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01 Information Security Fundamentals 6 lessons planned
01M1 · Lab 1: Build the Core Lab — Workstations, AD & the AttackerPlanned02Security Fundamentals: Threat, Vulnerability, Risk & the CVE/CVSS EnginePlanned03Vulnerability Prioritization: KEV, EPSS, SSVC & BOD 26-04Planned04Zero Trust Architecture & Defense in Depth (Cisco SAFE)Planned05Security Intelligence: Authoring, Sharing & ConsumptionPlanned06Phishing & Social Engineering: Controls That Protect HumansPlanned
02 Common Threats 5 lessons planned
01Common Threats: On-Premises, Hybrid & Cloud — Malware, DoS/DDoS, Breaches & Credential CompromisePlanned02OWASP Top Ten in Practice: SQL Injection & XSS, Live from ATK-KALI-01Planned03Vulnerability Classes Beyond the Web: Weak/Hardcoded Passwords, Missing Ciphers, Buffer Overflow, Path Traversal & CSRFPlanned04AI/LLM Security: Prompt Injection, System Prompt Leakage, Embedding Weaknesses & AI Supply ChainPlanned05Man-in-the-Middle: ARP Spoofing Packet WalkPlanned
03 Cryptography & PKI 6 lessons planned
01Cryptography Foundations: Hashing, Encryption & PKIPlanned02Stand Up the Enterprise CA on AD-01 & Issue CertificatesPlanned03The SSL/TLS Handshake: Packet WalkPlanned04Post-Quantum Cryptography: NIST Algorithms, Hybrid Key Exchange & MigrationPlanned05QUIC & MASQUE: Where TLS Is GoingPlanned06IPsec: AH, ESP, IKE, PSK vs Certificates & NAT TraversalPlanned
04 ASA Stateful Firewall 16 lessons planned
01M4 · Lab 1: Power On the ASA PerimeterPlanned02Stateful FirewallsPlanned03ASA: Deployment TypesPlanned04ASA: Security ContextsPlanned05ASA: Security Levels⚑Planned06ASA: DMZ Interface & Verification⚑Planned07ASA: Objects & Object Groups⚑Planned08ASA: Service Groups & Access Rules⚑Planned09ASA: NAT Concepts and Rule Evaluation⚑Planned10ASA: NAT — Static NAT and Dynamic PAT⚑Planned11ASA: NAT — Identity Rules, Verification and Troubleshooting⚑Planned12ASA: Interface ACLs⚑Planned13ASA: Global ACLs⚑Planned14ASA: Advanced Access Policies — Modular Policy Framework (MPF)⚑Planned15ASA: High Availability (HA)Planned16M4 · Lab 5: ASA Perimeter Policy⚑Planned
05 Firepower NGFW 16 lessons planned
01M5 · Lab 1: Power On FTD & FMCPlanned02Firepower: DeploymentsPlanned03Management Models: Single vs Multidevice, In-Band vs Out-of-Band, On-Premises vs Cloud (Cisco Security Cloud Control)Planned04Firepower: Packet Processing & PoliciesPlanned05Firepower: ObjectsPlanned06Firepower: Policies — Access Control (ACP)Planned07Firepower: Policies — AVC & Application ControlPlanned08Firepower: Policies — URL FilteringPlanned09FTD: NAT Concepts and Rule EvaluationPlanned10FTD: NAT — Dynamic PAT and Static PublicationPlanned11FTD: NAT — Identity Rules, Verification and TroubleshootingPlanned12Firepower: Policies — PrefilterPlanned13Firepower: Security Intelligence (SI)Planned14Firepower: Policies — Network DiscoveryPlanned15Firepower: Policies — IPSPlanned16Firepower: Policies — Malware & FilePlanned
06 Endpoint Security 7 lessons planned
01M6 · Lab 1: Power On the Secure Endpoint Console & WorkstationsPlanned02EPP vs EDR — and Why Endpoint Security at AllPlanned03Endpoint Protection & Detection: Secure Endpoint, Secure Client & Malware AnalyticsPlanned04Configure Antimalware Protection: Policies, Outbreak Control & QuarantinesPlanned05Triage Secure Endpoint: Interpreting Malware Detection EventsPlanned06Endpoint Hygiene: MDM, Asset Inventory & Posture AssessmentPlanned07Configure Email Security with Cisco Secure Email Threat DefensePlanned
07 Secure Network Access (ISE) 1 live · 12 planned
01M7 · Lab 1: Power On ISE, the Access Layer & WirelessPlanned02Identity Management: Guest, Profiling, Posture & BYODPlanned03Configure & Troubleshoot TACACS+ Device AdministrationPlanned04Configure & Troubleshoot RADIUS Network AccessPlanned05802.1X, EAP & RADIUS Flows: Packet WalkPlanned06Configure 802.1X, MAB & WebAuth with ISEPlanned07Authorization: dACLs & Dynamic VLAN AssignmentPlanned08Change of Authorization (CoA): Triggers, Packet Flow & VerificationPlanned09Configure Profiling, Guest Services & BYODPlanned10Configure Posture Assessment & Device CompliancePlanned11Cisco Duo in Zero Trust: MFA, Device Trust & Adaptive Access PoliciesPlanned 12Cisco Duo SSO, the Authentication Proxy & Cisco Identity Intelligence 20m
08 Infrastructure Security 6 lessons planned
01Layer 2 Attacks & Defenses: Port Security, DHCP Snooping, DAI & Storm ControlPlanned02Configure Segmentation: VLANs, SGTs & Private VLANsPlanned03Device Hardening with CIS Benchmarks: Cisco Secure Firewall (FTD) & IOS XEPlanned04Secure Management Access: SNMPv3, NetConf, RestConf & APIsPlanned05Secure Log Transport: Syslog HardeningPlanned06Trusted Time: Authenticated NTPPlanned
09 Telemetry & Visibility 6 lessons planned
01M9 · Lab 1: Power On the Telemetry StackPlanned02Security Monitoring & Telemetry Technologies: NetFlow, Logs & BeyondPlanned03Configure Flexible NetFlow Export: Telemetry Hands-OnPlanned04Network Visibility & Enforcement: Telemetry, AI/ML Analytics & Cisco XDRPlanned05Splunk for Security Operations: SIEM, SOAR, Orchestration & AutomationPlanned06Exfiltration & Its Detection: DNS Tunneling, HTTPS, Email, FTP/SSH/SCP/SFTP, ICMP, Messenger/IRC, NTP & Cloud StoragePlanned
10 VPNs: Site-to-Site 6 lessons planned
01M10 · Lab 1: Power On the Branch SitePlanned02Site-to-Site VPN Options & Design: sVTI, IPsec, DMVPN, FlexVPN & GETVPNPlanned03IKEv2 Tunnel Establishment: Packet WalkPlanned04Configure IOS Site-to-Site IPsec with sVTIPlanned05Configure Site-to-Site VPN: FTD to Branch RouterPlanned06Troubleshoot VPN Tunnel Establishment on FTD: Debugs That MatterPlanned
11 VPNs: Remote Access 3 lessons planned
01Remote Access VPN & Cisco Secure Client ArchitecturePlanned02Configure Remote Access VPN: FTD & Cisco Secure ClientPlanned03Verify & Troubleshoot RA VPN: TLS/DTLS Session Establishment & DebugsPlanned
12 Secure Service Edge (Cisco Secure Access) 7 lessons planned
01M12 · Lab 1: Secure Access Tenant & Branch Component AvailabilityPlanned02SSE & SASE: From Umbrella to Cisco Secure AccessPlanned03Configure Secure Internet Access: DNS Forwarding, Branch Egress, Web Policies, Destination Lists & ReportingPlanned04Configure Secure Private Access: ZTNA to Internal AppsPlanned05Configure DLP & AI Guardrails for Secure Internet AccessPlanned06Interpret Secure Access Investigate: Scores & IndicatorsPlanned07SDN & SD-WAN: Architecture, North- & South-Bound APIs, Securing the Overlay⚑Planned
13 Cloud Security 7 lessons planned
01M13 · Lab 1: Power On the Cloud Services SimulatorPlanned02Cloud Shared Responsibility ModelsPlanned03Cloud Service & Deployment Models: NIST 800-145, Cloud Types & CASB SelectionPlanned04Selecting Cloud Security Capabilities: Deployment Models, Frameworks & Policy ManagementPlanned05Application & Workload Security: eBPF-Based ProtectionPlanned06Cloud Network, Application & Data Security: Multicloud Defense & Secure WorkloadPlanned07Configure Splunk to Ingest Cloud Logging & Monitoring DataPlanned
14 DevSecOps & Security Programmability 3 lessons planned
01DevSecOps: CI/CD, Containers, IaC Security & Secure Software DevelopmentPlanned02Secure a CI/CD Pipeline: Container & IaC Scanning Hands-OnPlanned03Interpret Python Scripts Against Cisco Security Appliance APIsPlanned
SCOR-350-701  ›  Secure Network Access (ISE)  ›  Cisco Duo SSO, the Authentication Proxy & Cisco Identity Intelligence

Concept Lesson · Secure Network Access (ISE)

Cisco Duo SSO, the Authentication Proxy & Cisco Identity Intelligence

SCOR 6.7 Describe Cisco Duo in a zero-trust security architecture (Trust Monitor, MFA, Device Trust, health checks, Adaptive Access policies, SSO, and CII)
Exam Objective — SCOR v2.0, objective 6.7

(also SCAZT objective 2.1)

Objective 6.7 names seven parts of Duo in a zero-trust architecture. The previous lesson covered the decision itself: MFA, Device Trust, health checks and Adaptive Access policies. This one covers the other three: SSO, Trust Monitor and CII. Walking out of it, you can:

  • Tell the two roads into Duo apart, Duo SSO and the Authentication Proxy, and say which checks each one can run
  • Explain why Duo SSO with Active Directory depends on the Authentication Proxy, and what that means when the proxy is down
  • Read AMR values in a Duo SSO assertion, and say what they can’t prove
  • Say what happened to Trust Monitor, and what Cisco Identity Intelligence does differently
Licensing

Duo SSO is in Duo Essentials and up, Cisco Identity Intelligence in Duo Advantage and Premier, and the Duo Network Gateway in Premier. Duo Free has none of them. The Authentication Proxy is software you install; what it can do depends on the account’s edition. The device checks in the opening example are edition-dependent too; the previous lesson has the table.


Overview

Picture one user with two logins, both behind Duo and assigned the same Duo policy requirements. In the morning they open the expense app in a browser. In the afternoon they connect to the VPN. The policy requires Duo Desktop and a firewall check. The first login gets that check. The second never does, and no setting in the policy changes that.

The reason is the road each login takes to reach Duo. Cisco Duo in Zero Trust: MFA, Device Trust & Adaptive Access Policies built the access decision. This lesson follows it out to the applications, which is where SSO fits, and then looks at who watches the results over time, which is where Trust Monitor used to sit and Cisco Identity Intelligence (CII) now does.


This is where the rest of the lesson picks up

Every hands-on lesson is planned with a lab

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📚 Official Documentation — every source behind this page · verified 27 Sept 2026
01Duo Single Sign-On
Revision Last updated July 29th, 2026 · accessed 27 Sept 2026
02Duo Authentication Proxy — Reference
Revision Last updated October 9th, 2026 · accessed 11 Oct 2026
03Duo Administration — Policy & Control
Revision Last updated September 17th, 2026 · accessed 27 Sept 2026
04RFC 8176 — Authentication Method Reference Values
Revision June 2017 · accessed 27 Sept 2026
05IANA — Authentication Method Reference Values registry
Revision Last Updated 2024-10-04 · accessed 27 Sept 2026
06Duo Trust Monitor
Revision Last updated August 20th, 2026 · accessed 27 Sept 2026
07Duo Identity Security with Cisco Identity Intelligence
Revision Last updated August 31st, 2026 · accessed 27 Sept 2026
08Cisco Identity Intelligence Knowledge Base — User Trust Level
Revision Current as published · accessed 27 Sept 2026
09Cisco Duo — Compare Duo editions and pricing
Revision Current as published · accessed 27 Sept 2026