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Service Deep-Dive - Network

Your network was set up once
and never properly reviewed.

Flat networks, consumer Wi-Fi, and no traffic segmentation are the SME norm. We design and implement infrastructure that matches enterprise security standards at your scale.

Cisco & Palo Alto ExperiencedSD-WAN DeploymentEnterprise Wi-Fi Design
What it covers

Everything included in this service

Delivered by senior engineers. Scoped and priced upfront. No scope surprises.

🔀

Network Design & Segmentation

VLAN architecture separating corporate, guest, IoT, and server traffic. Segmentation to contain lateral movement in the event of a compromise.

📡

Enterprise Wi-Fi Deployment

Cisco Meraki or Ubiquiti UniFi access point design, placement, and configuration. Coverage surveys, channel planning, and seamless roaming.

🔥

Next-Gen Firewall

Palo Alto or Cisco firewall with application-aware policies, IDS/IPS, SSL inspection, and web filtering. Zone-based segmentation between internal and DMZ.

🌐

SD-WAN & Multi-Site Connectivity

SD-WAN for multi-site organisations. Automatic failover between broadband and mobile. Site-to-site VPN and MPLS alternatives.

📊

Network Monitoring & Alerting

SNMP monitoring, bandwidth utilisation, and uptime alerting for all network infrastructure. Proactive congestion and hardware failure identification.

🔧

Infrastructure Refresh & Documentation

End-of-life hardware identification and replacement. Structured cabling assessment, patch panel labelling, and network topology documentation.

Platform overview
Network, Wi-Fi & Infrastructure
Your network was set up once.
It was never designed.
Enterprise-grade segmentation, Wi-Fi, and firewall at SME scale — monitored continuously, documented fully.
70%
Of SME networks have no VLAN segmentation
3x
Performance gain after enterprise Wi-Fi redesign
100%
Of 4DS networks fully documented
⚠ What an undesigned network enables
Lateral movement after compromise Guest traffic reaching servers IoT devices on corporate subnet No failover on outage Undetected congestion Undocumented changes
Your network infrastructure stack
Network
Network Design & Segmentation
VLAN Architecture
Corporate VLAN — workstations & servers Guest VLAN — internet only, isolated IoT VLAN — printers, cameras, AV equipment Management VLAN — switches & APs DMZ — public-facing services isolated
Wi-Fi
Enterprise Wi-Fi
Cisco Meraki / Ubiquiti UniFi
RF coverage survey & AP placement Channel planning & interference mitigation Seamless roaming across floors Centralised cloud management Per-SSID VLAN tagging
Firewall
Next-Gen Firewall
Palo Alto / Cisco
Application-aware policy enforcement IDS/IPS — intrusion detection & prevention SSL/TLS traffic inspection Web filtering & category blocking Zone-based segmentation (LAN / DMZ / WAN)
SD-WAN
SD-WAN & Connectivity
Multi-Site / Failover
Primary broadband + 4G/5G failover Automatic failover — sub-60 second cutover Site-to-site VPN between offices QoS — Teams & VoIP traffic prioritised SD-WAN path selection & load balancing
Monitoring
Monitoring & Documentation
SNMP + Full Topology Docs
SNMP uptime monitoring — all devices Bandwidth utilisation reporting Hardware health & EOL alerting Full network topology diagram Monthly infrastructure report
Network Segmentation
VLAN architecture containing lateral movement. Mandatory for NIS2 network security controls and most public sector ICT frameworks.
Documentation & Change Control
Full topology diagrams, firewall policy summaries, and change management logs — produced as standard deliverables, not afterthoughts.
Availability & Resilience
Automatic failover, redundant links, and monthly uptime reporting. SLA-backed infrastructure for business-critical environments.
Enterprise network design. At SME scale and budget.
Tailored to your role

What this means for you

Select your role to see how this service maps to your specific situation.

A network built by an ISP engineer and never revisited is not a managed network

Most SME networks were set up when the business moved into its premises, configured by whoever installed the broadband, and never touched since. Without VLAN segmentation, guest and corporate traffic share the same subnet. Without monitoring, outages are discovered by users rather than alerts. Without documentation, every troubleshooting session starts from zero.

No network documentation - topology unknown, switch ports unlabelled, VLAN config undocumented
Guest and corporate Wi-Fi on the same subnet with no segmentation
Network hardware approaching or past end of life with no replacement plan in place
Wi-Fi dead zones in parts of the building affecting productivity and call quality
Discuss this with an engineer →

By the numbers

70%
Of SME networks have no VLAN segmentation - a single compromise reaches everything
3x
Typical performance improvement after enterprise Wi-Fi redesign vs consumer AP deployment
100%
Of 4DS-managed networks have documented topology and configuration baseline

You need centralised visibility, not a call from a user to tell you the network is down

Reactive network management means finding out about problems from users rather than from monitoring. We deploy centralised network management with proactive alerting for bandwidth congestion, hardware failures, and uptime thresholds - so you know about a problem before it becomes a support ticket. Every device is documented, every port is labelled, and every configuration change is logged.

No centralised monitoring - outages discovered by users, not by alerts
Network hardware inventory is incomplete or undocumented
No change management process for network configuration - changes made without logging
Firewall rules accumulated over years with no review or rationalisation
Discuss this with an engineer →

By the numbers

100%
Of 4DS network engagements produce a documented topology and hardware inventory
Monthly
Network uptime and bandwidth utilisation reporting under 4DS managed infrastructure
Zero
Unmonitored network devices in a 4DS-managed environment

Poor network infrastructure is a quantifiable daily productivity cost

When calls drop on Teams, Wi-Fi is patchy in the boardroom, or a single user downloading large files saturates the connection for everyone else, that is a measurable cost to the business. Enterprise network design eliminates these problems with quality-of-service policies, proper access point placement, and automatic failover to a secondary connection if the primary goes down.

Staff regularly report Wi-Fi problems especially in meeting rooms and on upper floors
VoIP and Teams call quality degrades or drops during peak usage
No failover connectivity if the primary internet connection goes down
You have no visibility into bandwidth utilisation or what is consuming your connection
Discuss this with an engineer →

By the numbers

8 hrs
Estimated productivity lost per staff member per year due to network reliability issues
Automatic
Failover to mobile 4G/5G backup connection if primary broadband fails
Automatic
Failover to secondary connection — no manual intervention required during an outage

Network documentation and segmentation evidence is required in infrastructure assessments

Public sector and regulated industry contracts frequently require vendors to provide network topology documentation, evidence of network segmentation, firewall policy summaries, and change management procedures. A flat, undocumented network cannot satisfy these requirements. Retrospective documentation rarely passes scrutiny. We produce the infrastructure documentation as a standard deliverable of every engagement.

No network topology diagram to provide in a tender or audit submission
No VLAN segmentation - cannot demonstrate network security controls in a technical assessment
Firewall policy undocumented or using default ISP-supplied rules
No change management process or configuration backup for network infrastructure
Discuss this with an engineer →

By the numbers

100%
Of 4DS network engagements produce full topology and configuration documentation
ISO 27001
Controls configured to ISO 27001 alignment — evidence available for submissions
48 hrs
Typical turnaround for network architecture evidence pack for tender
What a first review typically finds

The gaps we find in almost every environment

These are not edge cases. They are the standard state of an SME environment without an independent review.

7/10

Flat network with no segmentation

Guest Wi-Fi on the same subnet as servers. IoT devices on the same network as workstations. One compromised device reaches everything.

6/10

Consumer-grade access points

ISP-supplied or consumer routers providing Wi-Fi in a multi-floor office. Dead zones, interference, no central management.

5/10

No network documentation

No topology diagram. Switch ports unallocated. VLAN configuration unknown. Critical gap in any security incident or infrastructure change.

How we deliver it

The 4DS delivery process

Four stages. No handovers to junior staff mid-project. No scope surprises.

STEP 01

Network Audit

Full topology discovery, hardware inventory, VLAN configuration review, and traffic flow documentation produced from scratch if none exists.

STEP 02

Design

VLAN segmentation, Wi-Fi coverage plan, firewall zone policy, and connectivity architecture presented for approval before any work begins.

STEP 03

Implementation

Hardware procurement, installation, and configuration in agreed change windows with rollback plan documented.

STEP 04

Monitoring

All hardware under centralised monitoring. Uptime alerts, bandwidth reporting, and hardware health included in monthly infrastructure report.

Get in touch

Get in touch

Tell us your site count, headcount, and the main network issues you are experiencing. No commitment required.

  • ✓Full topology discovery — we document what exists before recommending anything
  • ✓Segmentation, Wi-Fi, firewall, and connectivity reviewed as a single architecture
  • ✓Scoped and priced upfront — clear costs before any commitment

Get in touch

Tell us your site count, approximate headcount, and the main network issues you are experiencing.

No commitment required.

✓

Enquiry received

No commitment is required at this stage.