1. はじめに
The Sophos XGS 118 (Gen2) is a next-generation network security appliance designed for mid-sized businesses. It offers robust firewall capabilities, advanced threat protection, and flexible connectivity options to secure your network infrastructure.
主な機能は次のとおりです。
- Xstream 保護: Provides zero-day defense, cloud sandboxing, email filtering, intrusion prevention, and advanced reporting.
- 高性能: Up to 15.5 Gbps firewall throughput with 9 x 2.5 GE copper ports and 1 SFP fiber port.
- Advanced Threat Inspection: Includes Deep Packet Inspection (DPI), TLS inspection, and Intrusion Prevention System (IPS) to block hidden threats.
- Integrated Security Heartbeat: Enables automatic threat isolation.
- 柔軟な接続性: Supports VPN and SD-WAN for reliable and secure connections.
- クラウドベースの管理: Managed through Sophos Central for unified policies and reporting.

図1: 前面 view of the Sophos XGS 118 (Gen2) appliance.
2. セットアップ
2.1 開梱と検査
Carefully unpack the Sophos XGS 118 appliance and its accessories. Verify that all components are present and undamaged. If any items are missing or damaged, contact your vendor immediately.
2.2 物理的な接続
Before powering on the device, connect all necessary cables. Refer to the rear panel diagram for port identification.

Figure 2: Rear panel of the Sophos XGS 118 (Gen2) appliance showing various ports.
- 力: Connect the power adapter to the DC IN 1 or DC IN 2 port and then to a power outlet.
- ネットワーク ポート: Connect your WAN (Internet) cable to the designated WAN port (e.g., 2/WAN). Connect your internal network devices (switches, computers) to the LAN ports (e.g., 1/LAN, 3/DMZ, 4, 5, 6, 7, 8).
- SFP ポート: For fiber optic connections, insert an SFP module into the F1 SFP port.
- USB ポート: USB 2.0 (front) and USB 3.0 (rear) ports are available for external storage or other compatible devices.
- Console Port (COM): Use the COM port for direct console access for initial configuration or troubleshooting.
2.3初期構成
After connecting the hardware, power on the appliance. The Sophos XGS 118 is typically managed via Sophos Central, a cloud-based platform. Follow the on-screen instructions or refer to the Sophos Central documentation for initial registration and configuration steps. This usually involves connecting a management computer to a LAN port and accessing the device's web interface or Sophos Central portal.
3. アプライアンスの操作
The Sophos XGS 118 runs on Sophos Firewall OS, providing a comprehensive suite of security features. All management and monitoring are performed through Sophos Central.
3.1 Sophos Central 管理
Sophos Central offers a unified console for managing your XGS 118 appliance. From Sophos Central, you can:
- Configure firewall rules and policies.
- Monitor network traffic and security events.
- Manage VPN connections and SD-WAN policies.
- Deploy and manage Xstream Protection features like sandboxing and IPS.
- Generate reports on network activity and security posture.

図3:例ample of Sophos Central dashboard for unified management.
3.2 Xstream Protection Features
The XGS 118, especially with Xstream Protection, provides advanced security capabilities:
- Deep Packet Inspection (DPI) & TLS Inspection: Scans encrypted traffic for hidden threats without compromising privacy.
- 侵入防止システム(IPS): ネットワークへの侵入や悪用を検出し、ブロックします。
- クラウド サンドボックス: 疑わしいものを分析 fileゼロデイ脅威を特定するために、安全で隔離された環境に設置します。
- Email Filtering: Protects against spam, phishing, and malware delivered via email.
- Automated Threat Response: Integrates with Sophos Security Heartbeat to automatically isolate compromised devices.

図4:以上view of Xstream Protection features for comprehensive security.
4. メンテナンス
定期的なメンテナンスにより、Sophos XGS 118 アプライアンスの最適なパフォーマンスとセキュリティが確保されます。
4.1ファームウェアアップデート
Keep your appliance's firmware up-to-date to benefit from the latest security patches, features, and performance improvements. Firmware updates are managed through Sophos Central. Ensure you have a valid support subscription to receive these updates.
4.2 監視と報告
Utilize Sophos Central's monitoring and reporting tools to regularly review network activity, security alerts, and system health. This proactive approach helps identify and address potential issues before they impact your network.
4.3 物理的環境
Ensure the appliance is placed in a well-ventilated area, free from dust and extreme temperatures. Maintain proper airflow around the device to prevent overheating.
5。 トラブルシューティング
This section provides basic troubleshooting steps for common issues. For more complex problems, refer to the Sophos knowledge base or contact technical support.
5.1 電源の問題
- 電源なし: Verify the power adapter is securely connected to both the appliance and a working power outlet. Check the power LED indicators on the device.
- 断続的な電力: Ensure the power source is stable. Consider using a surge protector or uninterruptible power supply (UPS).
5.2 ネットワーク接続の問題
- インターネットアクセスなし: Check WAN cable connection and status lights. Verify your ISP connection. Review firewall rules in Sophos Central to ensure traffic is allowed.
- Internal Network Problems: Confirm LAN cable connections. Check device IP configurations. Ensure Sophos Firewall OS is correctly configured for your internal network segments.
- パフォーマンスが遅い: Monitor network usage and appliance performance in Sophos Central. High CPU or memory usage might indicate a bottleneck or misconfiguration.
5.3 Accessing Sophos Central
- ログインできません: Verify your Sophos Central credentials. Ensure your management device has internet access.
- Appliance Not Reporting: Check the appliance's internet connectivity. Ensure the appliance is properly registered with Sophos Central.
6. 仕様
Detailed technical specifications for the Sophos XGS 118 (Gen2) Network Security Appliance.

Figure 5: Comprehensive technical specifications for the Sophos XGS 118 (Gen2) appliance.
| カテゴリ | 仕様 |
|---|---|
| モデル名 | XGS118 |
| ファイアウォールのスループット | 15.5Gbps |
| ポート | 9 x 2.5 GE Copper Ports, 1 x SFP Fiber Port |
| オペレーティング·システム | ソフォス ファイアウォール OS |
| 接続技術 | Ethernet, Fiber Optic, Wi-Fi (802.11ax for XGS 118w) |
| 寸法(高さ×幅×奥行き) | 44 x 320 x 212 ミリメートル |
| 重量(開梱) | 2.4 kg (5.29 ポンド) |
| 電源 | External auto-ranging AC-DC 100-240VAC |
| 動作温度 | 0°C ~ 40°C (32°F ~ 104°F) |
| 湿度 | 10% ~ 90%、結露なし |
| 特集 | Internet Security, Advanced Threat Protection |
For a complete list of specifications and performance metrics, refer to the official Sophos documentation or the detailed technical specifications image above.
7. 保証とサポート
7.1製品保証
The Sophos XGS 118 (Gen2) appliance typically comes with a standard hardware warranty. This specific product includes 3 Years Xstream Protection, which bundles advanced security features and support services.
7.2 サポートサービス
A valid support subscription is required to receive firmware upgrades and access to technical assistance. Enhanced support is included with all protection bundles, such as Xstream Protection. You can upgrade your support plan for additional services and faster response times.
Sophos Central provides comprehensive management and reporting capabilities, which are integral to your support experience. For detailed information on support tiers and services, please visit the official Sophos website or consult your sales representative.

図6:以上view of Sophos licensing and support options.
7.3 公式製品ビデオ
Video 1: An official video providing an overview of the Sophos XGS Series 2nd Gen Desktop Appliances. This video highlights key features and benefits of the product line.





