT-tagged control packets tagged due to limitations. Cisco Nexus line card modules perform the following action after receiving null SGT and L2 packet from the Supervisor module:.
In this case, you can prevent the Cisco Nexus M series modules from tagging null SGT by using the no propagate-sgt l2-control command. Use the no propagate-sgt l2-control command to exempt the SGT tagging of the L2 control plane protocols for an interface. By default, the SGT tagging is not exempted for the L2 control plane protocols. For example, if the Cisco M3 series module has to interoperate with the Cisco F3 series module by using the Cisco TrustSec enabled link, then enable the no propagate-sgt l2-control command for the M3 series module.
This ensures that the control packets are accepted by the Cisco F3 series module. You can also enable or disable the SGT tagging of the L2 control plane protocols under a port profile or a port channel. You can also enable or disable SGT tagging of the L2 control packets under a port profile and a port channel. After authentication ends, the supplicant and AT obtain the security policy from the authentication server.
The supplicant and AT enforce the policy against each other. Both the supplicant and AT provide the peer device ID that each receives after authentication. The authentication server returns the following policy attributes:. The Cisco TrustSec environment data is a collection of information or policies that assists a device to function as a Cisco TrustSec node.
The device acquires the environment data from the authentication server when the device first joins a Cisco TrustSec network cloud, although you might also manually configure some of the data on a device.
For example, you must configure the seed Cisco TrustSec device with the authentication server information, which can later be augmented by the server list that the device acquires from the authentication server. Otherwise, the following false syslog error is generated:. The device must refresh the Cisco TrustSec environment data before it expires. The device can also cache the data and reuse it after a reboot if the data has not expired.
The supplicant device may not have IP connectivity with the authentication server. No warning will be generated for inconsistent configuration and no compatibility checks will be enforced. The vPC peer-link should be configured in trusted mode with SGT propagation enabled using the propagate-sgt and policy static sgt commands in the Cisco TrustSec manual configuration mode after the cts manual command is executed.
If Cisco TrustSec is enabled on fabricpath ports, the propagate-sgt and policy static sgt commands must be enabled on the ports. The current priority enforcement order, from lowest 1 to highest 7 , is as follows:.
This is applicable only to vPC peer devices. Learned on interface—Bindings of authenticated hosts, which are learned through EPM and device tracking. You must enable the Although none of the Cisco TrustSec has the following guidelines and limitations:. Traffic generated from any supervisor is tagged with device-SGT provided that a non-zero value is configured or downloaded and SGT propagation is enabled on the egress interface.
Cisco TrustSec stops tagging traffic when Netflow is configured on the same interface which is used for tagging. Do not configure Netflow on the same interface if the matrix does not specify that the Netflow is supported with SGT. The workaround for this issue is to remove Netflow from the interface which is used for tagging and use a different interface to send the Netflow with no relation to the Cisco TrustSec. These requirements help to ensure the right service, quality, or characteristics are ordered from the SP.
There must be end-to-end link event notification—if the edge device or any intermediate device loses a link then there must be notifications sent so that the user is aware of the link failure as the service will be interrupted.
SXP cannot use the management mgmt 0 interface. You cannot enable Cisco TrustSec on interfaces in half-duplex mode. You cannot configure both Cisco TrustSec and However, you must enable the Currently this number is not maintained and cannot be displayed.
The Cisco TrustSec configuration commands are not available. The no cts dev-id pswd dev-pswd command is currently not supported in NX-OS software. When the cts dev-id pass command is configured, the command configuration can be replaced using the same command, but it cannot be deleted.
Such configuration changes that occur on a Cisco TrustSec port should be flapped. However, this could cause possible traffic disruptions. In such circumstances, to avoid the display of CRC errors and traffic disruptions, perform the following steps:. Change the port mode to FabricPath mode. The subnet-to-SGT bindings are not expanded by default. To enable expansion, the cts sxp mapping network-map command must be set to a non-zero value. For example, consider the hosts SGT 20 is selected for the host Similarly, if VLAN is designated to the subnet To enable the monitoring mode, enable the cts role-based detailed-logging command.
You can enable or disable logging at the ACE level, as being done currently. The monitor mode counter statistics and logging output might not match because the logging output count is rate limited, while counter statistics are directly obtained from the hardware.
When you disable the monitor mode feature, the switch reverts to the default behavior. Therefore, we recommend that you enable log option only for troubleshooting or validation purposes. However, hardware programming is based on the priority and monitor mode property. SGACLs are monitored when you enable monitor mode globally and set monitor all. However, port-channel member ports cannot be configured for this feature. When an L3 interface is converted to an L2 interface, the IP configuration is erased.
Due to this reprogramming, the previously known statistics are deleted for a RBACL and they are not displayed in the show cts role-based counters command output. The following guidelines and limitations are applicable to SGT tagging exemption for L2 protocols feature:. You can exempt SGT tagging only on the following control packets by using the no propagate-sgt l2-control command:. IEEE Standard This ensures that the control packets are accepted by the Cisco F3 Series module.
This table provides information about the support for port interoperability for the Cisco TrustSec-enabled links between the Cisco Nexus modules:. This table lists the default settings for Cisco TrustSec parameters.
You must enable both the You cannot disable the Optional show cts. Displays the Cisco TrustSec configuration. Optional show feature. Displays the enabled status for features.
Optional copy running-config startup-config. Copies the running configuration to the startup configuration. Cisco TrustSec uses the password in the credentials for device authentication. See the documentation at:. Configures a unique device ID and password. The name argument has a maximum length of 32 characters and is case sensitive. To remove the configuration of device ID and the password, use the no form of the command.
Optional show cts environment. Displays the Cisco TrustSec environment data. Perform this task to configure native VLAN tagging globally. Use exclude control keyword to tag data packets only. Use fabricpath keyword to tag control and data packets on fabricpath ports. Specifies the interface that you want to add to a channel group, and enters the interface configuration mode. If you use the management VRF instance, no further configuration is necessary for the nonseed devices in the network cloud.
The hostname argument is alphanumeric, case sensitive, and has a maximum of characters. The key argument is alphanumeric, case sensitive, and has a maximum length of 63 characters.
The 0 option indicates that the key is in clear text. The 7 option indicates that the key is encrypted. The default is clear text. Optional show radius-server. Optional show radius-server groups [ group-name ]. Optional show aaa authentication.
Optional show aaa authorization. Optional show cts pacs. Optional show radius-server groups aaa-private-sg. This section provides information about the configuration tasks for Cisco TrustSec authentication, authorization, and data path security. Enable the Cisco TrustSec feature. Enable Cisco TrustSec authentication.
You must enable Cisco TrustSec authentication on the interfaces. By default, the data path replay protection feature is enabled and the SA protocol operating mode is GCM-encrypt.
For the Cisco TrustSec authentication configuration to take effect, you must enable and disable the interface, which disrupts traffic on the interface.
Enabling Specifies a single port or a range of ports and enters interface configuration mode. Enables Optional no replay-protection.
Disables replay protection. The default is enabled. Configures the SAP operation mode on the interface. Other Cisco TrustSec configurations, such as MACSec configuration, which would not result in incompatibility, are allowed on port-channel member interfaces.
Using the channel-group command:. Addition of new members is accepted, if the configuration on the port-channel and that on all members are compatible; if not, the addition is rejected. If Cisco TrustSec is not configured on the port-channel and the Cisco TrustSec configuration on the members being added is compatible, the addition is accepted and the port-channel inherits the compatibility parameters from the member interfaces. Using the channel-group force command:. If the interfaces being added are capable of supporting the port-channel configuration, they inherit the compatibility parameters from the port-channel and the addition is accepted.
However, if some interfaces being added are not capable of supporting the port-channel configuration, the addition is rejected.
When the channel group or channel-group force command is issued, if there is any incompatibility in the Cisco TrustSec configuration, an error message is displayed to the user pointing to the incompatible configuration. The show run and show start command displays the Cisco TrustSec configuration on port-channel interfaces as well along with that on physical ethernet interfaces. The show cts role-based sgt-map command displays the port-sgt learnt mappings that was learnt on the port-channel interface, if applicable.
When In-Service Software Upgrades ISSU is performed from a lower version that does not support this feature, as soon as the ISSU is completed, all port-channels inherit the compatibility parameters from their first configured member interface.
A warning level syslog is generated for port-channels on which the configuration incompatibility is detected. To display Cisco TrustSec configuration information, use one of the following commands:. Displays the Cisco TrustSec capability of all interfaces or a specific Ethernet interface.
Displays the peer-policy data that is downloaded and stored as part of the Cisco TrustSec authorization for all interfaces or a specific Ethernet interface. Displays Cisco TrustSec environmental data. Displays the Cisco TrustSec information in the running configuration.
This section provides configuration examples for Cisco TrustSec. The following example shows how to enable Cisco TrustSec:. The following example shows how to enable Cisco TrustSec authentication with a clear text password on an interface:.
The following example shows how to configure Cisco TrustSec authentication in manual mode static policy on an interface:. The following example shows how to configure Cisco TrustSec authentication in manual mode dynamic policy on an interface:. The following example shows how to specify that the configured PMK be displayed in AES-encrypted format in the running configuration:. Problem : Cisco TrustSec commands fail with the following error message:.
In this setup, when you configure the IP-SGT mappings beyond the scale limit of a module, responses can be slower than usual.
This slow response eventually leads to a configuration command failure, if the configured IP-SGT mappings exceed the module response rate.
Solution : To prevent the Cisco TrustSec command failure, reload the switch by performing the following task:. This table lists the release history for this feature. Added the show cts sap pmk command to display the hexadecimal value of the configured PMK. Added the show cts capability interface command to display the Cisco TrustSec capability of interfaces. Enabled the cts sgt , policy static sgt , and clear cts policy sqt commands to accept decimal values.
Added the ability to download sgname tables from ISE and to refresh the environment data manually and upon environment data timer expiry. Added the brief keyword to the show cts interface command to display a brief summary for all Cisco TrustSec-enabled interfaces.
Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. PDF - Complete Book 9. Updated: July 8, Chapter: Configuring Cisco TrustSec. Global trunk port tagging. Untagged and tagged. Global FabricPath tagging. Global FabricPath tagging for data packets. Port-level trunk port tagging. Port-level Fabricpath tagging. Port-level FabricPath tagging for data packets.
SXPv3 does not support IPv6. SXPv1 session is established. SXP session is established. SXPv3 session is established. Each Cisco TrustSec device should support some minimal default access policy in case it is not able to contact the authentication server to get an appropriate policy for the peer.
Cisco TrustSec. SXP default password. SXP reconcile period. SXP retry period. Step 1. Enters global configuration mode. Step 2. Enables the Step 3. Enables the Cisco TrustSec feature. Step 4. Exits global configuration mode. Step 5. Optional show cts Example: switch show cts. Optional Displays the Cisco TrustSec configuration. Step 6. Optional show feature Example: switch show feature. Optional Displays the enabled status for features.
Step 7. Optional copy running-config startup-config Example: switch copy running-config startup-config. Optional Copies the running configuration to the startup configuration. Optional show cts environment Example: switch show cts environment. Optional Displays the Cisco TrustSec environment data. Tags control and data packets as appropriate.
Optional show radius-server Example: switch show radius-server. Optional show radius-server groups [ group-name ] Example: switch show radius-server group rad1. Optional show aaa authentication Example: switch show aaa authentication. Optional Displays the AAA authentication configuration. Optional show aaa authorization Example: switch show aaa authorization. Optional Displays the AAA authorization configuration. Optional show cts pacs Example: switch show cts pacs.
Optional show radius-server groups aaa-private-sg Example: switch config show radius-server groups aaa-private-sg.
Optional copy running-config startup-config Example: switch config copy running-config startup-config. Enable Optional no replay-protection Example: switch config-if-cts-dot1x no replay-protection. Optional Disables replay protection. Optional Configures the SAP operation mode on the interface. Disables the interface. Optional Displays the Cisco TrustSec configuration on the interfaces. Optional Displays the Cisco TrustSec configuration on the interface.
Configures the SA protocol authentication mode on the interface. Enables the interface and SA protocol operation mode on the interface. Generates the SA protocol keys for an interface. The mode list configures the cipher mode for the data path encryption and authentication as follows: Use the gcm-encrypt keyword for GCM encryption. Optional policy dynamic identity peer-name Example: switch config-if-cts-manual policy dynamic identity MyDevice2. Optional Configures a dynamic authorization policy download.
Optional policy static sgt tag [ trusted ] Example: switch config-if-cts-manual policy static sgt 0x2. Optional Configures a static authorization policy. Optional Displays the Cisco TrustSec configuration for the interfaces.
Step Optional Displays the hexadecimal value of the configured PMK for all interfaces or a specific Ethernet interface. Optional show cts role-based enable Example: switch config show cts role-based enable. Exits VRF configuration mode. Enter global configuration mode: switch configure terminal. Enable detailed logging for the IP access list: switch config [no] logging ip access-list detailed. Optional Clear the cache every 15 seconds to limit the cache output to only recent connections: switch config logging ip access-list cache interval Exit global configuration mode: switch config exit.
Display information about the detailed logging IP access list and ACE actions: switch show logging ip access-list cache detail. Optional Display the running configuration for Cisco TrustSec: switch show run cts. Optional Display the running configuration for Cisco TrustSec: switch config show run cts. Configure the SGT for packets sent from the device: switch config cts sgt tag Note. Optional Display the Cisco TrustSec environment data information: switch show cts environment-data.
Optional Copy the running configuration to the startup configuration: switch copy running-config startup-config. Optional show cts role-based sgt-map [ summary sxp peer peer-ipv4-addr vlan vlan-id vrf vrf-name ] Example: switch config show cts role-based sgt-map. Optional show cts role-based sgt-map [ summary sxp peer peer-ipv4-addr vlan vlan-id vrf vrf-name ] Example: switch config show cts role-based sgt-map summary.
Optional Displays the SGT mappings. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the "New and Changed Information"chapter or the Feature History table in this chapter. FIPS specifies that a cryptographic module shall be a set of hardware, software, firmware, or some combination thereof that implements cryptographic functions or processes, including cryptographic algorithms and, optionally, key generation, and is contained within a defined cryptographic boundary.
FIPS specifies certain cryptographic algorithms as secure, and it identifies which algorithms should be used if a cryptographic module is to be called FIPS compliant. A cryptographic module must perform power-up self-tests and conditional self-tests to ensure that it is functioning properly. Power-up self-tests run automatically after the device powers up.
A device goes into FIPS mode only after all self-tests are successfully completed. If any self-test fails, the device logs a system message and moves into an error state. The device uses a cryptographic algorithm known-answer test KAT to test FIPS mode for each FIPS approved cryptographic function encryption, decryption, authentication, and random number generation implemented on the device. The device applies the algorithm to data for which the correct output is already known.
It then compares the calculated output to the previously generated output. If the calculated output does not equal the known answer, the KAT fails. Conditional self-tests run automatically when an applicable security function or operation is invoked.
Unlike the power-up self-tests, conditional self-tests are executed each time their associated function is accessed. A bypass test failure on CTS-enabled ports causes only those corresponding ports to be shut down. The bypass test might fail because of packet drops caused by data path congestion.
In such cases, we recommend that you try bringing up the port again. If any of these bootup tests fail, the whole system is moved to the FIPS error state.
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