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Appendix C — Architecture Quick-Reference


Prisma Access Component Summary

Component Full Name Role Connected To
MU-SPN Mobile User — Service Processing Node Terminates GlobalProtect VPN tunnels and Explicit Proxy connections Endpoints, internet
RN-SPN Remote Network — Service Processing Node Terminates branch site IPSec tunnels Branch CPEs
SC-CAN Service Connection — Cloud Access Node Terminates data centre / HQ IPSec tunnels DC routers
Prisma Access Backbone — Internal high-speed backbone connecting all SPNs and CANs MU-SPN ↔ RN-SPN ↔ SC-CAN
Panorama — Management plane — pushes config to Prisma Access via templates and device groups All Prisma Access nodes
SCM Strata Cloud Manager SaaS-based next-gen management — alternative to Panorama All Prisma Access nodes
Strata Logging Service — Cloud log storage and analytics (formerly Cortex Data Lake) Prisma Access logging output

Overall Prisma Access Topology

graph TD
    EP["Endpoint<br/>(GlobalProtect)"]
    BR["Branch CPE<br/>(IPSec)"]
    DC["Data Centre<br/>Router (IPSec)"]
    MU["MU-SPN<br/>(Mobile Users)"]
    RN["RN-SPN<br/>(Remote Networks)"]
    SC["SC-CAN<br/>(Service Connection)"]
    BB["Prisma Access<br/>Backbone"]
    INT["Internet / SaaS"]
    PAN["Panorama / SCM<br/>(Management)"]

    EP --> MU
    BR --> RN
    DC --> SC
    MU --> BB
    RN --> BB
    SC --> BB
    BB --> INT
    BB --> SC
    PAN -.->|Config push| MU & RN & SC

Mobile User Traffic Flow (GlobalProtect)

flowchart TD
    EP["Endpoint<br/>(GP client)"]
    PORTAL["GP Portal<br/>(MU-SPN)"]
    GW["GP Gateway<br/>(MU-SPN)"]
    POLICY["NGFW Policy<br/>Inspection"]
    DEST["Internet / SaaS<br/>or DC via SC-CAN"]

    EP -->|"1. Fetch portal config<br/>(FQDN:443)"| PORTAL
    PORTAL -->|"2. Auth + gateway list"| EP
    EP -->|"3. IPSec tunnel<br/>(IKEv2)"| GW
    GW --> POLICY
    POLICY --> DEST

Key numbers: - VPN IP pool: sized by regional deployment scope, not a flat per-location figure — /23 minimum for 1–2 regions, /19 minimum for 3+ regions, /23 minimum per region if allocating separately (corrected 2026-07-10 — see ch07/ch10 for the full sizing model) - Fallback locations: Hong Kong, Netherlands Central, US Northwest — confirmed for Panorama-managed deployments only; not asserted for SCM (see ch44)


Explicit Proxy Traffic Flow

flowchart TD
    EP["Endpoint<br/>(browser + PAC)"]
    PAC["PAC File<br/>(*.gpcloudservice.com)"]
    PROXY["Explicit Proxy<br/>(MU-SPN :8080 SAML / :8081 Kerberos)"]
    IDP["SAML IdP (Azure AD / Okta)<br/>or Kerberos infrastructure"]
    DEST["Internet / SaaS"]

    EP -->|"1. Fetch PAC"| PAC
    EP -->|"2. HTTP/HTTPS<br/>via PROXY rule"| PROXY
    PROXY -->|"3. SAML redirect or<br/>Kerberos auth"| IDP
    IDP -->|"4. Auth assertion/ticket"| PROXY
    PROXY -->|"5. Inspect + forward"| DEST

Key constraints: Port 8080 (SAML) or 8081 (Kerberos) · HTTP/HTTPS only · No private apps (corrected 2026-07-10 — see ch49/ch51: Kerberos is a current, GA authentication option alongside SAML, not "SAML only")


Remote Network Traffic Flow

flowchart TD
    CPE["Branch CPE"]
    SPN["RN-SPN<br/>(IPSec Termination Node)"]
    BB["Prisma Access Backbone"]
    DC["Data Centre<br/>(via SC-CAN)"]
    INT["Internet"]

    CPE -->|"IPSec tunnel<br/>(IKEv2)"| SPN
    SPN --> BB
    BB -->|"Branch → DC"| DC
    BB -->|"Branch → Internet"| INT

Single tunnel: Static routes or BGP · ECMP: up to 4 tunnels, BGP required, Symmetric Return — QoS and static routes are not supported once ECMP is enabled, and the tenant scale limits are conditional (they apply only when a Local BGP IP Address is configured) — see ch41 for the full tiered figures and conditions, not repeated here


Service Connection Traffic Flow

flowchart TD
    MU["Mobile User<br/>(MU-SPN)"]
    RN["Branch<br/>(RN-SPN)"]
    BB["Prisma Access Backbone"]
    SC["SC-CAN"]
    DC["Data Centre / HQ<br/>(Router)"]

    MU --> BB
    RN --> BB
    BB --> SC
    SC -->|"IPSec tunnel"| DC

BGP AS: Prisma Access uses AS 65534 · Supports Hot Potato and Cold Potato routing modes


Panorama Management Object Hierarchy

graph TD
    SHARED["Shared<br/>(top-level device group)"]
    SCGD["Service_Conn_Device_Group"]
    RNGD["Remote_Network_Device_Group"]
    MUGD["Mobile_User_Device_Group"]
    EPGD["Explicit_Proxy_Device_Group"]

    SHARED --> SCGD
    SHARED --> RNGD
    SHARED --> MUGD
    SHARED --> EPGD
Device Group Service Template Stack
Service_Conn_Device_Group Service Connections Service_Conn_Template_Stack
Remote_Network_Device_Group Remote Networks Remote_Network_Template_Stack
Mobile_User_Device_Group Mobile Users (GP) Mobile_User_Template_Stack
Explicit_Proxy_Device_Group Explicit Proxy Explicit_Proxy_Template_Stack

This hierarchy is Panorama-specific. Strata Cloud Manager uses a genuinely different structure — Folders replace Device Groups and Snippets replace Templates (attachment-order precedence, not a stack) — see ch32/ch33 for the full mapping, not repeated here.


Predefined Templates — What Each Contains

Template Zone config IKE/IPSec profiles Auth profiles Routing
Service_Conn_Template No Yes (DC CPE vendor profiles) No Static + BGP
Remote_Network_Template Yes (create manually) Yes No Static + BGP
Mobile_User_Template Yes (create manually) No Yes (LDAP/SAML) N/A
Explicit_Proxy_Template No No Yes (SAML, Kerberos) N/A

Bandwidth and Scale Quick Reference

Deployment Per-node capacity Max per tenant
Remote Network (single tunnel) 2 Gbps 25,000 sites
Remote Network (2-link ECMP) 4 Gbps 125 sites (with a Local BGP IP Address configured — see ch41)
Remote Network (4-link ECMP) 8 Gbps 62 sites (with a Local BGP IP Address configured — see ch41)
RN-SPN node 1,000 Mbps Auto-scaled
Mobile User VPN pool /23 min. (1–2 regions) / /19 min. (3+ regions) No fixed limit — see ch07/ch10
Explicit Proxy Port 8080 (SAML) / 8081 (Kerberos) One PAC file per tenant

Key Port Reference

Protocol / Service Port Direction
IKE (IPSec negotiation) UDP 500 Branch/DC ↔ Prisma Access
IPSec NAT-T UDP 4500 Branch/DC ↔ Prisma Access
GlobalProtect portal TCP 443 Endpoint → MU-SPN
GlobalProtect gateway (IPSec) UDP 4501 Endpoint → MU-SPN
Explicit Proxy (SAML auth) TCP 8080 Endpoint → MU-SPN
Explicit Proxy (Kerberos auth) TCP 8081 Endpoint → MU-SPN
BGP TCP 179 CPE ↔ Prisma Access (inside IPSec)
Panorama management TCP 3978 Panorama → Prisma Access

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