Description
Sophos sg115 — Next-Generation Firewall
The Sophos SG 115 Security Appliance represents a versatile, high-performance firewall solution engineered specifically for small businesses and branch offices. Operating on purpose-built hardware powered by multi-core Intel processors, the SG 115 provides optimal throughput across stateful packet inspection, VPN routing, and deep packet security processing.
Hardware & Connectivity
Equipped with 4 fixed Gigabit Ethernet copper ports, the SG 115 provides flexible interface assignment for LAN, WAN, and DMZ routing. Unlike basic desktop appliances, the unit contains an integrated hard disk drive, allowing local storage of log data, system reports, and email quarantine files directly on the box.
Software & Management
Running the robust Sophos UTM architecture, the appliance offers a single consolidated dashboard for managing network firewall rules, intrusion prevention, web content filtering, and remote access. It provides an ideal balance of enterprise-grade security features and straightforward administrative overhead.
Selection Guide
For Small Offices (Up to 10-25 Users)
Select the standard SG 115 desktop model for wired infrastructure environments requiring reliable full-UTM protection.
For All-in-One Wireless Requirements
Choose the SG 115w model when integrated dual-band 802.11a/b/g/n Wi-Fi is needed to eliminate extra access point hardware.
For Server Closet Mounting
Add an official or purpose-built 19-inch rackmount kit to transition the desktop form factor cleanly into standard equipment racks.
Always Verify
Cross-check user count requirements, internet bandwidth speed limits, and required UTM security modules prior to final deployment.
Installation Notes
Installation begins by positioning the appliance on a flat surface or installing it into a rack bracket. Connect the WAN interface to your internet modem and attach LAN switch connections to the remaining GE ports. Connect the external 12V DC power supply and allow the unit to boot. Initial configuration is performed by connecting a management PC to the default web admin interface over HTTPS or using the dedicated console port.
Best Practices
Place desktop units in well-ventilated areas to prevent thermal throttling. When mounting in a server rack, utilize model-specific rackmount kits to ensure adequate airflow and clean port orientation. Perform regular configuration backups via the Sophos UTM WebAdmin. Use the integrated HDD for detailed logging and schedule automated summary reports for security auditing.
Benefits for IT Teams
- Simplified deployment and configuration using intuitive web administration
- On-board log storage eliminating the immediate need for secondary syslog servers
- High-reliability hardware engineered to minimize remote site maintenance visits
- Unified policy enforcement across firewall, web security, and remote VPN users
- Straightforward upgrade path to high-availability clustering when uptime demands grow
Main Accessory Categories
1. Rackmount Solutions
Purpose-built 19-inch rackmount kits for the SG 115 desktop firewall. Features include fixed power mounting, front-facing port redirection (such as the Rackmount.IT or official Sophos kit Series), and clean rack integration for server closets.
2. Power Supplies & Cables
Replacement external power supply adapters (12V DC), auto-ranging power cables, and console cabling (RJ45-to-DB9/USB serial) designed to keep the SG 115 powered and manageable.
3. Wireless Components (SG 115w)
External dual-band antennas and mounting extensions dedicated to the wireless-enabled variant (SG 115w) to ensure optimal 802.11a/b/g/n signal coverage.
4. Software Subscriptions & Licenses
Modules and licenses extending protection capabilities across Network Protection, Web Protection, Email Protection, Wireless Protection, and Web Server Protection.
Why Use Official or Purpose-Built Hardware
- Guaranteed performance optimization tuned for Sophos UTM software
- Integrated hard drive for full local logging and reporting without external syslog requirements
- Custom-fit rackmount conversion kits that preserve proper ventilation and cable access
- Direct firmware recognition and system stability for seamless operational longevity
- Clearer support path and simplified RMA coverage directly through Sophos authorized channels
Six Main Benefits
High Throughput
Delivers up to 2.3 Gbps firewall throughput using optimized multi-core Intel hardware.
Benefit: Maintains high-speed connectivity even under heavy network usage.
All-in-One Security
Combines stateful firewall, IPS, VPN, web filtering, and antivirus protection into one desktop unit.
Benefit: Reduces management complexity and hardware footprint.
On-Board Reporting
Features an integrated hard disk drive (HDD) built directly into the appliance hardware.
Benefit: Enables rich, real-time local reporting and log quarantine without external servers.
Flexible Mounting
Operates quietly on a desk or seamlessly mounts into a standard 19-inch rack.
Benefit: Fits cleanly into standard office environments or rack-based branch deployments.
Secure Remote Access
Includes high-speed IPSec and SSL VPN engine capabilities.
Benefit: Enables reliable connection options for remote employees and branch sites.
Clustering Capabilities
Supports Active/Passive and Active/Active high availability (HA) clustering.
Benefit: Protects business operations with effortless failover redundancy.
Typical Use Cases
1. Small Business Perimeter Defense
Deploy as the main gateway security firewall for small office networks requiring comprehensive UTM protection.
2. Branch Office Connectivity
Establish secure IPsec or SSL VPN tunnels back to corporate data centers while securing local internet traffic.
3. Retail & Point-of-Sale (POS) Securing
Utilize isolated segment LAN ports to segregate POS traffic, staff networks, and guest Wi-Fi safely.
4. High-Availability Deployments
Pair two SG 115 appliances in a high-availability cluster for redundant failover in mission-critical office locations.
5. Wireless Branch Deployments
Deploy the SG 115w model to provide unified firewall protection and desktop dual-band Wi-Fi from a single unit.
6. Standardized MSP Deployments
Adopt a consistent desktop security appliance across multiple client locations for simplified management and maintenance.
Who Should Buy Sophos SG 115?
Any small business, distributed enterprise branch, MSP, or organization seeking a reliable desktop firewall appliance that offers complete threat protection, robust VPN connectivity, and on-board reporting.
21. Frequently Asked Questions
What is the Sophos SG 115?
The Sophos SG 115 is a compact desktop Unified Threat Management (UTM) firewall appliance designed to secure small business and branch office networks.
What is the difference between SG 115 and SG 115w?
The SG 115 is a standard wired appliance, whereas the SG 115w includes integrated 802.11a/b/g/n Wi-Fi with external antennas for wireless connectivity.
How many network ports does the SG 115 have?
The appliance features 4 fixed Gigabit Ethernet (10/100/1000 Mbps) copper RJ45 ports.
Does the SG 115 have built-in storage?
Yes, the SG 115 includes an integrated hard disk drive (HDD) used for local logging, quarantine storage, and on-box reporting.
Can I mount the SG 115 in a standard 19-inch rack?
Yes, custom 19-inch rackmount kits are available to securely mount the desktop appliance into a standard rack enclosure.
What software operating system runs on the SG 115?
The SG 115 runs the dedicated Sophos UTM software operating system.
