FortFidesNetwork Architecture

Architecture Proposal

Network Architecture

A proposed architecture with separated network environments, possible service integrations, and controlled storage access.

ARCHITECTURE OVERVIEW
100%
NEW INFRASTRUCTURE · SEPARATE IDENTITY
EXTERNAL LOCATIONS & ACCESS
Existing relationshipProposed access pathPossible service integration

Architecture in context

Separate networks and cloud identities. Only specific service and storage access paths are proposed.

FortFides

FortFides [Network Design]

Proposed architecture · Separate networks and cloud identities · Controlled storage access

Future NetworkTARGET ARCHITECTUREExisting EnvironmentINDEPENDENT NETWORKTechnically separatedStorage VLANDedicated storage segmentMicrosoft 365 / Entra IDExisting cloud identityMicrosoft 365 / Entra IDNew cloud environmentSeparate identity · Cloud servicesService IntegrationsPossible connectionsEmail · SharePoint ·CybersecurityExisting SystemsCurrent users & devicesAccess ControlsStorage access onlyVPN GatewayControlled remote accessFile Server / NASIndependent NAS authenticationMadrid OfficeExisting Site-to-Site / VPNRemote AccessVPN / RDPEXTERNAL LOCATIONS & ACCESS
Existing relationshipProposed access path →Possible service integration

Proposed architecture. Implementation details remain subject to validation. Solid target boundary; dashed independent network boundary. Visual containment does not mean merged networks. Madrid belongs to the existing environment. Component details on pages 2–3; complete Dutch documentation on pages 4–5. The final architecture choice remains open.

FortFides · 1 / 5
FortFides

FortFides [Network Design]

Complete technical information · Proposed architecture · Final design choices remain open

Future Network

TARGET ARCHITECTURE

The target network architecture provides the foundation for the new infrastructure and security standards.

Role
Primary target environment with dedicated infrastructure
Security
Dedicated security controls, subject to final design
Access
Controlled access to approved services
Separation
Independent network domains remain separated

Proposed architecture. Implementation details remain subject to validation.

Existing Environment

INDEPENDENT NETWORK

Continues to operate independently with its own network and cloud identity.

Identity
Existing Entra ID tenant (unchanged)
Systems
Existing users, devices and services
Authentication
Independent identity and authentication
Connections
Selected integrations only; no merged networks

Proposed architecture. Implementation details remain subject to validation.

Storage VLAN

Dedicated storage segment

Dedicated storage segmentation. Access controls and VPN security are separate safeguards.

Role
Dedicated storage network segmentation
Access
Explicitly controlled storage paths
Security
A VLAN alone does not provide complete security
Design
Firewall and access policy subject to final design

Proposed architecture. Implementation details remain subject to validation.

Existing Microsoft 365 / Entra ID

Existing cloud identity

Current identity and collaboration services remain independent. Tenants are not merged.

Identity
Existing, separate tenant
Role
Existing Microsoft 365 and Entra ID services
Continuity
Can remain operational without immediate full migration
Integration
Selected service integrations where required

Proposed architecture. Implementation details remain subject to validation.

New Microsoft 365 / Entra ID

New cloud environment · Separate identity · Cloud services

A separate cloud identity and collaboration environment for the future network.

Identity
New, separate tenant
Services
Email · SharePoint
Security
Security and compliance configuration subject to final design
Integration
Possible service connections; tenants are not merged

Proposed architecture. Implementation details remain subject to validation.

Service Integrations

Possible connections · Email · SharePoint · Cybersecurity

Possible email, SharePoint and cybersecurity service integrations. No shared identity or unrestricted network connection is implied.

Email
Integration or migration, depending on the final design
SharePoint
Integration or migration, depending on the final design
Identity
Separate identities can be retained
Security
Possible cybersecurity service and policy alignment

Proposed architecture. Implementation details remain subject to validation.

FortFides · 2 / 5
FortFides

FortFides [Network Design]

Complete technical information · Proposed architecture · Final design choices remain open

Existing Systems

Current users & devices

Existing systems reach storage only through the intended controlled access path.

Storage access
Controlled NAS access

Proposed architecture. Implementation details remain subject to validation.

Access Controls

Storage access only

Controls restrict the intended storage paths. They do not join the two networks.

Scope
Authorized storage access

Proposed architecture. Implementation details remain subject to validation.

VPN Gateway

Controlled remote access

A controlled VPN access boundary for Madrid and remote users, separate from storage VLAN segmentation.

Status
Existing Madrid site-to-site VPN; proposed storage access to be validated

Proposed architecture. Implementation details remain subject to validation.

File Server / NAS

Independent NAS authentication

Dedicated storage with independent file server authentication and controlled access. Not publicly accessible.

Authentication
Independent local NAS accounts
Dependency
None on the new cloud identity
Access
Approved systems and locations through controlled paths
Security
Not publicly accessible; target security controls apply

Proposed architecture. Implementation details remain subject to validation.

Madrid Office

Existing Site-to-Site / VPN

Office belonging to the existing environment with an already existing site-to-site / VPN connection. Proposed storage access remains subject to final design.

Location
Existing environment · separate office
Connection Method
Existing Site-to-Site / VPN
Scope
Only approved storage and services
Policy
Connectivity and access subject to final security policy

Proposed architecture. Implementation details remain subject to validation.

Remote Access

VPN / RDP

External users reach storage through controlled VPN / RDP access, not a public file server.

Connection Method
VPN / RDP
Security Level
Authentication and access controls subject to final design

Proposed architecture. Implementation details remain subject to validation.

FortFides · 3 / 5
FortFides

FortFides [Network Design]

Nederlandse architectuurdocumentatie · Beide opties zijn in onderzoek; er is nog geen definitieve keuze gemaakt.

Overzicht

Netwerkarchitectuur en opslagtoegang

De architectuur voor de scheiding tussen het bestaande netwerk en het toekomstige netwerk is uitgewerkt, met specifieke aandacht voor veilige en praktische toegang tot de fileserver en opslag.

Er zijn twee mogelijke richtingen: het behouden van de huidige Entra-omgeving met gerichte koppelingen naar de nieuwe omgeving, of een volledige integratie van de bestaande systemen in de nieuwe netwerkomgeving.

De definitieve keuze bepaalt mede hoe de netwerktoegang, fileserver, authenticatie en aanvullende beveiligingsmaatregelen worden ingericht.

Highlights

Uitgangspunten en open keuzes

  • Het ontwerp voorziet in een duidelijke scheiding tussen het bestaande netwerk en het toekomstige netwerk.
  • De bestaande systemen kunnen in principe binnen hun huidige Entra ID- en Microsoft 365-omgeving blijven functioneren, met aanvullende koppelingen naar de nieuwe omgeving voor e-mail en SharePoint.
  • Als alternatief is een volledige integratie van de bestaande systemen in de nieuwe omgeving mogelijk.
  • De toegang tot de fileserver moet beschikbaar zijn voor de bestaande systemen, het kantoor in Madrid en externe gebruikers via de daarvoor bedoelde VPN/RDP-toegang.
  • Bij volledige integratie kan een afzonderlijk VLAN voor de fileserver en de relevante systemen worden overwogen.
  • Authenticatie op de fileserver kan, indien passend bij het definitieve ontwerp, rechtstreeks op de fileserver plaatsvinden en daarmee onafhankelijk blijven van de nieuwe Entra-omgeving.
  • De beveiligingsmaatregelen moeten aansluiten op de geldende cybersecuritystandaard van de nieuwe omgeving.

Netwerkscheiding

Scheiding van de netwerkomgevingen

De bestaande omgeving blijft duidelijk gescheiden van de toekomstige netwerkomgeving. De topology maakt deze scheiding zichtbaar door middel van afzonderlijke netwerkgrenzen en een duidelijke visuele indeling.

Een eventuele visuele opname van de bestaande omgeving binnen de bredere architectuur betekent niet dat beide netwerken zijn samengevoegd.

De uiteindelijke verbindingen en toegangsrechten moeten de gekozen architectuur ondersteunen.

Toegang tot de fileserver

Toegang tot fileserver en opslag

De site-to-site / VPN-verbinding met het kantoor in Madrid bestaat al. De voorgestelde opslagtoegang en fileserver-authenticatie volgen het definitieve ontwerp.

De toegang tot de fileserver en bijbehorende opslag moet beschikbaar zijn voor:

  • Systemen binnen de bestaande omgeving.
  • Gebruikers op het kantoor in Madrid.
  • Externe gebruikers via de daarvoor ingerichte VPN/RDP-toegang.

De definitieve inrichting moet rekening houden met veilige netwerktoegang, toegangsrechten en de gekozen authenticatiemethode.

FortFides · 4 / 5
FortFides

FortFides [Network Design]

Nederlandse architectuurdocumentatie · Beide opties zijn in onderzoek; er is nog geen definitieve keuze gemaakt.

Optie 1 · Bestaande omgeving behouden

Behoud van de bestaande Entra-omgeving

De huidige systemen zijn gekoppeld aan de bestaande Entra ID- en Microsoft 365-omgeving en kunnen in principe binnen deze omgeving blijven functioneren.

Bij deze optie blijven de bestaande identiteit en de huidige omgeving behouden. Aanvullende koppelingen met de nieuwe omgeving kunnen nodig zijn voor e-mail en SharePoint.

Daarnaast moeten de vereiste cybersecuritymaatregelen worden ingericht volgens de geldende standaard van de nieuwe omgeving.

Belangrijk: de exacte integraties en de uiteindelijke toegangsconfiguratie moeten nog worden afgestemd op het definitieve ontwerp.

Optie 2 · Volledige integratie

Volledige integratie in de nieuwe omgeving

Als alternatief kunnen de bestaande systemen volledig worden geïntegreerd in de nieuwe netwerkomgeving.

Bij deze optie kan worden onderzocht of de fileserver en relevante bestaande systemen via een afzonderlijk VLAN met elkaar moeten communiceren.

De precieze VLAN-indeling, netwerktoegang en beveiligingsmaatregelen moeten worden bepaald op basis van het definitieve ontwerp.

Fileserver-authenticatie

Authenticatie op de fileserver

Een mogelijke inrichting is dat gebruikers rechtstreeks op de fileserver authenticeren.

Hierdoor kan de authenticatie op de fileserver onafhankelijk blijven van de nieuwe Entra ID-omgeving, indien dit past binnen de gekozen architectuur en beveiligingseisen.

Deze mogelijkheid moet worden beoordeeld als onderdeel van het definitieve ontwerp.

FortFides · 5 / 5

What this means for the business

  • Continuity: retaining the current Entra environment is one of the options under consideration.
  • Clear boundaries: the proposed separated model does not merge the networks.
  • Fileserver access must remain available to existing systems, Madrid and remote users.
  • Security measures must align with the new environment’s cybersecurity standard.
  • Madrid belongs to the existing environment; its site-to-site / VPN storage path remains controlled.

Access & Security Matrix

Intended access paths; exact connectivity, authentication and security configuration remain subject to final design.

User GroupTarget SystemConnection MethodAuthenticationSecurity Level
Existing SystemsFileserver (NAS)Controlled path · VLAN under considerationDirect NAS authentication under considerationNew Cyber Standard
Madrid OfficeFileserver (NAS)Existing Site-to-Site / VPNDirect NAS authentication under considerationExisting VPN connection
Remote UsersFileserver (NAS)VPN / RDPDirect NAS authentication under considerationSecurity controls subject to final design
M365 ServicesE-mail & SharePointPossible service integrationEntra / M365New Cyber Standard

The diagram illustrates proposed controlled storage paths and possible service integrations. VLAN segmentation and direct NAS authentication are options, not confirmed implementation decisions.

Design considerations

01

Network Isolation

Technically separated environments

02

Continuity

Existing M365 / Entra can be retained under option 1

03

Cybersecurity

Security measures aligned with the new standard, subject to final design

Core

Network separation, continuity and controlled access guide the options under consideration.

Isolated Network Architecture

The proposed separated architecture keeps the existing and new environments independent. Full integration is an alternative under consideration.

Context and technical considerations

Under the separated option, network boundaries and controlled access limit interaction between the environments.

The final design must define network access and security controls. Specific service connections do not imply unrestricted connectivity.

Continuity considerations

The existing Microsoft 365 / Entra environment can remain operational under the option that retains the current identity environment.

Context and technical considerations

Retaining the current environment supports continuity; the final implementation approach still needs to be agreed.

Option 1 retains the current Entra ID and Microsoft 365 environment, with possible email and SharePoint connections. Option 2 considers full integration.

Secure Access Model

Controlled fileserver access for existing systems, Madrid and remote users, with segmentation and authentication subject to final design.

Context and technical considerations

Fileserver access must be practical and secure for existing systems, Madrid and remote users.

A dedicated storage VLAN and direct fileserver authentication are possibilities to assess against the selected architecture and security requirements.

Questions or Feedback?

If you have any questions or would like to go over any aspect of the proposed architecture, please get in touch with us.

Recommendation | FortFidesrecommendation@fortfides.comFortFides B.V.

FortFides B.V. — Boutique IT, Cloud & Cybersecurity. This proposal is valid until expressly withdrawn.