Cisco & Meraki specialists. Across the UK.
+44 203 196 6566 · option 1sales@proxar.co.uk

Connect. Secure. Manage.

Cisco Secure Firewall Deployment

Deploy Cisco Secure Firewall with agreed interfaces, routing, NAT, access rules and logging, followed by application-focused acceptance tests.

Cisco Partner since 2009 Projects & ongoing support

Illustrative Cisco and Meraki fibre network rack with structured cabling
Your network. Properly considered.Design · Implementation · Support
1,000+

Devices supported
across the UK

20+

Client locations
supported

Nearly 8 Tbps

Traffic handled
at peak time

3 min

Average
response time

Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.

Cisco Secure Firewall deployment puts an agreed traffic policy into use. We plan the device, management link, routes, address translation and inspection together. The cutover has controlled stages and a recovery route. Tests check the apps that depend on the firewall, so acceptance covers the working service as well as the installed equipment.

01

Defined trust

Make access boundaries explicit rather than relying on an assumed internal network.

02

Controlled access

Connect identity, policy and network enforcement to the services people actually use.

03

Evidence for change

Test the intended security outcome and retain useful operational records.

Confirm the design inputs

We collect the network diagram, interface handoffs, addressing, permitted flows and the customer's availability needs. The app owner identifies representative transactions and any dependencies on external partners. Those inputs determine what needs testing and prevent a rollout from becoming an open-ended exercise in discovering needs during the change window.

We also establish the operational boundary. The customer, MCI, carrier and any other supplier need to know who owns each part of the path. A firewall project may require a routing change or an external allow-list update that the rollout team cannot perform itself. Those dependencies are scheduled and approved before the equipment is placed in the live traffic path.

Illustrative enterprise Cisco network rack in a modern office environment
01Enterprise switching and routing, built to be operated.
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Cisco MerakiCisco Meraki
ISO 9001Quality management
ISO 27001Information security
Cyber EssentialsCyber Essentials
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Prepare the platform and management service

The chosen Cisco hardware or virtual appliance is checked against the required software, licences and feature combination. We review interfaces, optics, capacity and environmental needs, including the resources needed when inspection is enabled. Sizing follows the intended workload rather than an assumption that nominal interface speed equals usable inspected throughput.

Management access is configured through an appropriate protected path. We establish setup ownership, administrator roles, time services, logging and backups. Where Firewall Management Center or a supported cloud service is used, registration and rollout authority are checked before the production change. An engineer must be able to distinguish a management problem from a forwarding problem.

Illustrative Cisco and Meraki equipment in a modern data-centre aisle
02Resilient infrastructure from rack to service path.

A useful starting point

Not sure where to start?

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Build policy from approved flows

We create objects and rules that reflect the access matrix, with meaningful descriptions and identifiable owners. NAT, routing and security rules are reviewed together because they affect how traffic is matched and returned. The setup is checked for broad defaults, shadowed rules and assumptions about addresses that change during the migration.

Inspection policies are introduced according to the agreed scope. We find the traffic requiring app control, intrusion prevention or decryption and document exceptions. The customer approves the intended balance between enforcement and app compatibility. We do not add broad bypasses simply to make an incomplete test pass.

Illustrative Cisco and Meraki equipment in organised data-centre racks
03Data-centre connectivity with clear physical and logical boundaries.

Stage the deployment and recovery route

Where practical, we prepare and check the setup before the equipment reaches site. The staging process checks supported software, interface assignments and management recovery. A labelled port map and cable plan reduce the chance of a correct logical design being connected incorrectly during a short maintenance window.

Rollback is defined in terms of the service, not only a setup file. We consider cabling, external routing, translated addresses and app sessions. The plan sets out the point beyond which returning to the previous state requires extra work. That lets the customer make an informed decision if the cutover produces an unexpected result.

Illustrative Cisco and Meraki network operations centre with monitoring displays
04Visibility, monitoring and operational control.

Execute with clear stop points

The rollout sequence separates physical installation, management checks, policy rollout and traffic cutover. At each stage, engineers compare the observed result with the plan. A failed prerequisite is resolved before the next step rather than hidden by continuing with unrelated changes to the settings.

For a resilient pair, both devices and their interconnection are checked. We check the normal roles, synchronisation and the forwarding path expected after an agreed failure. Redundancy is not accepted solely because a dashboard shows two devices. The app test must show that the surviving path behaves as intended within the stated limits.

Illustrative Cisco and Meraki data-centre network infrastructure
05Network infrastructure designed around the workloads it carries.

Validate legitimate and blocked traffic

Acceptance includes representative business transactions, expected translations, return paths and required security restrictions. We also check logging so that a denied connection can be investigated later. A successful ping or web request is only one observation. It does not prove that every required app or protection is working.

The test record makes unverified cases visible. Some external systems may be unavailable during the window, or a failure test may be unsafe in production. Those limitations are documented with an owner and follow-up action rather than counted as passed. The customer receives evidence of what was actually exercised.

Illustrative Cisco and Meraki fibre network rack with structured cabling
06Fibre, switching and the physical path behind the service.

Handover for controlled operation

MCI supplies the final diagrams, records of the settings, rule ownership, acceptance results and recovery procedure. The support team receives the monitoring and escalation information needed to operate the boundary. Ongoing rule changes and software maintenance can be agreed through Cisco Secure Firewall services, with service hours, approvals and vendor support duties stated separately from the initial rollout.

Illustrative enterprise Cisco network rack in a modern office environment
07Enterprise switching and routing, built to be operated.

Technical references

Illustrative Cisco and Meraki equipment in a modern data-centre aisle
08Resilient infrastructure from rack to service path.

Talk to a specialist

What does your network need next?

Tell us what you are planning, changing or trying to improve. We will help define a practical next step and the engineering scope.

+44 203 196 6566

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sales@proxar.co.uk

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Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.

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