Cisco CISCO1811/K9 8 Ports Services Router
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CISCO1811/K9 Cisco 8 Ports Services Router Refurbished

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Part Number#: CISCO1811/K9
List Price was: $823.08
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Short Description:
CISCO1811/K9 1811 8 Ports Dual Ethernet Integrated Services Router With Analog B/U | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Product Overview of the Integrated Services Router

The Cisco CISCO1811/K9 is a compact and versatile Integrated Services Router designed to cater to various networking needs. With its 8 ports, dual Ethernet connectivity, and support for analog backup, this router provides reliable connectivity and essential features for small to medium-sized businesses.

Understanding Integrated Services Routers (ISRs) and Their Role

Integrated Services Routers (ISRs) are multifunctional networking devices that combine routing, security, and other services into a single platform. These routers are crucial for establishing and managing networks, providing a wide range of features for efficient data transmission and security.

Features of Cisco CISCO1811/K9 1811 Integrated Services Router8 Ports

Equipped with 8 ports, offering flexibility in connecting various devices and establishing multiple connections within the network.

Dual Ethernet Connectivity

Supports dual Ethernet connectivity, allowing for redundant connections or the creation of separate network segments for enhanced security.

Analog Backup Support

Includes analog backup support, ensuring continuity in network operations even in the event of a primary connection failure.

Importance of Integrated Services Routers in Networking

Integrated Services Routers play a pivotal role in networking environments:


ISRs offer a wide range of features, allowing businesses to consolidate multiple networking functions into a single device.

Enhanced Security

These routers often come with built-in security features to safeguard networks against cyber threats and unauthorized access.


With support for various interfaces and expandable capabilities, ISRs can scale to accommodate growing network demands.

Benefits of Using Cisco CISCO1811/K9 1811 Integrated Services RouterFlexibility in Connectivity

The router's 8 ports provide flexibility in connecting devices, accommodating different network requirements.

Redundancy with Dual Ethernet

Dual Ethernet connectivity offers redundancy, ensuring network continuity and reducing the risk of connectivity issues.

Resilience with Analog Backup

Analog backup support ensures resilience by providing an alternative connection method in case of primary network failure.

Use Cases for Cisco CISCO1811/K9 1811 Integrated Services RouterSmall Office/Home Office (SOHO)

Ideal for small office or home office setups, providing essential networking features in a compact and cost-effective package.

Branch Offices

Suitable for branch offices needing reliable connectivity and basic networking capabilities.

Remote Locations

Deployed in remote locations where redundancy and backup support are crucial for uninterrupted operations.

More Features of this Item

The CISCO1811/K9 is a Cisco 1811 Integrated Services Router (ISR) that provides 8 ports of dual Ethernet connectivity. This router is designed for small to medium-sized businesses and enterprise branch offices. The router has a wide range of features, including support for wired and wireless connectivity, VPN functionality, and security features such as a firewall and intrusion prevention. It also supports Quality of Service (QoS) for voice and video traffic, which makes it suitable for IP telephony. This item is built to provide secure, high-performance, and reliable connectivity for businesses, it also supports different types of WAN interfaces like DSL, T1, and Cable, and also has 2 USB ports. The router is also equipped with an integrated security feature set, which includes a firewall and intrusion prevention system, to help protect networks from malicious attacks. Additionally, the model can be managed via a web-based interface or using a Cisco IOS command-line interface (CLI) for advanced configurations.

Extraordinary Performance

This item is a high-performance and reliable router that is designed to handle the demanding needs of small to medium-sized businesses and enterprise branch offices.

In terms of performance, the CISCO1811/K9 is capable of handling up to 100Mbps of throughput, which is more than enough to support the needs of most small to medium-sized businesses. It also supports advanced Quality of Service (QoS) features, which allow for the prioritization of different types of network traffic such as voice and video, ensuring that critical applications are delivered with minimal delay and interruption.

In terms of reliability, the model is built with several redundant features to ensure that the router stays up and running even if one of its components fails. For example, it supports dual Ethernet ports for connecting to other networks or devices, which can provide a backup connection in case the primary connection goes down.

In addition, the model is equipped with a hardware-accelerated VPN, which allows for secure and reliable remote access to the network, and it also has built-in security features such as a firewall and intrusion prevention to help protect the network from malicious attacks.

Compliant Standards

The CISCO1811/K9 is compliant with several industry standards, which ensures that it is compatible with other network devices and that it can be used in various types of networks. Some of the compliant standards are:

  • IEEE 802.3: This standard defines the physical and data link layers of Ethernet networks. This item is compliant with IEEE 802.3, which means that it can be used in Ethernet networks and that it is compatible with other devices that also comply with this standard.
  • IEEE 802.11a/b/g/n: This standard defines the wireless network protocols. The model is compliant with IEEE 802.11a/b/g/n, which means that it can be used to create wireless networks and that it is compatible with wireless devices that also comply with this standard.
  • IPv4 and IPv6: This standard defines internet protocol versions, this model is compliant with both IPv4 and IPv6, which means that it can be used in networks that use either version of the internet protocol and it is compatible with other devices that also comply with these standards.
  • VPN: This standard defines Virtual Private Network protocols, this model is compliant with various VPN protocols such as IP Security (IPsec), Point-to-Point Tunneling Protocol (PPTP), and Layer 2 Tunneling Protocol (L2TP), which means that it can be used to create VPN connections and it is compatible with other devices that also comply with these standards.
  • Security: This standard defines security protocols and this model is compliant with various security protocols such as Advanced Encryption Standard (AES), Secure Sockets Layer (SSL), and Transport Layer Security (TLS) which means that it can be used to secure networks and it is compatible with other devices that also comply with these standards.
Key Information about this Cisco CISCO1811/K9
  • Manufacturer: Cisco
  • Model Number or SKU# CISCO1811/K9
  • Product Series: 1800
  • Product Model: 1811
  • Product Name: 1811 Security Router
  • Product Type: Router
Interfaces/Ports of Cisco 8 Ports Router
  • Total Number of Ports: 11
  • USB: Yes
  • Management Port: Yes
  • Number of Network (RJ-45) Ports: 8
  • Number of Broadband (RJ-45) Ports: 2
Management and Protocols for Desktop Router
  • Security Features:
  • Cisco IOS Firewall, Including URL Filtering
  • Intrusion Prevention System (IPS)
  • AutoSecure
  • Site-to-Site VPN
  • Dynamic Multipoint VPN (DMVPN)
  • Cisco Easy VPN Remote and Server
  • Network Admission Control (NAC)
  • Integrated Hardware-Based Encryption
  • Encryption Support in Hardware: DES, 3DES, AES 128, AES 192, AES 256
  • IPSec Tunnels Supported: 50
Network and Communication of Rack-mountable Router
  • Network Technology: 10/100Base-TX
  • Ethernet Technology: Fast Ethernet
  • Form Factor: Desktop, Rack-mountable, Wall Mountable
  • Standard Memory: 256 MB
  • Maximum Memory: 384 MB
  • Memory Technology: DRAM
  • Flash Memory: 32 MB
  • Memory Card Supported Compact Flash
  • data transfer rate: 100 MBPS
Power Description
  • Input Voltage: 110 V AC
  • Input Voltage: 220 V AC
  • Power Source: Power Supply
  • AC 120/230 V ( 50/60 Hz )


  • Cisco IOS Advanced IP services, firewall protection
  • hardware encryption, VPN support, load balancing
  • VLAN support, Stateful Packet Inspection(SPI)
  • Intrusion Prevention System (IPS)
  • URL filtering, Low-latency queuing (LLQ)
  • Class-Based Weighted Fair Queuing (CBWFQ)
  • Weighted Fair Queuing (WFQ)
  • Weighted Random Early Detection (WRED)
  • wall mountable, Quality of Service (QoS), Committed Access Rate (CAR)
  • LinkFragmentation and Interleaving (LFI)

Compliant Standards

  • IEEE 802.1Q, IEEE 802.3af, IEEE 802.1x

In summary, the Cisco CISCO1811/K9 1811 Integrated Services Router, equipped with 8 ports, dual Ethernet connectivity, and analog backup support, stands as a versatile solution for networking needs in various environments. Its flexibility in connectivity, redundancy through dual Ethernet ports, and resilience with analog backup make it an essential asset for small to medium-sized businesses, branch offices, and remote locations. Cisco's commitment to providing multifunctional and reliable networking solutions positions the CISCO1811/K9 as a dependable choice for organizations seeking robust networking capabilities in a compact form factor.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product CISCO1811/K9 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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Important notes:

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Individual product warranty mentioned on each item product description page/detail page.

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