In short
Single vendor SASE means one supplier provides both the SD-WAN and the Security Service Edge (SSE), with one policy, console and contract. Dual-vendor SASE pairs one vendor's SD-WAN with another's security cloud over tunnels. UK organisations mid-way through a WAN contract often start dual-vendor; new builds and branch refreshes often go single-vendor.
Get a quote for single vendor SASE
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Single-vendor, unified, dual-vendor and vendor-neutral SASE: the terms
| Term | What it means |
|---|---|
| Single-vendor SASE | SD-WAN and the Security Service Edge (SSE) come from one supplier, sharing one policy model, management console and support route |
| Unified SASE | Usually the same thing: networking and security on one platform with one policy. Vendors use it to stress a single console or agent |
| Dual-vendor (multi-vendor) SASE | A Security Service Edge (SSE) from one supplier joined to SD-WAN or firewalls from another, through IPsec tunnels or a documented integration |
| Vendor-neutral SASE provider | A supplier or managed service provider that works with several SASE platforms, rather than a platform in its own right |
| Bundled platform | A vendor's own package of SASE components, sold and licensed together |
The labels are marketing terms rather than standards, so check what each vendor actually includes. For the components themselves, see SASE vs Security Service Edge (SSE) and SASE architecture.
Not sure which option fits? Ask us
Tell us what you need and we will recommend the right option for your organisation, with a quote.
Single vendor SASE vs dual-vendor SASE: the trade-offs
| Single-vendor SASE | Dual-vendor SASE | |
|---|---|---|
| Console and policy | One console and one policy for sites and users | Two consoles; security policy in the Security Service Edge (SSE), routing policy in the SD-WAN |
| Keeping your SD-WAN or firewalls | Usually means replacing them with the vendor's edge | Keep the SD-WAN or firewalls you own and tunnel them in |
| Branch tunnels | Often set up automatically between the vendor's edge and its cloud | IPsec tunnels you configure and maintain, or a vendor integration |
| Contracts and renewals | One vendor, often one renewal cycle | Two vendors, two renewal cycles to line up |
| Skills | One platform for the team to learn | Two platforms, often run by network and security teams separately |
| Support | One support route for the whole path | Two support routes; faults at the join need both |
| Migration | Easiest as part of a branch refresh | Easiest mid-contract: add security now, change the WAN later |
| Choice | You take the vendor's strengths across the board | You can pick the Security Service Edge (SSE) and SD-WAN separately |
Neither model is more secure by itself. What matters is that policy covers every user and site, that old access routes are removed, and that whoever runs it can see what is happening across both halves.
Which model the platforms we supply offer
| Platform | Single-vendor route | Dual-vendor route |
|---|---|---|
| Cisco SASE | Cisco Secure Access (opens in a new tab) with Cisco Catalyst SD-WAN (automated IPsec tunnels, documented by Cisco) or Meraki SD-WAN (opens in a new tab) | Secure Access with third-party SD-WAN (Cisco documents HPE Aruba Networking EdgeConnect) or firewalls over IPsec |
| Check Point SASE | Internet Access, Private Access, SaaS Security and SD-WAN in one platform, which Check Point calls a single-vendor SASE solution | Ask us about connecting existing site edges |
| HPE Aruba Networking SASE | HPE Networking EdgeConnect SD-WAN, which HPE positions as the foundation for a unified SASE architecture, with HPE's Security Service Edge (SSE) | HPE says EdgeConnect AppExpress can pick paths across Security Service Edge (SSE) points of presence; ask us about pairing it with another vendor's Security Service Edge |
| Barracuda SecureEdge | ZTNA (opens in a new tab), firewall as a service (opens in a new tab), web security and Secure SD-WAN on one SASE platform | Ask us about connecting existing site edges |
| WatchGuard SASE | FireCloud Total Access with Firebox appliances, managed in WatchGuard Cloud | Ask us about connecting other site edges |
| Exium SASE | Exium SASE with Cyber Gateway at each site, in one unified interface | SASE Pro can connect existing firewalls during a migration |
| Todyl SASE | Agent-led SASE on Todyl's Secure Global Network | SASE Tunnel (IPsec) from your existing firewall or router |
| Timus SASE | A unified SASE platform with agent, cloud firewall and secure web gateway | Ask us about connecting sites |
Sources: Cisco doc 225524 (opens in a new tab), Cisco's EdgeConnect integration guide (opens in a new tab) and Cisco SASE (opens in a new tab), Check Point SASE (opens in a new tab), HPE Networking EdgeConnect (opens in a new tab), Barracuda SecureEdge (opens in a new tab), WatchGuard's FireCloud Total Access announcement (opens in a new tab), Exium (opens in a new tab), Todyl SASE (opens in a new tab) and Timus Networks (opens in a new tab), checked 9 November 2026. All the platforms are compared on SASE vendors.
Is single vendor SASE the right fit for you?
We will check it against your systems and requirements and recommend the right option.
Unified SASE: what vendors mean by it
"Unified SASE" is how several vendors describe a single platform for networking and security. HPE says EdgeConnect is the foundation for "a unified SASE architecture"; Check Point's SASE FAQ describes combining internet access, ZTNA and SaaS security "into a unified platform"; Timus describes "a unified SASE platform" for managed service providers; and Exium offers "One Unified Interface".
In practice, ask four questions of any unified SASE claim:
- Is there one policy for users and sites, or two policies that sync?
- Is there one agent on the device for private access and web protection?
- Are branch tunnels to the security cloud set up automatically?
- Is it one contract and one support route, or several products sold together?
A platform can be strong without ticking every box, but the answers tell you how much joining-up work is left for your team.
Vendor-neutral SASE providers vs bundled platforms
A bundled platform is what a vendor sells: its own Security Service Edge (SSE), SD-WAN and agent, licensed together. A vendor-neutral SASE provider is the organisation that helps you choose, buy, deploy and run a platform, and can work with more than one. The two are different decisions:
- The platform decides the features, the policy model and how sites connect.
- The provider decides how the platform is fitted to your estate: which model you choose, how the migration is phased, and who looks after policy afterwards.
Forever Systems supplies several SASE platforms, including Cisco, Check Point, HPE, Barracuda, WatchGuard, Exium, Todyl and Timus, so we can advise across single-vendor and dual-vendor models and recommend the one that fits what you already run. How to compare suppliers is on SASE providers, and ongoing management on managed SASE.
Which model suits whom
| Your situation | Usually fits | Why |
|---|---|---|
| New sites, or a full branch and router refresh due | Single-vendor SASE | Replace networking and security together under one policy |
| Already standardised on Cisco, Meraki, HPE or WatchGuard kit | Single-vendor SASE from that vendor | Builds on the kit and skills you have |
| SD-WAN or firewalls with years left on contract | Dual-vendor SASE | Add the Security Service Edge (SSE) now; revisit the WAN at renewal |
| Small team, few sites, mostly remote staff | Single-vendor or agent-led SASE | One console keeps day-to-day work small |
| Separate network and security teams with strong existing tools | Dual-vendor SASE | Each team keeps its platform; the join is a documented tunnel |
If you are unsure, start with the Security Service Edge (SSE) on a platform that also offers SD-WAN. That keeps both doors open: tunnel your existing sites in now, and move them to the same vendor's SD-WAN later if it suits.
Moving to single-vendor SASE without a big bang
- Start with users. Roll out the Security Service Edge (SSE) and ZTNA to remote staff first, so the VPN can start to close.
- Tunnel existing sites in. Connect current SD-WAN or firewalls to the security cloud over IPsec, which gives you dual-vendor SASE for now.
- Replace site edges at renewal. Swap branch routers or SD-WAN appliances for the vendor's own edge as contracts end, starting with the simplest sites.
- Consolidate policy. Move remaining site rules into the shared policy and retire the old consoles and access routes.
The full plan is on SASE implementation, and the branch options are on SASE vs SD-WAN.
How Forever Systems helps
We can review your SD-WAN, firewalls, remote access and contract dates, then recommend single-vendor or dual-vendor SASE and the platform that fits. We can quote the licences and hardware, help set up a pilot where the vendor offers one, and plan a phased move so nothing changes all at once. Subscriptions can be billed monthly, terms confirmed at quote, and scope and timescales are confirmed at quote too. Contact us to talk through the options.
How Forever Systems helps with SASE
Forever Systems supplies several SASE and Security Service Edge (SSE) platforms, so we can recommend the one that fits your sites, your people and the network and security kit you already run.
- Assess first: we look at your current VPN, firewalls, WAN links and identity set-up, and the applications people need to reach
- Help you choose: single-vendor or dual-vendor SASE, or Security Service Edge (SSE) first and SD-WAN later, matched to what you need now
- Pilots and phased roll-out: we can help you start with one group of users or one site, then extend policy step by step
- Licensing in one place: subscriptions can be billed monthly, with terms confirmed at quote
We work with businesses, schools, charities and public sector organisations. Pricing depends on users, sites, components and term, so ask us for a quote.
Frequently asked questions
What is single vendor SASE?
SASE where one supplier provides both the SD-WAN and the Security Service Edge (SSE), so sites and users share one policy, console and support route. Cisco, Check Point, HPE, Barracuda and WatchGuard all offer a single-vendor route.
What is the difference between single-vendor and dual-vendor SASE?
Single-vendor SASE uses one supplier for networking and security. Dual-vendor SASE joins one vendor's SD-WAN or firewalls to another vendor's Security Service Edge (SSE), usually over IPsec tunnels, so you keep kit you already own.
What is unified SASE?
A term vendors use for networking and security delivered on one platform with one policy and console. It usually means the same as single-vendor SASE, so check whether the policy, agent and support route really are shared.
Is single vendor SASE better?
Not automatically. It is simpler to run and tunnels are often automatic, but it usually means replacing your branch edge. Dual-vendor SASE can be the better choice while an SD-WAN contract still has years to run.
Can we start dual-vendor and move to single-vendor later?
Yes. A common route is to adopt the Security Service Edge (SSE) first, tunnel existing sites into it, and replace branch edges with the same vendor's SD-WAN at renewal.
Still have a question about single vendor SASE?
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