
Appgate SDP is the industry's most comprehensive universal ZTNA solution, built on a direct-routed architecture that avoids the limitations of cloud-routed proxy alternatives. Cloaked infrastructure, identity-centric access, patented microsegmentation — for every user, device, and workload across cloud, on-premises, and hybrid environments.
Appgate SDP was built from first principles on Zero Trust — not adapted from a legacy VPN architecture. Every capability is an expression of these six design tenets.
Most ZTNA solutions route all traffic through the vendor's cloud — adding latency, limiting protocol support, and restricting legacy and IoT/OT use cases. Appgate SDP's direct-routed architecture connects users to resources without a vendor cloud intermediary, giving organizations full control, all-protocol support, and consistent low-latency performance.
| Dimension | Direct-Routed (Appgate) | Cloud-Routed ZTNA |
|---|---|---|
| Traffic routing | Direct to resource — no hairpinning | All traffic via vendor cloud proxy |
| Latency | Low — no detour through vendor cloud | Added latency from proxy hop |
| Protocol support | All protocols — not limited to HTTPS | Web apps only (HTTPS) in most cases |
| Legacy apps | Full support — pass-through layer | Often limited or unavailable |
| IoT / OT | Supported with M2M connections | Rarely supported |
| Air-gapped deploy | Isolated deployment model available | Not possible — requires cloud connectivity |
| Traffic control | Organization owns the path | Vendor controls routing |
| CSA alignment | SDP Reference Architecture compliant | Partial alignment |
VPN concentrators are publicly visible — scanners and attackers can probe them, enumerate versions, and target known vulnerabilities before a user ever authenticates. Appgate SDP's Single Packet Authorization makes this structurally impossible: all infrastructure sends no response to unauthorized connection attempts. There is nothing to scan, nothing to probe, and nothing to attack.
Where most ZTNA solutions cover one scenario, Appgate SDP secures every connection type across the enterprise with a unified policy model.
| Dimension | Legacy VPN | Appgate SDP |
|---|---|---|
| Open ports | Publicly visible, scannable, attackable | SPA cloaking — invisible to unauthorized users |
| Authentication model | IP-based — wide network trust after login | Identity-centric — attribute-based per-resource |
| Lateral movement | Unrestricted once inside the perimeter | Patented multi-tunneling microsegmentation |
| Access scope | Overprivileged — entire network segments | Least privilege — specific resource, specific context |
| Policy management | Static rules — manual updates required | Live Entitlements — dynamic, automatic adjustment |
| Protocol support | All (but with risk) | All — not limited to HTTPS like cloud-routed ZTNA |
| Deployment complexity | Concentrators, NAC, firewall rules, ACLs | Software-defined — retire legacy hardware |
A proven phased framework — start with high-risk use cases, scale to full enterprise ZTNA without business disruption.
Every business is unique — let our advisors analyze your needs and negotiate the best pricing with our 300+ carrier partnerships.
Get a Custom QuoteFibi evaluates Appgate alongside other ZTNA and secure access providers to match you with the right architecture for your environment. Our advisory is funded by the provider — no cost to you.