Configure TrustSec NDAC seed and non-seed devices
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1 Configure TrustSec NDAC seed and non-seed devices Contents Introduction Prerequisites Components Used Network Diagram IP addresses ISE Configuration Add Network Devices 6500 (Seed) 3560X (Non-seed) TrustSec Security Groups Network Device Authorization Policy Seed Device Configuration (6500) Verification ISE Live Logs PAC provisioning TrustSec Data Download Non-Seed Device Configuration (3560X) Verification ISE Live Logs PAC provisioning Non-Seed Authentication Mutual Peer Policy Download TrustSec Data Download Interface Verification Introduction This document describes how to configure seed and non-seed devices when using trustsec with ISE (Identity Services Engine). Trustsec uses NDAC (Network Device Admission Control) to authenticate a new device before allowing it to join the trustsec domain. This prevents unauthorized devices from being able to participate in the exchange of trustsec information. Seed devices/authenitcators, in this case the 6500 switch, need to be manually configured and use RADIUS over IP to connect to ISE. Nonseed devices/supplicants, in this case the 3560X, do not have direct IP connectivity to ISE and require the seed devices to enroll, and authenticate them onto the network using 802.1X. Once the supplicant, non-seed device, is authenticated, a PAC (Protected Access Credential) will be provisioned from ISE and the server information will be downloaded. The PAC contains a shared key and encrypted token to provide secure contact to ISE in the future.
2 Prerequisites ISE authentication server Trustsec capable seed device/authenticator Trustsec capable non-seed device/supplicant Please reference the latest trustsec compatibility matrix: Components Used ISE 2.2 patch 2 WS-C6509-E [VS-SUP2T-10G] s2t54-ipservicesk9-mz.spa sy3.bin WS-C3560X-24P-S c3560e-universalk9-mz e4.bin Network Diagram DAC Topology N IP addresses ISE:
3 6509: X: ISE Configuration Add Network Devices 6500 (Seed) WorkCenters > TrustSec > Components > Network Devices > Add Device Name and IP address Radius Shared Secret Trustsec Credentials
4 3560X (Non-seed) WorkCenters > TrustSec > Components > Network Devices > Add Device Name and IP address
5 Radius Shared Secret Trustsec Credentials
6 TrustSec Security Groups WorkCenters > TrustSec > Components > Security Groups
7 Network Device Authorization Policy WorkCenters > TrustSec > TrustSec Policy > Network Device Authorization Seed Device Configuration (6500) TrustSec Credentials 6500#cts credentials id 6500 password Cisc0123 AAA configuration 6500(config)#aaa new-model 6500(config)#aaa authentication dot1x default group radius 6500(config)#aaa accounting identity default start-stop group radius 6500(config)#aaa authorization network CTSlist group radius 6500(config)#cts authorization list CTSlist Radius Server Configuration
8 6500(config)#radius server ISE 6500(config-radius-server)#address ipv auth-port 1812 acct-port (config-radius-server)#pac key Cisc0123 Recognize and use vendor-specific attributes 6500(config)#radius-server vsa send authentication Enable Change of Authorization 6500(config)#aaa server radius dynamic-author 6500(config-locsvr-da-radius)#client server-key Cisc0123 Enable 802.1X 6500(config)#dot1x system-auth-control Switchport TrustSec Configuration 6500(config)#int gi6/1 6500(config-if)#switchport mode trunk 6500(config-if)#cts dot1x 6500(config-if-cts-dot1x)#sap mode-list null 6500(config-if-cts-dot1x)#propagate sgt Verification PAC Download 6500#show cts pac AID: 6F B8D229F E2D37 PAC-Info: PAC-type = Cisco Trustsec AID: 6F B8D229F E2D37 I-ID: 6500 A-ID-Info: ISE 2.2p1 Credential Lifetime: 04:27:29 UTC Oct PAC-Opaque: B F B8D229F E2D F6BE70E2CCB6B0D25B FC81CB5D A55C100093A8059F0E1A3FAF83A2B7C B7324C0FDC4CBAE9AE4AFD19C614A7DB13C9DBD 06798A F0F91F E543ED205A9CD0F276A96C4505BF34CB75F132377FE770B77A3D822842DFE3A0 A D08DD58965B09C352E33E74DB3F6B5C7E1F6EC8C30FF215A6FEB3EA7BBC95E Refresh timer is set for 12w5d Environment Data 6500#show cts environment-data CTS Environment Data ==================== Current state = COMPLETE Last status = Successful Local Device SGT: SGT tag = 2-02:TrustSec_Devices Server List Info: Installed list: CTSServerList1-0001, 1 server(s): *Server: , port 1812, A-ID 6F B8D229F E2D37 Status = ALIVE auto-test = TRUE, keywrap-enable = FALSE, idle-time = 60 mins, deadtime = 20 secs Multicast Group SGT Table: Security Group Name Table: 0-fb:Unknown 2-fb:TrustSec_Devices 3-fb:Network_Services 4-fb:Employees 5-fb:Contractors 6-fb:Guests 7-fb:Production_Users 8-fb:Developers 9-fb:Auditors
9 10-fb:Point_of_Sale_Systems 11-fb:Production_Servers 12-fb:Development_Servers 13-fb:Test_Servers 14-fb:PCI_Servers 15-fb:BYOD 255-fb:Quarantined_Systems Environment Data Lifetime = secs Last update time = 20:28:36 UTC Thu Jul Env-data expires in 0:23:47:05 (dd:hr:mm:sec) Env-data refreshes in 0:23:47:05 (dd:hr:mm:sec) Cache data applied = NONE State Machine is running ISE Live Logs Operations > RADIUS > Live Logs PAC provisioning
10 TrustSec Data Download
11
12 Non-Seed Device Configuration (3560X) TrustSec Credentials
13 3560X#cts credentials id 3560X password Cisc0123 AAA configuration 3560X(config)#aaa new-model 3560X(config)#aaa authentication dot1x default group radius 3560X(config)#aaa authorization network default group radius 3560X(config)#aaa accounting identity default start-stop group radius Recognize and use vendor-specific attributes 3560X(config)#radius-server vsa send authentication Enable Change of Authorization 3560X(config)#aaa server radius dynamic-author 3560X(config-locsvr-da-radius)#client server-key Cisc0123 Enable 802.1X 3560X(config)#dot1x system-auth-control Switchport TrustSec Configuration 3560X(config)#int gi0/ X(config-if)#switchport trunk encapsulation dot1q 3560X(config-if)#switchport mode trunk 3560X(config-if)#cts dot1x 3560X(config-if-cts-dot1x)#sap mode-list null 3560X(config-if-cts-dot1x)#propagate sgt Verification Pac Download 3560X#show cts pac AID: 6F B8D229F E2D37 PAC-Info: PAC-type = Cisco Trustsec AID: 6F B8D229F E2D37 I-ID: 3560X A-ID-Info: ISE 2.2p1 Credential Lifetime: 05:32:57 UTC Oct PAC-Opaque: B F B8D229F E2D F9B0624C0A0C5D2AFDAAE89 C173D A55C100093A8059F0E1A3FAF83A2B7C B7324C0B224F18D8654C2DB14544B58296A0A97 C7B52EB1B7C FE16F715094AC8A766E1F6D16A2A151B70632D6EAB34C5E FADA53F5892AD4ACC3533 B5A61F89D028C076D94B52744A328C AF428162AC C6BDDB207A08F57 Refresh timer is set for 11y42w Environment Data 3560X#show cts environment-data CTS Environment Data ==================== Current state = COMPLETE Last status = Successful Local Device SGT: SGT tag = 2-02:TrustSec_Devices Server List Info: Installed list: CTSServerList1-0001, 1 server(s): *Server: , port 1812, A-ID 6F B8D229F E2D37 Status = ALIVE auto-test = TRUE, keywrap-enable = FALSE, idle-time = 60 mins, deadtime = 20 secs Multicast Group SGT Table: Security Group Name Table: 0-d1:Unknown 2-d1:TrustSec_Devices 3-d1:Network_Services 4-d1:Employees
14 5-d1:Contractors 6-d1:Guests 7-d1:Production_Users 8-d1:Developers 9-d1:Auditors 10-d1:Point_of_Sale_Systems 11-d1:Production_Servers 12-d1:Development_Servers 13-d1:Test_Servers 14-d1:PCI_Servers 15-d1:BYOD 255-d1:Quarantined_Systems Environment Data Lifetime = secs Last update time = 02:41:21 UTC Mon Jan Env-data expires in 0:23:56:36 (dd:hr:mm:sec) Env-data refreshes in 0:23:56:36 (dd:hr:mm:sec) Cache data applied = NONE State Machine is running ISE Live Logs Operations > RADIUS > Live Logs PAC provisioning
15 Non-Seed Authentication
16 Mutual Peer Policy Download
17
18 TrustSec Data Download
19
20 Interface Verification Seed (6500) 6500#show cts interface gi6/1 Global Dot1x feature is Enabled Interface GigabitEthernet6/1: CTS is enabled, mode: DOT1X IFC state: OPEN Interface Active for 00:38: Authentication Status: SUCCEEDED Peer identity: "3560X" Peer's advertised capabilities: "sap" 802.1X role: Authenticator Authorization Status: SUCCEEDED Peer SGT: 2:TrustSec_Devices
21 Peer SGT assignment: Trusted SAP Status: SUCCEEDED Dot1x Info for GigabitEthernet6/ PAE = AUTHENTICATOR Non-Seed (3560X) 3560X#show cts interface gi0/24 Global Dot1x feature is Enabled Interface GigabitEthernet0/24: CTS is enabled, mode: DOT1X IFC state: OPEN Interface Active for 00:08: Authentication Status: SUCCEEDED Peer identity: "6500" Peer's advertised capabilities: "sap" 802.1X role: Supplicant Reauth period applied to link: Not applicable to Supplicant role Authorization Status: SUCCEEDED Peer SGT: 2:TrustSec_Devices Peer SGT assignment: Trusted SAP Status: SUCCEEDED Version: 2 Dot1x Info for GigabitEthernet0/ PAE = SUPPLICANT
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