Cisco S49EESK9-15101SG Ios Enterprise Services Ssh for Catalyst 4900

Overview
The Cisco IOS Enterprise Services SSH for Catalyst 4900 (part number S49EESK9-15101SG) is a software license that enables secure, encrypted remote access to Cisco Catalyst 4900 series switches. By integrating Secure Shell (SSH) capabilities directly into the IOS image, network administrators can manage devices over untrusted networks with confidence, protecting credentials and configuration data from eavesdropping and tampering.

Key Features

• Full SSH version 2 support for secure command line access
• Strong encryption algorithms including AES, 3DES and Blowfish
• Public key authentication for passwordless logins and automated scripts
• Integrated with Cisco IOS security policies and AAA frameworks
• Compatibility with existing Cisco management tools such as Cisco Prime and Cisco Secure Access Control Server

Technical Specifications

• Applicable to Cisco Catalyst 4900 series switches running IOS Release 12.2 or later
• License type: perpetual, feature based
• Software image size: approximately 2 MB
• Supported encryption strengths: up to 256 bit AES
• Requires Cisco Smart Licensing or traditional license activation
• Operates on standard Ethernet ports and can be managed via console, Telnet (if also enabled) or SSH

Applications
This SSH license is ideal for enterprises, data centers, and service providers that need to enforce secure remote management of their switching infrastructure. It is particularly useful in environments where compliance standards such as PCI-DSS, HIPAA, or ISO 27001 require encrypted administrative sessions. Network engineers can use the feature to automate configuration changes with scripts, integrate with network orchestration platforms, or provide secure access for third-party vendors without exposing clear-text passwords.

By adding Cisco IOS Enterprise Services SSH to a Catalyst 4900 switch, organizations gain a robust security layer that safeguards management traffic, reduces the risk of credential theft, and aligns with best practices for network operation and compliance.