C881SRST-K9 Cisco 881 SRST Ethernet Security Router

Product Overview of Cisco C881SRST-K9 Router

The Cisco C881SRST-K9 881 is a robust SRST Ethernet security router, designed to deliver reliable connectivity, enhanced security, and flexible networking capabilities. Ideal for small to medium-sized businesses, branch offices, and remote locations, this router ensures uninterrupted network performance with advanced security protocols and simplified management.

General Specifications

• Manufacturer: Cisco
• Model Number: C881SRST-K9 881
• Device Type: Ethernet Security Router
• Deployment: Branch office, remote site, or small enterprise network

Local Area Network (LAN) Capabilities

• 4-port 10/100 Mbps Fast Ethernet managed switch for high-speed wired connections
• Supports simultaneous multiple device connections with seamless traffic management

Wide Area Network (WAN) Interface

• 1 x 10/100 Mbps Fast Ethernet WAN port for external network access
• Facilitates reliable connection to ISPs or central offices

Peripheral and Console Ports

• 1 x USB 1.1 port for security tokens, booting, or uploading configuration files
• 1 x RJ-45 console/auxiliary port for device management and troubleshooting

Form Factor and Design

• Fanless desktop-style chassis for silent operation in office environments
• Compact design enables easy placement on desks or shelves

Memory Specifications

• Standard 256 MB DRAM, upgradeable to 768 MB for enhanced performance
• 128 MB Flash memory for storing firmware and configuration files

Throughput and Speed

• Designed for up to 15 Mbps throughput, supporting branch office operations
• Efficient traffic management ensures minimal network latency

VPN Support

• Supports up to 20 IPsec VPN tunnels
• Hardware-accelerated 3DES and AES encryption for secure remote connections

Software Capabilities and Security Features

Cisco IOS Operating System

• Runs Advanced Security feature set by default
• Enables configuration of routing, VPNs, and firewall policies

Integrated Security Stack

• Built-in firewall for network protection against unauthorized access
• Intrusion Prevention System (IPS) for threat detection and mitigation
• Content filtering to manage and restrict access to inappropriate or risky websites

Routing Protocols

• Supports dynamic routing protocols including BGP, EIGRP, OSPF, RIP-1, and RIP-2
• Allows static routing for fixed-path traffic management
• Flexible routing options suitable for complex network topologies

Cisco C881SRST-K9 881 SRST Ethernet Security Router Overview

The Cisco C881SRST-K9 881 SRST Ethernet Security Router is a high-performance network solution designed for small to medium-sized enterprises that require secure, reliable, and efficient connectivity. As a part of Cisco's renowned 800 Series, this router ensures resilient routing, integrated security, and seamless voice and data operations, making it ideal for branch office deployments and remote locations.

Integrated Security and SRST Capabilities

This router is equipped with Cisco's SRST (Survivable Remote Site Telephony) feature, which allows voice traffic to remain functional even when connectivity to the central call manager is lost. This feature is crucial for businesses that depend on uninterrupted communication. The integrated firewall, VPN capabilities, and intrusion prevention systems provide multiple layers of protection, ensuring that both data and voice communications are safeguarded against unauthorized access and cyber threats.

Firewall and VPN Features

The Cisco C881SRST-K9 integrates advanced firewall functionality to protect branch networks from malicious attacks while allowing legitimate traffic to flow efficiently. Its support for IPsec and SSL VPN ensures secure remote access for employees, enabling a seamless connection to the corporate network without compromising security. The router's ability to handle multiple simultaneous VPN tunnels makes it suitable for distributed offices or remote workforce setups.

Intrusion Prevention

Equipped with Cisco IOS Security features, the router offers robust intrusion prevention capabilities. It monitors incoming and outgoing traffic for unusual patterns or potential threats and can automatically take corrective actions. This makes the C881SRST-K9 particularly valuable for organizations that require constant vigilance against evolving cyber threats, ensuring network integrity and operational continuity.

Performance and Reliability

The 881 SRST router is designed for dependable network performance, featuring dual Ethernet WAN interfaces that enable load balancing and failover, ensuring continuous connectivity even during hardware or line failures. Its routing performance supports multiple protocols, including OSPF, EIGRP, and BGP, making it flexible for diverse network environments. With high throughput and optimized packet processing, it meets the demands of modern enterprise applications and VoIP traffic without compromise.

Dual WAN and Redundancy

Dual WAN ports allow businesses to implement primary and backup connections, increasing uptime and network reliability. The automatic failover mechanism ensures that, in the event of a primary line failure, the secondary connection activates immediately, maintaining business operations without interruption. This redundancy is essential for mission-critical operations where downtime can result in significant productivity or financial loss.

High-Availability Features

The router includes built-in high-availability capabilities that reduce network downtime. By supporting features such as Stateful Failover, dynamic routing protocols, and Cisco's redundant power options, the C881SRST-K9 ensures consistent performance across distributed network environments. This reliability is essential for companies with branch offices or remote sites that need uninterrupted access to central network resources.

Deployment and Management

Deployment of the Cisco 881 SRST router is streamlined through its compact form factor and versatile connectivity options. Administrators can configure and manage the device using Cisco IOS CLI, web-based GUI, or centralized management platforms such as Cisco Prime. This flexibility simplifies deployment across multiple locations and allows IT teams to maintain efficient control over network operations.

Voice and Data Integration

The router excels in environments where voice and data must coexist efficiently. Its SRST functionality ensures that VoIP phones continue to operate during WAN outages, preventing communication breakdowns. Quality of Service (QoS) features allow prioritization of voice traffic over data, maintaining call clarity and minimizing latency. This integrated approach supports unified communications and improves overall operational efficiency.

Quality of Service (QoS) Capabilities

The router includes sophisticated QoS features to manage bandwidth allocation and traffic prioritization. Critical applications such as VoIP and video conferencing are prioritized to maintain consistent performance, while less critical data traffic is managed appropriately. This ensures that end-user experience is optimized even during peak network usage periods.

SRST for Branch Office Resiliency

SRST allows the branch office to maintain local call control if the connection to the central call manager is disrupted. This feature is particularly valuable for organizations with multiple remote sites, ensuring uninterrupted telephony services. Coupled with its integrated routing and security capabilities, SRST enhances both operational continuity and customer communication reliability.

Scalability and Flexibility

The Cisco 881 SRST router is designed to scale alongside business growth. With multiple Ethernet ports, support for a range of VPNs, and compatibility with various WAN technologies, the device adapts to expanding network demands. Its modular design allows for flexible deployment across diverse environments, whether in a single branch office or a distributed enterprise network.

Branch Office Expansion

As businesses expand their branch networks, the Cisco C881SRST-K9 provides the connectivity and security needed for new locations. Its ability to support multiple VPN tunnels and WAN links enables seamless integration of additional sites without disrupting existing infrastructure. This ensures consistent performance and secure communication across the enterprise network.

Flexible WAN Connectivity

The router accommodates various WAN technologies, including DSL, cable, and 3G/4G LTE connections. This flexibility allows businesses to choose the most appropriate connectivity option based on location, availability, and budget. Combined with dual WAN support, it ensures maximum uptime and continuous business operations regardless of the network environment.

Technical Specifications

The Cisco C881SRST-K9 comes equipped with a powerful processor, ample memory, and advanced networking capabilities to handle demanding branch office environments. It features multiple 10/100/1000 Ethernet ports, integrated VPN and firewall capabilities, and extensive protocol support for routing and network management. These specifications make it a versatile and reliable choice for organizations seeking a secure, high-performance router for remote or branch operations.

Hardware and Interfaces

The router includes high-speed Ethernet ports, serial interfaces, and optional USB connections for network expansion. Its compact chassis supports easy rack or desktop deployment, making it suitable for a variety of physical network environments. The device's durable construction ensures long-term operational reliability in enterprise settings.

Software and Firmware Support

Cisco IOS Software provides advanced routing, security, and voice capabilities, allowing the router to support a wide range of enterprise applications. Regular firmware updates ensure that the device stays current with evolving network standards and security requirements, maintaining optimal performance and protection.

Small and Medium Enterprise Networks

For small to medium enterprises, the Cisco C881SRST-K9 offers enterprise-grade networking features without the complexity of larger systems. Integrated security, traffic management, and QoS features allow these organizations to deploy a robust network infrastructure that supports business growth and technological evolution.