C9 GROUP · NETWORK SECURITY
Secure the network layer your business runs on.
C9 designs, deploys and manages firewall, Zero Trust access, VPN, SD-WAN, segmentation, wireless and cloud network controls under one accountable Australian service model.
We review the current edge, access paths, Wi-Fi, cloud connectivity and site-to-site traffic, then build a managed security layer around how your business actually operates.
Firewall, SD-WAN and secure access managed together
Policy, firmware, backup and monitoring lifecycle ownership
Designed for multi-site, hybrid and cloud-connected businesses
Businesses That Trust Us
Secure, future-ready network security for every site.
In today's connected operating environment, businesses face a critical challenge: keeping users, sites, cloud paths and critical systems protected without slowing the work down.
C9 network security services address this challenge head-on. From firewall policy and SD-WAN to VPN, Zero Trust access and segmentation, we help secure the network layer that underpins daily operations.
As businesses continue to modernise, investment in resilient network security is no longer optional. It is the foundation for safe growth, reliable access and accountable technology ownership.
Firewall
Policy, inspection and availability
Zero Trust
Identity and device-aware access
Segmentation
Contain risk inside the network
Managed
Monitoring, patching and reporting
FORTINET FORTIGATE · MANAGED BY C9
FortiGate firewall capability, delivered as a managed security layer.
C9 focuses on the operating model around FortiGate, not just the appliance.
SERVICE COVERAGE
Explore the network security layers C9 can manage.
Move through the security ecosystem without turning the page into a long catalogue. Each layer can be assessed, designed, deployed and managed by C9.
01 / 11Next-Generation Firewall Installation and Management
Deployment, replacement, high availability, policy management, IPS, malware inspection, filtering and backup.
Firewall deployment and replacementHigh-availability configurationFirewall policy managementIntrusion preventionAntivirus and malware inspectionApplication controlWeb and DNS filteringSSL inspectionFirmware upgradesConfiguration backup and recovery
Scope this service
02 / 11Zero Trust Network Security
Identity, device verification, MFA, least-privilege access, conditional access and continuous evaluation.
Identity and device verificationMulti-factor authenticationLeast-privilege accessRole-based access controlConditional accessApplication-specific accessContinuous session evaluationAccess logging
Scope this service
03 / 11Network Segmentation and Micro-Segmentation
VLANs and micro-segmentation for users, servers, POS, IoT, cameras, guests and critical systems.
VLAN design and implementationSeparation of users, servers and critical systemsGuest network isolationIoT and camera network separationPoint-of-sale network segmentationInter-VLAN firewall policiesLateral movement prevention
Scope this service
04 / 11Secure Remote Access and ZTNA
ZTNA, secure VPN, identity-based access, device posture validation and third-party vendor control.
Zero Trust Network AccessSecure VPN implementationIdentity-based VPN accessMulti-factor authenticationDevice posture validationThird-party vendor accessTime-limited administrative accessRemote access monitoring
Scope this service
05 / 11Secure SD-WAN and Multi-Site Connectivity
SD-WAN, site-to-site VPN, hub-and-spoke architecture, failover and application-aware routing.
SD-WAN design and deploymentSite-to-site VPNHub-and-spoke network architectureDual internet and automatic failoverApplication-aware routingBranch firewall deploymentCloud and data-centre connectivityCentralised policy management
Scope this service
06 / 11Network Access Control
Device identification, authorised device control, compliance enforcement and wired or wireless access control.
Device identificationAuthorised and unauthorised device controlCorporate and personal device separationGuest and contractor accessDevice compliance enforcementWired and wireless access controlIoT device visibility
Scope this service
07 / 11Wireless Network Security
Secure corporate Wi-Fi, guest access, enterprise authentication, wireless segmentation and monitoring.
Secure corporate Wi-FiGuest Wi-Fi configurationEnterprise authenticationVLAN-based wireless segmentationClient isolationSecure captive portalsWireless access policiesWireless monitoring and reporting
Scope this service
08 / 11Cloud and Hybrid Network Security
Cloud firewall configuration, virtual network segmentation, site-to-cloud VPN and hybrid logging.
Cloud firewall configurationVirtual network segmentationSecure site-to-cloud VPNCloud access controlIdentity-based cloud accessHybrid network connectivityCloud security policy reviewsCloud logging and monitoring
Scope this service
09 / 11Firewall Policy Review and Optimisation
Rule audits, unused rule removal, any-to-any reviews, duplicate rules and internet-facing service checks.
Firewall rule auditsRemoval of unused and zero-hit rulesReview of any-to-any policiesDuplicate and conflicting rule identificationInternet-facing service reviewsSecurity profile validationAdministrative access reviewsFirewall logging reviews
Scope this service
10 / 11Network Vulnerability and Security Assessments
Firewall, VPN, segmentation, wireless, firmware and administrative interface assessments with remediation priorities.
Firewall configuration assessmentsInternet exposure reviewsVPN security assessmentsNetwork segmentation reviewsWireless security assessmentsFirmware and software vulnerability reviewsAdministrative interface assessmentsSecurity control gap analysisRisk-rated remediation recommendations
Scope this service
11 / 11Managed Network Security
Monitoring, alert review, policy changes, firmware lifecycle, backups, VPN management and posture reviews.
Firewall and network security monitoringSecurity alert reviewFirewall policy changesFirmware lifecycle managementConfiguration backupsVulnerability notificationsVPN managementAvailability monitoringIncident investigation supportSecurity reportingPeriodic security posture reviews
Scope this serviceC9 OPERATING MODEL
Our network security approach
WHERE C9 HELPS MOST
Security for the messy middle between internet, cloud, users and sites.
C9 is practical about network security. We help when the firewall rules have grown over years, VPN access is too broad, Wi-Fi is not segmented, or every site has a different edge configuration.
Multi-site businesses
Standardise branch firewall, VPN, SD-WAN and routing policy across locations.
Hybrid teams
Secure remote access with identity, MFA, device checks and time-limited vendor access.
Retail and POS environments
Separate POS, cameras, guests, IoT, staff devices and back-office systems.
Cloud-connected networks
Review cloud firewalls, site-to-cloud VPN, virtual network segmentation and logging.
Network Security FAQ
Common questions before you secure the network layer.
Yes. C9 can assess and manage supported firewall environments, review the current policy set, clean up risk, handle configuration backups and plan replacement when the platform is no longer suitable.