Cisco ASA5525-FTD-K9 8 Ports Security Appliance
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ASA5525-FTD-K9 Cisco Firepower Security Appliance Refurbished

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Part Number#: ASA5525-FTD-K9
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Short Description:
ASA5525-FTD-K9 ASA 5525-X with Firepower Threat Defense, 8GE, Alternating Current (AC) 8 Ports Rack-mountable Security appliance | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Optimizing Performance

The Cisco Firepower Security appliance ASA5525-FTD-K9 is a powerful network security device that provides advanced security features such as firewall, VPN, intrusion prevention, and malware protection to protect your network against various threats. To ensure that the appliance performs optimally, here are some best practices that you can follow:

  • Regularly update the software: Cisco regularly releases software updates that address security vulnerabilities and improve performance. It is important to keep the ASA5525-FTD-K9's software up-to-date with the latest patches and updates to ensure that it is running smoothly.
  • Properly configure the appliance: The ASA5525-FTD-K9 has many configurable options that allow you to customize its behavior. It is important to ensure that the appliance is configured properly based on your organization's security policies and requirements.
  • Monitor performance metrics: The ASA5525-FTD-K9 provides various performance metrics such as CPU usage, memory utilization, and bandwidth usage. Regularly monitoring these metrics can help you identify potential performance bottlenecks and optimize the appliance's performance.
  • Use the right licensing model: The ASA5525-FTD-K9 has different licensing models that provide different levels of functionality. It is important to choose the licensing model that best fits your organization's needs to ensure that you are not paying for unnecessary features.
  • Optimize traffic flow: The ASA5525-FTD-K9 can process a large amount of traffic, but it is important to optimize traffic flow to ensure that it can handle the traffic volume. This can include configuring routing protocols, load balancing, and QoS settings.
  • Optimize IPS rules: The Intrusion Prevention System (IPS) on the ASA5525-FTD-K9 has many configurable options that allow you to customize its behavior. It is important to optimize the IPS rules to ensure that it is effectively detecting and blocking malicious traffic without impacting legitimate traffic.
  • Implement access control policies: Access control policies allow you to control what traffic is allowed into and out of your network. Properly implementing access control policies can help reduce the amount of traffic that the ASA5525-FTD-K9 needs to process, improving its performance.
  • Monitor traffic patterns: Regularly monitoring traffic patterns can help you identify potential performance bottlenecks and optimize the appliance's performance. This can include analyzing traffic flow, identifying high-bandwidth applications, and identifying devices that are consuming excessive resources.

High Availability and Failover Configurations

The ASA5525-FTD-K9 Cisco Firepower Security appliance supports high availability (HA) and failover configurations to ensure that network traffic is not disrupted in the event of hardware or software failure. Here are some common HA and failover configurations for the ASA5525-FTD-K9:

  • Active/Standby Failover: This configuration involves two ASA5525-FTD-K9 devices in which one device serves as the active unit, and the other as the standby unit. In the event of a failure on the active unit, the standby unit takes over and becomes the active unit, ensuring uninterrupted network connectivity.
  • Active/Active Failover: This configuration involves two ASA5525-FTD-K9 devices in which both devices act as active units and share the network traffic load. In the event of a failure on one device, the other device takes over the failed unit's traffic load, ensuring uninterrupted network connectivity.
  • Clustered Failover: This configuration involves multiple ASA5525-FTD-K9 devices in which they are clustered together to form a single logical device. The clustered devices share the network traffic load, and in the event of a failure on one device, the other devices take over the failed device's traffic load, ensuring uninterrupted network connectivity.
  • Stateful Failover: This configuration involves the replication of connection and state information between two ASA5525-FTD-K9 devices. In the event of a failure on one device, the other device takes over the failed device's traffic load, and continues to process traffic with the same connection and state information, ensuring uninterrupted network connectivity.

To configure HA and failover on the ASA5525-FTD-K9, you will need to configure interfaces, routing, failover groups, and monitor interfaces. You will also need to configure the devices to synchronize configurations and state information. The configuration process may vary depending on the specific HA or failover configuration you choose to implement, so it is important to consult the Cisco documentation and seek assistance from a qualified network engineer if needed.

Key Features and Benefits

The ASA5525-FTD-K9 Cisco Firepower Security appliance is a next-generation security appliance designed to provide advanced security features such as firewall, intrusion prevention, and malware protection, to protect your network against various threats. Here are some of its key features and benefits:

  • Unified Threat Management (UTM) capabilities: The ASA5525-FTD-K9 appliance combines multiple security features into a single platform, including firewall, VPN, IPS, URL filtering, and malware protection.
  • Advanced Firewall capabilities: The ASA5525-FTD-K9 provides advanced firewall capabilities, including stateful firewall, NAT, and network segmentation, to protect your network from unauthorized access.
  • Intrusion Prevention System (IPS): The ASA5525-FTD-K9 provides an advanced IPS system that can detect and block various types of network attacks, including network and application-layer attacks.
  • VPN Connectivity: The ASA5525-FTD-K9 supports site-to-site VPN and remote access VPN, providing secure connectivity between multiple sites and remote users.
  • URL Filtering: The ASA5525-FTD-K9 provides URL filtering capabilities, allowing you to block access to certain websites and applications based on predefined policies.
  • Malware Protection: The ASA5525-FTD-K9 provides malware protection by inspecting network traffic and blocking any malicious traffic that may enter your network.
  • Application Control: The ASA5525-FTD-K9 provides application control capabilities that allow you to monitor and control the usage of specific applications within your network.
  • Network Visibility and Threat Detection: The ASA5525-FTD-K9 provides network visibility and threat detection capabilities, allowing you to monitor your network traffic and identify any potential security threats.
  • Easy to Manage: The ASA5525-FTD-K9 is easy to manage with its web-based user interface and integrated management system, making it simple to configure, manage and monitor your security policies.
  • Scalability: The ASA5525-FTD-K9 is scalable, and can be easily integrated with other Cisco security appliances, allowing you to expand your network security capabilities as your business grows.

Main Information about this Cisco ASA5525-FTD-K9

  • Manufacturer: Cisco
  • Part Number or SKU # ASA5525-FTD-K9
  • Product Line: ASA
  • Product Name: ASA 5525-X with Firepower Threat Defense
  • Product Type: Security appliance

Technical Information of Firepower appliance

  • Total Number of Ports: 8
  • Connectivity Technology: Wired
  • Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
  • Throughput: 600 Mbps

Performance of 8 Ports Security appliance

  • Firewall throughput: 2 Gbps ¦ VPN throughput: 300 Mbps ¦ Connection rate: 20000 connections per second ¦ Firewall + intrusion prevention
  • Capacity IPSec VPN: 750 ¦ SSL VPN peers: 2 ¦ Concurrent sessions: 500000 ¦ Virtual interfaces (VLANs): 200 ¦ Security contexts: 2

Expansion / Connectivity for Firepower Threat Defense

  • Expansion Slots: 1 (total) / 1 (free) x expansion slot
  • Interfaces 8 x 1000Base-T - RJ-45 ¦ 1 x 1000Base-T (management) - RJ-45 ¦ 1 x management - RJ-45 ¦ 2 x USB 2.0 - Type A

Processor / Memory / Storage

  • RAM: 8 GB
  • Flash Memory: 8 GB


  • Power Device: Internal power supply
  • Installed Qty: 1
  • Max Supported Qty: 1
  • Voltage Required: AC 120/230 V (50/60 Hz)
  • Power: Provided 400 Watt
  • Software / System Requirements:
  • Software Included Drivers & Utilities, Cisco Threat Defense 6.0.1

Dimensions & Weight

  • Height: 1.7 Inch
  • Width: 16.9 Inch
  • Depth: 15.6 Inch
  • Weight: 14.99 LBS


  • Compliant Standards VCCI, C-Tick, EN 61000-3-2, ICES-003, EN 61000-3-3, EN55024, EN55022 Class A, CISPR 22, UL 60950-1, IEC 60950-1, EN 60950-1, FCC Part 15 B Class A, CAN/CSA C22.2 No. 60950-1-07, ANSI C63.4-2009

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.

A proper network security appliance is able to provide you with threat defence, new malware protection, insightful reporting, application control, and more in one solution.

With organizations getting more and more reliant on software for automation and streamlining operations, users are getting strong emotional attachments to their vendors and applications. Advanced-level appliances are thus needed to maintain the relationship between you, as an end-user, and the vendors.

Security appliances can be defined as any server appliance form that is created for the protection of your computer networks from undesired traffic. There are various types of security appliances in the market. Some of them include:

  1. Preventative devices: These scan networks and recognize probable security issues like vulnerability assessment appliances and penetration testing.
  2. Passive devices: Sense and report undesired traffic. An example is intrusion detection appliances.
  3. Unified Threat Management (UTM): Appliances bring together features making one system like content filtering, some firewalls, and web caching.
  4. Active devices: These block undesired traffic. Examples of such are anti-virus scanning devices, content filtering devices, and firewalls.

Here at AllHDD, you can find the best network security appliance by choosing from our wide variety of options, we have different products with 1 port, 2 ports, 3 ports, and up to 24 ports!

Security Appliances

There is a wide variety of appliances in the market which address most of the security concerns out there. The challenge is that all vendors claim they are able to achieve what your security requirements are. The preference is that this is done via wireless connection.

It would be great if the claims are determined to a particular degree by an independent body. The body would conduct benchmark tests to guarantee your safety if making some assumptions.

Efficiency of Security Appliances

A massive amount of code is employed in the creation of security appliances like IPS or IDS. Buffer overflows probability against a product management interface ( management module) like this one is very high. Purchasing a product like this is essential in the hostile and complex computer environment of today.

You need to be aware of the existence of exploitable problems linked with a snort. Snort is the leading Open Source Intrusion Prevention System (IPS) around the globe. It utilizes a string of rules that aid in the definition of malicious activity on the network. It then uses the rules to locate packets matching against the activities and generates you, as the user, alerts.

Snort may be positioned inline to break off these packets. It has three main uses: Like a packet sniffer such as tcpdump, like a complete network intrusion prevention system, or like a packet logger essential in debugging network traffic. You can download Snort and configure it for your business or personal use.

VPN in Security Appliances

A VPN device is a network appliance fitted with advanced security features. VPN appliance, also referred to as Secure Sockets Layer (SSL), is effectively a router offering you firewall protection, authorization, load balancing, and encryption for Virtual Private Networks.

It is a network device that uses a public telecommunication framework like the Internet to offer individual users or remote offices secured proprietary data access. One of the commonly used conventions for the management of message transmission security on the internet is SSL. An ideal VPN device should provide multi-platform functionality and central management. It should also be compatible with all crucial network applications.

Security Appliances License

In networking, a network license facilitates many users on one particular TCP/IP network to have shared access to product licenses. The installed Network License Manager (NLM) controls the issuance of licenses to users.

On starting an Autodesk product, you are required to have a license from the license server via the network. If you have a license, NLM will allocate the computer and user starting the program a license. One thus decreases the number of licenses available on the server by one.

Here, you can check more available conditions of your desired product ASA5525-FTD-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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What does ALLHDD.Com warranty cover?

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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.

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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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