Connect. Secure. Manage.
Network Merger Integration
Integrate networks after a business merger, resolving address conflicts, routing boundaries and security policies without forcing immediate consolidation.
Devices supported
across the UK
Client locations
supported
Traffic handled
at peak time
Average
response time
Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.
Network merger integration connects organisations without assuming that their existing networks can safely become one unrestricted environment. MCI plans Cisco and Meraki integration around the business activities that need to begin, the systems that must remain separated and the longer-term architecture. The objective is useful connectivity with understood boundaries from the start.
An acquisition or merger can create pressure to move quickly. Staff may need access to shared applications before the final operating model is settled. A controlled interim design can support that requirement while preserving time to make the permanent decisions properly.
A clear requirement
Turn the business need into a practical network scope with visible dependencies.
A controlled delivery
Plan implementation, testing and rollback before production changes begin.
A supportable result
Leave useful records, ownership and escalation routes behind.
Discover the differences that affect integration
We review addressing, routing, security controls, management systems and important application dependencies in both environments. Similar-looking networks may use conflicting address ranges or depend on different authentication and name-resolution services.
Ownership and access also need attention. Circuits, licences, equipment and management organisations may not all be held by the same legal or operational entity. Those arrangements can affect what can be changed and when.
Network due diligence can identify these issues before a transaction. Where the integration begins after completion, the same uncertainties still need to be resolved rather than assumed away because the businesses now share an owner.
Standards & partnerships
Confidence in the team behind your network.
Cisco Partner
Cisco Meraki
Cyber Essentials
Cyber Essentials PlusMCI Network Services is operated by Proxar Ltd. Certifications apply to the certified legal entity and the scope of its certificates. View accreditation information
Define the first business connections precisely
The immediate requirement is often narrower than a complete network merger. A team may need access to one application, a shared service or a particular office resource. We identify those flows and the controls needed to permit them.
This creates a safer basis for interim connectivity than joining the networks and deciding later which access was necessary. The initial design can preserve distinct trust boundaries while supporting the activities the business has prioritised.
Temporary access needs an owner and a review point. Otherwise an expedient integration link can become a permanent, poorly understood dependency that survives long after the original project team has moved on.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Resolve addressing and routing conflicts deliberately
Overlapping address space can affect routing, VPN connectivity and application assumptions. The appropriate response may involve renumbering, a controlled translation arrangement or a staged separation of routing domains, depending on the actual requirements.
Each option has consequences. Translation can make some connections possible while adding diagnostic complexity. Renumbering can simplify the long-term design but require changes across applications and access policies. The choice should be made with those dependencies visible.
Network address renumbering provides a focused route where address changes are required. The integration design establishes which conflicts must be resolved immediately and which can remain isolated during a transition period.
Different environments. The same care.
Built around the work
your network supports.
Finance, banking and the wider private sector. We start with the systems and people that depend on your connections.
Finance & banking
Market-data paths, routing and provider coordination on clients’ behalf.
Financial-market services ↗Offices & multi-site teams
Reliable access between people, workplaces and business applications.
Office network design ↗Data centres & cloud
Network boundaries, workload connections and operational ownership.
Data centre networks ↗Choose the target operating model
The merged organisation needs a view of who will run the network, how changes are approved and which management platforms will remain. Combining companies does not automatically justify combining every management environment on the first day.
For Cisco and Meraki estates, we assess the role of each platform and the implications of consolidation. Administrator ownership, monitoring, configuration standards and support contracts should be considered alongside the physical network.
The target may be one standard architecture or several controlled patterns for different parts of the business. What matters is that the exceptions have a purpose and that operational responsibility is clear.
Move from temporary connectivity to a sustainable design
The integration plan identifies phases, acceptance criteria and the dependencies that must be completed before each stage. Applications and security teams participate in validating the required access, while network tests establish the intended paths and restrictions.
Rollback and separation remain important. If a phase cannot be accepted, the team needs to understand how to restore the previous service without leaving unintended access between the organisations.
At the end of the programme, temporary policies, obsolete links and duplicate records are reviewed. Enterprise network design can provide the longer-term architecture, while the integration work leaves a clear account of what was connected, why and under whose control.
Merger integration questions
Can we connect the companies before choosing a common platform?
Yes, through a deliberately scoped interim design where the requirements permit it. The connection should enable specified business activity while preserving appropriate boundaries. It should not become an unrestricted merger of two estates whose risks and dependencies are not yet understood.
Do overlapping IP ranges always require immediate renumbering?
No. There may be controlled interim options, but their suitability depends on the applications and topology. We explain the trade-offs and identify when a temporary workaround would make the eventual integration harder or less supportable.
Can you work with both incumbent IT teams?
Yes. Their knowledge is important to understanding the existing environments. The project needs clear authority, a shared decision process and agreed responsibilities so technical work does not depend on conflicting instructions from different parts of the organisation.
What should the initial brief contain?
The required business connections, transaction timetable, main sites and known platform differences are useful. Discuss network merger integration to separate immediate access needs from the decisions that belong in the longer-term design.
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 6566Choose option 1
sales@proxar.co.ukUK-wide service.
Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.
Existing customers should use their agreed support and escalation channels. This form is for service enquiries, not a monitored emergency ticket.
Tell us what you need.
A short outline is enough. Please do not include passwords or sensitive network details.
Thank you. Your enquiry has been submitted.
Please check your name, email and message, then try again.
Your form session expired. Please try again.
Please wait a minute before sending another enquiry.
We could not submit your enquiry. Please call or email us instead.