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ZTNA & SASE Strategy & Deployment: 

Transform how users access applications, moving from location-based to identity-and context-driven pathways

Why ZTNA & SASE Matter

Legacy remote access methods: VPN tunnels, hairpin routing, static firewall paths, etc. no longer scale in cloud-and hybrid-first environments. They introduce latency, brittle failure domains, and inconsistent policy enforcement. ZTNA (Zero Trust Network Access) and SASE architectures promise to re-anchor access control to identity, device posture, and policy, delivering secure, performant access anywhere.

At IVI, we help organizations select, deploy, and operate ZTNA and SASE solutions: Prisma Access, Zscaler, Cato, Cisco, or hybrid solutions, so you get consolidation, scalability, and real-world performance, not just a vendor stack.

Key Business Objectives:

  • Eliminate bottlenecks and single points of failure in remote access
  • Enforce consistent access policies across users, devices, and locations
  • Reduce complexity by consolidating VPN, firewall, and access tools
  • Improve visibility and telemetry into access behavior
  • Enable frictionless, low-latency experience for users, wherever they are

  • What IVI Delivers

    Discovery & Baseline Assessment

    We gather your current access topology, identity providers, device posture tools, traffic flows, and performance constraints. We map gaps between your desired Zero Trust state and existing architecture.

  • Platform Evaluation & Alignment

    We help you choose or combine solutions: Prisma Access, Zscaler, Cato ZTNA, Cisco Secure Access by Duo or Cisco SASE based on your specific use cases, traffic patterns, and operations. We provide side-by-side comparisons focusing on performance, policy flexibility, integration, and ROI.

  • Architecture & Design

    We design your access fabric:

    IdP integrations and device posture enforcement, policy zones and trust boundaries, gateway (or enforcement) deployment planning: cloud, edge, hybrid, path routing and traffic steering design

  • Proof of Concept / Pilot

    We deploy ZTNA or SASE in a controlled segment; e.g., specific user groups or application to validate policy, performance, fallback behavior, routing, and telemetry. We iterate designs based on real-world usage data.

  • Phased Rollout & Cutover

    Working with your teams, we deploy in waves, branch, remote workers, data center users, while monitoring and mitigating risk. We maintain rollback strategies, change controls, and performance baselines.

  • Operational Enablement & Optimization

    Beyond "go live", we embed observability dashboards, health checks, tunable alerts, and regular reviews to drive continuous improvement in policy enforcement and system performance.

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How IVI Integrates With Key Platforms

Prisma Access (Palo Alto)

Strengths: High integration with PAN firewall policy, logging, and security stack

IVI helps extend existing firewall policies into Prisma Access, manages user mapping, and validates performance SLAs.

Zscaler

Strengths: Strong global backbone, advanced threat protection, cloud-native enforcement

IVI builds routing topologies and identity posture models, optimizes traffic paths to Zscaler locs.

Cato ZTNA

Strengths: Integrated SD-WAN + ZTNA stack

IVI helps align your SD-WAN and access policies, avoiding duplicated rules and simplifying the fabric.

Cisco

Strengths: Broad portfolio (Duo, Cisco Secure Access, Cisco Umbrella, etc.)

IVI unifies your Cisco access, identity, and security portfolio under a Zero Trust plane while maintaining compatibility with other vendors

Typical Project Flow

Every phase includes rollback planning and real-user telemetry validation.

1

As-Is Infrastructure Review

2

Strategy Workshop & Platform Evaluation

3

Design & Pilot Implementation

4

Phased Deployment & Cutover

5

Validation, Tuning & Performance Reviews

6

Transition to Operations

Expected Outcomes for Your Organization

  • Access becomes identity-first and context-aware
  • Consolidated tools, fewer consoles, reduced overhead
  • Faster and more reliable application connectivity
  • Better logging, audit, and policy visibility
  • Flexibility to evolve with cloud and branch growth

Frequently Asked Questions

What's the difference between ZTNA and SASE?

ZTNA (Zero Trust Network Access) focuses on enforcing identity- and context-based access to specific applications, replacing broad network-like access like VPNs.

SASE (Secure Access Service Edge) combines ZTNA with other security functions (like SWG, CASB, and DLP) and SD-WAN into a unified, cloud-delivered service. IVI helps clients adopt both, whether independently or as part of a larger access transformation.

Do we need to rip out our VPNs to implement ZTNA?

Not right away. We typically design a coexistence model where VPN and ZTNA run in parallel during the transition. As access policies are validated and performance confirmed, we phase out VPN dependencies, with full rollback options at each stage.

Which vendors does IVI work with for ZTNA and SASE?

We have deep expertise in Prisma Access (Palo Alto Networks), Zscaler, Cato Networks, and Cisco (including Secure Access, Umbrella, and Duo). We also design hybrid architectures that combine multiple platforms when use cases demand it.

What is we already use SD-WAN? Do we still need SASE?

Yes, especially if your current SD-WAN lacks built-in security enforcement. SASE adds identity-based access control, inline threat protection, DLP, and policy enforcement, all delivered from the cloud. We ensure these layers integrate cleanly with your existing WAN strategy.

How does ZTNA improve security compared to traditional access?

ZTNA enforces access based on user identity, device posture, and application-specific policies, not IP addresses or static routes. It limits lateral movement, minimizes attack surface, and improves visibility across hybrid environments. It also supports more granular policy than VPN.

How long does a typical ZTNA or SASE project take?

It depends on environment complexity and vendor selection. A typical engagement with IVI follows a phased approach, from design through deployment, and takes 6 to 12 weeks from kickoff to production readiness. We prioritize pilot validation before global rollout.

Can we integrate ZTNA and SASE with our existing identity and access management (IAM) provider?

Yes. We build integrations with Azure, AD, Okta, Duo, Ping, and on-prem AD to ensure identity-driven access. We also integrate device posture tools and MDM platforms to support compliance checks as part of access policy enforcement.

What observability do we get post-deployment?

All IVI deployments include telemetry validation, access logging integration, and performance monitoring dashboards. We ensure your team can troubleshoot, tune policies, and observe access behavior in real time, with support for SIEM integration.