Description
Sophos Firewall Virtual for VMware

Sophos Firewall Virtual for VMware provides a virtualized approach to deploying Sophos Firewall within VMware environments. Instead of installing the firewall on dedicated hardware, organizations can deploy the Sophos Firewall virtual appliance as a virtual machine on VMware ESXi.
Sophos provides a VMware-specific OVF image and deployment workflow through the vSphere Client. This allows administrators to import the virtual appliance, assign the required compute and network resources, connect it to the appropriate VMware networks, and complete the initial firewall setup.
The current Sophos documentation lists 1 vCPU, 4 GB vRAM, 2 vNICs, 32 GB primary disk, and 80 GB report disk as minimum requirements for the virtual firewall. The actual resource allocation should be planned around the purchased license and expected deployment requirements.
VMware Deployment
Sophos Firewall Virtual for VMware is designed for deployment on VMware ESXi. The installation process uses an OVF package that can be imported through the vSphere Client.
During deployment, administrators select the appropriate virtual machine location, compute resource, storage configuration, and virtual networks. The available Sophos VMware templates include different hardware and virtual NIC configurations.
Virtual Networking
Network configuration is an important part of a Sophos Firewall VMware deployment. The current minimum requirement is two virtual network interfaces.
Sophos provides templates supporting E1000E and VMXNET 3 virtual NIC configurations. VMXNET 3 is VMware-specific and is documented by Sophos as faster than E1000E, although E1000E is recommended if VMXNET 3 causes a deployment error.
Licensing and Resources
Sophos Firewall virtual appliances require the appropriate SFOS licensing. Sophos states that a base license is required for all hardware and virtual firewalls, while additional features can be purchased through individual subscriptions or bundles.
For virtual deployments, administrators must configure vCPU and vRAM according to the purchased license and must not exceed the licensed resource limits. When increasing virtual resources, Sophos also recommends increasing the report disk to accommodate additional log entries.
Selection Guide
For VMware Deployment
Confirm that your infrastructure uses a supported VMware environment and that VMware ESXi and the required management tools are available.
For Virtual Resources
Plan the vCPU, vRAM, network interfaces, primary disk, and report disk according to Sophos’ current requirements, the purchased license, and the expected firewall workload.
For Virtual Networking
Determine which VMware network configuration is appropriate for your deployment. Sophos provides E1000E and VMXNET 3 templates, with VMXNET 3 offering a VMware-specific paravirtualized network driver.
For Licensing
Select the required Sophos Firewall base license and applicable subscriptions according to the security features and deployment requirements.
Always Verify
Check the current Sophos Firewall VMware documentation, licensing terms, supported VMware platform information, and deployment requirements before purchasing or deploying.
Installation Notes
Sophos Firewall Virtual for VMware is deployed using the Sophos Firewall OVF image. The documented workflow is to download the VMware virtual installer, extract the package, sign in to the vSphere Client, and select Deploy OVF Template. Administrators then select the required OVF and virtual disk files, choose the compute resource and storage configuration, connect the appropriate networks, and complete deployment.
After the virtual machine is deployed, it can be powered on and accessed through the Sophos Firewall web administration interface for registration and initial configuration. Sophos documents https://172.16.16.16:4444 as the initial web administration address in its VMware installation procedure.
Do not treat the VMware platform’s own backup tools as a substitute for Sophos Firewall backup procedures. Sophos states that firewall backups created using virtual platform vendor backup tools are not supported.
Best Practices
- Verify the current VMware and Sophos Firewall compatibility requirements before deployment.
- Allocate at least the documented minimum virtual resources.
- Do not exceed the vCPU and vRAM limits of the purchased Sophos license.
- Use the appropriate Sophos VMware template for the intended virtual NIC configuration.
- Consider VMXNET 3 where appropriate for the VMware environment.
- Maintain sufficient report disk capacity for firewall reporting and logs.
- Keep the virtual firewall and VMware infrastructure properly maintained.
- Document the virtual networks connected to each firewall interface.
- Use Sophos-supported backup and restore procedures rather than relying on VMware platform backups.
- Review current Sophos documentation before making major changes to the virtual firewall configuration.
Benefits for IT Teams
Sophos Firewall Virtual for VMware can simplify firewall deployment for organizations that already operate virtualized infrastructure. Instead of procuring dedicated firewall hardware for every deployment, IT teams can deploy a virtual firewall instance using existing VMware resources where the architecture is suitable.
The OVF-based installation process provides a defined deployment method, while configurable virtual resources allow administrators to plan the VM around the applicable Sophos license and infrastructure requirements.
For distributed IT environments, using a standardized virtual firewall deployment model can also help teams maintain consistent deployment practices across VMware environments.
Main Benefits
VMware-Based Deployment
Deploy Sophos Firewall as a virtual machine on supported VMware infrastructure.
Benefit: Integrate firewall services into an existing virtualized environment.
Reduced Physical Hardware Dependency
A virtual firewall does not require a dedicated physical firewall appliance for the deployment.
Benefit: Use existing server and virtualization infrastructure for network security.
Flexible Resource Allocation
vCPU and vRAM can be configured based on the purchased license and deployment requirements.
Benefit: Align virtual resources with the planned firewall deployment.
Flexible Virtual Networking
Sophos provides VMware virtual NIC templates, including E1000E and VMXNET 3 options.
Benefit: Select an appropriate virtual network configuration for the VMware environment.
Standardized Deployment
The VMware virtual appliance can be deployed using Sophos-provided OVF files through vSphere Client.
Benefit: Follow a documented installation process instead of building the firewall VM manually.
Virtual Infrastructure Security
Sophos Firewall supports security deployments inside virtual infrastructure alongside virtualized workloads.
Benefit: Extend network security into VMware-based environments.
Typical Use Cases
1. Virtual Data Center Security
Deploy Sophos Firewall as a virtual network security layer within a VMware environment supporting multiple virtual workloads.
2. Branch Infrastructure
Organizations with VMware-based branch or remote infrastructure can use a virtual firewall where a physical appliance is not the preferred deployment model.
3. Network Segmentation
Use the virtual firewall within an appropriately designed VMware network architecture to control traffic between network segments and virtual workloads.
4. Virtualized Business Applications
Protect traffic associated with business applications hosted on virtual machines by placing firewall services within the virtual network architecture.
5. Test and Development Environments
Deploy a virtual Sophos Firewall where organizations need a firewall instance inside a VMware-based test or development environment.
6. Infrastructure Consolidation
Organizations already operating VMware infrastructure can deploy firewall services within the same virtualization environment instead of introducing another physical appliance.
Who Should Buy Sophos Firewall Virtual for VMware?
Sophos Firewall Virtual for VMware is suited to organizations that want Sophos network security within a VMware-based infrastructure.
It can be considered by:
- Businesses operating VMware ESXi environments.
- Organizations running virtual data centers.
- IT teams consolidating infrastructure on VMware.
- Enterprises deploying virtualized applications and services.
- Managed service providers operating VMware-based environments.
- Organizations requiring a virtual firewall instead of a dedicated physical appliance.
- IT teams building VMware-based test, development, or isolated network environments.
The appropriate deployment depends on the organization’s network architecture, VMware infrastructure, required security features, licensing, and available compute resources.
Related Categories
Explore related Sophos products and deployment options:
- Sophos Firewall
- Sophos XGS Firewall
- Sophos Firewall Virtual
- Sophos Firewall for Hyper-V
- Sophos Firewall for KVM
- Sophos Firewall Cloud
- Sophos Firewall Accessories
- Sophos Firewall Licenses
Frequently Asked Questions
What is Sophos Firewall Virtual for VMware?
Sophos Firewall Virtual for VMware is a virtual appliance that allows Sophos Firewall to run within a VMware virtualized environment. Sophos supports deployment on VMware ESXi and provides a dedicated OVF-based installation process.
Can Sophos Firewall run on VMware ESXi?
Yes. Sophos documents VMware ESXi as a supported platform for Sophos Firewall virtual appliance deployments.
What are the minimum requirements for Sophos Firewall on VMware?
Current Sophos documentation specifies a minimum of 1 vCPU, 4 GB vRAM, 2 vNICs, 32 GB primary disk, and 80 GB report disk for the virtual firewall.
How is Sophos Firewall installed on VMware?
Sophos Firewall is deployed using a Sophos-provided OVF image. The package can be downloaded from the Sophos Firewall installers area and deployed through VMware vSphere Client using the Deploy OVF Template workflow.
Does Sophos Firewall for VMware require a license?
Yes. Sophos states that a base SFOS license is required for virtual firewalls, with additional features available through subscriptions or bundles.
Can I change the vCPU and vRAM?
Virtual resources can be configured according to the purchased license and deployment requirements. Sophos states that you must not exceed the maximum vCPU and vRAM specified by the license.
Does Sophos Firewall support VMXNET 3?
Yes. Sophos provides a VMware template using VMXNET 3. Sophos describes it as a VMware-specific network driver that is faster than E1000E, while recommending E1000E if VMXNET 3 causes an error during deployment.
Can Sophos Firewall Virtual be used with VMware Workstation?
Sophos’ current virtual appliance documentation lists VMware as a supported virtual firewall platform and references vSphere Client and VMware Workstation under VMware. Always check the current Sophos documentation for the exact supported platform and version before deployment.
Is VMware backup supported for Sophos Firewall?
Sophos states that firewall backups created using virtual platform vendor backup tools are not supported. Use Sophos’ documented firewall backup and restore procedures instead.
Can Sophos Firewall Virtual be used for high availability?
Sophos supports HA on virtual and software platforms subject to its HA requirements and licensing conditions. Virtual and software deployments must meet the applicable registration and licensing requirements.



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