Cisco C881-K9 4 Ports Router 880 Series Integrated Services Refurbished

Cisco C881-K9 is a part of the 880 Series of Integrated Services Security Routers. This 4 ports router is designed to provide reliable and secure network connectivity for small to medium-sized businesses. The Cisco C881-K9 880 Series Integrated Services Security Router is a member of the Cisco 880 Series, designed to provide reliable network connectivity and robust security features for small to medium-sized businesses, remote offices, and branch locations. This router is part of Cisco's effort to offer a comprehensive solution that combines fast Ethernet connectivity with integrated services security.

• 5X (RJ-45) Ports: In addition to the 4 Fast Ethernet ports, the router features 5 RJ-45 ports. These ports are a common type of connector used in Ethernet networks, making it easy to integrate the router into your existing network infrastructure.
• 10/100Base-TX: The Cisco C881-K9 supports 10/100Base-TX, which means it is compatible with both 10 Mbps and 100 Mbps network speeds. This versatility allows you to connect to a wide range of devices, from older, slower equipment to modern high-speed devices.
• 128 MB Standard Memory: This router is equipped with 128 MB of standard memory. Sufficient memory is crucial for efficient data processing and ensuring the smooth operation of your network.
• 4 Ports Fast Ethernet: The Cisco C881-K9 comes equipped with 4 Fast Ethernet ports. Fast Ethernet is an industry-standard network technology that provides a data transfer rate of 100 Mbps, making it suitable for various network applications. These ports allow you to connect multiple devices to the router with high-speed data transmission.

One of the standout features of the Cisco C881-K9 880 Series Router is its integrated security services. Security is of paramount importance in today's digital landscape, and Cisco has taken steps to ensure that this router can help protect your network from threats and vulnerabilities.

• Firewall Protection: The router comes with built-in firewall capabilities. A firewall acts as a barrier between your network and potential threats from the internet. It monitors and controls incoming and outgoing network traffic based on an organization's previously established security policies.
• Virtual Private Network (VPN) Support: The Cisco C881-K9 router supports VPNs. VPNs are essential for secure remote access to your network. They create encrypted tunnels, ensuring that data transmitted over the internet is secure and private.
• Content Filtering: Content filtering is another security feature provided by this router. It allows you to control what websites and content your network users can access. This feature is particularly useful in organizations where internet usage needs to be regulated.
• Intrusion Detection and Prevention: The router is equipped with intrusion detection and prevention capabilities. This means it can identify and respond to suspicious activities on your network, preventing potential security breaches.

The performance and reliability of a router are critical factors for any organization. The Cisco C881-K9 is designed to deliver both.

• High-Speed Data Transfer: With its Fast Ethernet ports, the router can provide fast data transfer rates, making it suitable for data-intensive applications and services.
• Quality of Service (QoS): Quality of Service is a technology that allows you to prioritize network traffic. This means you can ensure that critical applications and services receive the necessary bandwidth and network resources, resulting in a better user experience.
• Enhanced Network Uptime: The Cisco C881-K9 router is designed to maximize network uptime. It includes features like failover and load balancing, ensuring that your network remains operational even in the face of hardware failures or high network traffic.
• Reliability and Durability: Cisco is known for its high-quality networking equipment, and the 880 Series is no exception. The router is built to last, making it a reliable choice for your network infrastructure.

Managing a router can be a complex task, but Cisco has taken steps to make it as user-friendly as possible.

• Web-Based Management Interface: The router comes with a web-based management interface that allows you to configure and manage the device through a user-friendly graphical interface. This simplifies the setup and maintenance process.
• Remote Management: You can manage the Cisco C881-K9 router remotely, which is particularly useful for organizations with multiple locations or remote offices.
• Automatic Updates: The router supports automatic firmware updates, ensuring that it stays up to date with the latest security patches and features.
• Network Monitoring and Reporting: Cisco provides tools for network monitoring and reporting, allowing you to keep an eye on your network's performance and troubleshoot any issues that may arise.

The Cisco C881-K9 router is designed to work seamlessly with various network components and technologies.

• Compatibility with Cisco Devices: It is fully compatible with other Cisco networking equipment, ensuring that you can build a cohesive and integrated network infrastructure.
• Interoperability with Third-Party Equipment: While it works well with Cisco devices, it is also designed to be interoperable with a wide range of third-party network equipment, ensuring flexibility in your network design.

The Cisco 880 series Ethernet Security Routers, including the C881-K9 model, are designed to provide secure and reliable connectivity for small to medium-sized businesses. These routers come with a variety of security features that can help protect your network from cyber threats, including:

• Firewall protection: The C881-K9 router comes with a built-in firewall that can block unauthorized access to your network from the internet. This firewall uses stateful packet inspection technology to analyze incoming and outgoing traffic and identify potential security threats.
• VPN support: The router can establish secure virtual private network (VPN) connections to remote users or other offices, which allows employees to work from home or while traveling while ensuring that their connection to the company's network is secure and encrypted.
• Intrusion prevention: The C881-K9 router includes an intrusion prevention system (IPS) that can detect and block malicious traffic before it reaches your network. The IPS uses advanced algorithms to identify potential threats and prevent them from causing harm to your network.
• Content filtering: The router can be configured to filter out unwanted or harmful content from websites, emails, or other types of traffic. This helps to prevent employees from accessing malicious websites or downloading malware-infected files.
• Access control: The router can be used to set up user accounts and control access to different parts of your network. This ensures that only authorized users can access sensitive information and helps prevent unauthorized access or data breaches.

The Cisco 881-K9 is a small business router designed for security and connectivity. Here are some of its basic security features:

• Firewall: The Cisco 881-K9 comes with a stateful inspection firewall that provides secure access to the internet and protects the network against unauthorized access.
• VPN: The router supports VPN technologies such as IPsec and SSL VPN. This allows remote workers to securely connect to the company network.
• Intrusion Prevention System (IPS): The Cisco 881-K9 includes an IPS that detects and prevents network attacks. The IPS also provides real-time alerts to network administrators when an attack occurs.
• Network Address Translation (NAT): The router supports NAT, which hides the private IP addresses of the internal network from the public internet. This helps to protect the internal network from outside threats.
• Access Control Lists (ACLs): The Cisco 881-K9 allows network administrators to configure ACLs to control access to the network. ACLs can be used to block traffic from certain IP addresses or to restrict access to specific ports.
• Secure Sockets Layer (SSL): The router supports SSL encryption, which provides secure communication between web servers and clients. This ensures that sensitive information, such as passwords and credit card numbers, is protected from eavesdropping and interception.
• Port Security: The Cisco 881-K9 includes port security features that allow network administrators to control access to the network by limiting the number of devices that can connect to a single port.
• Password Protection: The router supports strong password protection for user accounts. This helps to prevent unauthorized access to the router and the network.
• VLANs: The Cisco 881-K9 supports Virtual Local Area Networks (VLANs) which allows network administrators to separate traffic on the network into different virtual networks. This can improve security and help to prevent unauthorized access to sensitive data.

The Cisco 880 Fast Ethernet Security Router is a router designed for small businesses and remote offices. It provides a range of security features such as VPN support, firewall protection, and intrusion prevention. In addition to security features, the router also supports various interference mitigation techniques to improve the reliability and performance of the network.

Here are some of the interference mitigation techniques supported by the C881-K9 Cisco 880 Fast Ethernet Security Router:

• Quality of Service (QoS): QoS is a technique that prioritizes certain types of traffic over others. This ensures that critical applications such as voice and video are given priority over less important traffic, which can help reduce interference and improve network performance.
• Channel selection: The C881-K9 router supports the use of multiple channels to reduce interference caused by other nearby wireless networks. The router can automatically select the best channel to use or allow manual selection.
• Power control: The router can adjust the power level of its wireless signal to reduce interference with other wireless devices. This is especially useful in areas where there are many wireless networks or other devices that use the same frequency.
• Interference detection and avoidance: The router can detect interference caused by other wireless devices and adjust its settings accordingly to avoid interference. This can help improve network performance and reliability.
• Beamforming: Beamforming is a technique that focuses the wireless signal in a specific direction, which can help reduce interference and improve signal strength. The C881-K9 router supports beamforming, which can help improve the reliability and performance of the network.

• Manufacturer: Cisco
• Part Number or SKU# C881-K9
• Product Series: 880
• Product Type: Integrated Router

• Total Number of Ports: 4
• Form Factor: Desktop
• USB: Yes
• Powerline: No
• Management Port: Yes
• Token Ring Port: No
• Serial V.35 Interface: No
• Number of Network (RJ-45) Ports: 4
• Number of Broadband (RJ-45) Ports: 1

• Installed Size: 256 MB
• Max Supported Size: 256 MB

• Connectivity Technology: Wired
• Data Link Protocol: Ethernet, Fast Ethernet
• Remote Management Protocol: CLI, HTTP, HTTPS, SNMP 3, SSH, Telnet
• Compliant Standards: IEEE 802.1D, IEEE 802.1Q
• Status Indicators: Port status, Power
• Network Transport Protocol: DHCP, L2TP
• Routing Protocol: GRE, HSRP, Policy-based routing (PBR), RIP-1, RIP-2, VRRP
• Integrated Switch: 4-port switch
• WAN Ports Qty: 1

• Security Features:
• IPsec
• SIP
• IOS Firewall
• Content Filtering
• IPS
• NAT-PT
• L2TP
• NAT
• ACLs
• DES
• 3DES
• 128/192/256-bit AES
• RADIUS
• TACACS+

• Min Operating Temperature: 32 °F
• Max Operating Temperature: 104 °F
• Humidity Range Operating: 10 - 85% (non-condensing)

• Standard Memory: 128 MB
• Maximum Memory: 256 MB
• Memory Technology: DRAM

• Input Voltage: 110 V AC
• Input Voltage: 220 V AC
• Power Source: Power Supply

• CISPR 22
• CISPR 24
• EN 300386
• EN 60555-2
• EN 61000-3-2
• EN 61000-3-3
• EN 61000-6-1
• EN50082-1
• EN55022 Class B
• EN55024
• FCC CFR47 Part 15
• FCC CFR47 Part 15 B
• ICES-003
• KN22
• VCCI V-3

• RADIUS
• TACACS+

• 128-bit AES
• 192-bit AES
• 256-bit AES
• DES
• PKI
• Triple DES

In summary, the Cisco C881-K9 880 Series Integrated Services Security Router is a robust and reliable networking solution with a focus on security. Its fast Ethernet ports, integrated security features, and ease of management make it a compelling choice for small to medium-sized businesses, branch offices, and various other industries.

While the initial investment may be higher compared to some alternatives, the long-term value in terms of security, performance, and reliability can make it a cost-effective choice. Cisco's reputation for high-quality networking equipment further solidifies the trustworthiness of the Cisco C881-K9 router.