ASA5520-SSL500-K9 Cisco 5520 Adaptive Security Appliance Refurbished

The Cisco ASA5520-SSL500-K9 Adaptive Security Appliance provides advanced content security features that are designed to help protect organizations from various types of threats, such as malware, viruses, and spam.

The content security features of ASA5520-SSL500-K9 include:

• Anti-virus: The ASA5520-SSL500-K9 can scan incoming and outgoing traffic for viruses using its built-in anti-virus feature. This feature is capable of identifying and blocking known viruses and malware, and can also detect new and emerging threats through signature updates.
• Anti-spam: The anti-spam feature of ASA5520-SSL500-K9 helps prevent unwanted email from reaching users' inboxes. It can filter out spam and phishing emails, and also includes customizable filters that allow administrators to block specific types of email.
• URL filtering: ASA5520-SSL500-K9 can block access to malicious websites and other sites that violate company policy through URL filtering. This feature allows administrators to create lists of websites to block or allow, based on categories such as social media, gaming, or file sharing.
• File blocking: The file blocking feature of ASA5520-SSL500-K9 helps prevent the spread of malware through file downloads. It can block downloads of certain file types, such as executable files, scripts, and compressed archives, based on policies set by the administrator.
• Botnet filtering: The botnet filtering feature of ASA5520-SSL500-K9 helps detect and block traffic from botnets, which are networks of compromised computers that are often used for illegal purposes such as distributing spam, launching denial-of-service attacks, or stealing sensitive data.
• Data loss prevention (DLP): The ASA5520-SSL500-K9 can also be configured to prevent the unauthorized transfer of sensitive data outside of the organization. This feature includes customizable policies that can detect and block specific types of data, such as credit card numbers or confidential documents.

The Cisco ASA5520-SSL500-K9 Adaptive Security Appliance comes with several high availability (HA) features that are designed to ensure maximum uptime and data availability for critical business applications.

The primary HA feature of ASA5520-SSL500-K9 is failover. The device supports both active-passive and active-active failover configurations. In an active-passive configuration, one ASA5520-SSL500-K9 device is designated as the primary (active) firewall, while the other device serves as the secondary (passive) firewall. In case of a failure of the primary device, the secondary device takes over and becomes the active firewall. The failover process is transparent to end-users and applications, ensuring continuity of operations.

The active-active failover configuration provides additional redundancy by allowing both ASA5520-SSL500-K9 devices to operate concurrently in an active-active mode. In this configuration, both devices are actively processing traffic, and any failure on one device is seamlessly taken over by the other device. Active-active failover configuration is particularly useful for environments with high traffic volumes or where load balancing is required.

The ASA5520-SSL500-K9 also supports Stateful Failover, a feature that synchronizes connection state information between the primary and secondary devices. This ensures that established connections are maintained even during failover, minimizing disruption to ongoing transactions.

Additionally, the ASA5520-SSL500-K9 supports Virtual Routing and Forwarding (VRF) to enable the creation of virtual routing domains on the device. VRF allows multiple virtual firewalls to be created on a single physical device, enabling the consolidation of multiple security policies into a single device, while maintaining network separation between different departments or tenants.

Here are some best practices for deploying and configuring the ASA5520-SSL500-K9 Cisco 5520 Adaptive Security Appliance:

• Follow a standard deployment model: The ASA5520-SSL500-K9 should be deployed in a manner that aligns with a standard deployment model. For example, the DMZ, inside network, and outside network should be properly defined and segmented.
• Secure management access: The management access to the ASA5520-SSL500-K9 should be properly secured. The device should be configured to allow only authorized management access, and strong passwords should be enforced.
• Configure logging: The device should be configured to log all security-related events. This will enable you to detect and investigate security breaches.
• Implement VPN technology: Implementing VPN technology is critical for securing remote access to your network. The ASA5520-SSL500-K9 provides VPN functionality, and it is recommended that you utilize this functionality.
• Configure firewall rules: Configure firewall rules that allow only necessary traffic. This will help protect your network from unauthorized access.
• Enable Intrusion Prevention System: Enable Intrusion Prevention System (IPS) to protect your network from attacks. IPS provides advanced security features such as protocol anomaly detection, signature-based intrusion detection, and more.
• Implement High Availability: The ASA5520-SSL500-K9 provides High Availability (HA) features that enable you to maintain network connectivity in the event of a hardware or software failure. It is recommended that you implement HA to ensure network uptime.
• Apply patches and updates: Keep your device up-to-date by applying patches and updates as they become available. This will help protect your network from known security vulnerabilities.
• Monitor performance: Monitor the performance of your ASA5520-SSL500-K9 to ensure that it is operating efficiently. This will help you to detect and troubleshoot issues before they become critical.
• Train staff: Ensure that staff members who are responsible for configuring and managing the ASA5520-SSL500-K9 are properly trained. This will help ensure that the device is configured and managed correctly.

• Brand Name: Cisco
  
• Manufacturer: Cisco Systems, Inc
• Manufacturer Part Number: ASA5520-SSL500-K9
• Product Name: ASA 5520 SSL / IPsec VPN Edition - Security
• Device Type Security appliance

• RAM Installed: ( Max ) 2 GB
  
• Flash Memory Installed: (Max): 256 MB
• Form Factor: Rack-mountable
• Connectivity Technology: Wired
• Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
• Features Firewall protection, VPN support, VLAN support
• Encryption Algorithm Triple DES, AES, SSL

• Interfaces: 4 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 1 x network - Ethernet 10Base-T/100Base-TX - RJ-45 1 x management - console - RJ-45 1 x serial - auxiliary - RJ-45 2 x Hi-Speed USB - 4 pin USB Type A
• Power: Device: Power supply - internal
• Voltage Required: AC 120/230 V ( 50/60 Hz )

Network / Transport Protocol IPSec

• Performance Firewall throughput : 450 Mbps VPN throughput : 225 Mbps
• Capacity SSL VPN peers : 500 IPSec VPN peers : 750 Concurrent sessions : 280000

Compliant Standards

• FCC Class A certified, CISPR 22 Class A, EN 60950, EN 61000-3-2, UL 1950, VCCI Class A ITE, IEC 60950, EN 61000-3-3, CSA 22.2 No. 950, EN55022 Class A, ACA TS001, AS/NZS 3260, FCC Part 15

Expansion Slot(s)

• Expansion Slot(s) 1 (total) / 1 (free) x expansion slot
• Enclosure Type Rack-mountable - 1U
• Performance Firewall throughput : 450 Mbps VPN throughput : 225 Mbps