Used Cisco Firewalls & Security

A Cisco firewall is a network security device used to monitor, filter, and control network traffic to prevent unauthorised access and malicious attacks. The firewall protects the network from threats by examining packets for source, destination, content, and contextual information and enforcing security policies.

The Cisco firewall supports deep packet inspection, provides VPN and IPS functionality, and supports multi-layered security policies. In addition to firewalls, Cisco offers comprehensive security solutions, including security management, endpoint security, and threat detection and prevention. Together, these solutions create a comprehensive network security system capable of detecting and responding to evolving network threats in a timely manner.

We offer a 3-month warranty on used cisco firewalls purchased from linknewnet. Upon receipt of your order, we will thoroughly test and maintain the equipment prior to shipment to ensure that you receive a virtually new product and experience the best technical support available! Cisco offers comprehensive network security solutions, including security management, endpoint security, and threat detection and prevention.

Frequently Asked Questions

What is the difference between Cisco ASA and Firepower?

ASA is Cisco's classic stateful firewall platform, while Firepower (FPR series) adds next-generation capabilities - intrusion prevention, advanced malware protection, application visibility and URL filtering - and can run in either FTD (Firepower Threat Defense) or ASA mode. For modern security requirements the Firepower platform is the recommended choice.

Are used Firepower and ASA units fully tested before shipping?

Yes. Every firewall is tested by our engineers before shipment - interfaces, hardware health and boot-up are verified (testing instructions available on request) - and ships with a free 3-month warranty, extendable on request.

Which Firepower model do I need: FPR1010, FPR2110 or FPR4120?

The FPR 2100 series is designed for mid-range deployments, while the FPR 4100 series targets high-end environments with significantly higher throughput (e.g., FPR4120-K9 scales well beyond the FPR2110-ASA-K9 in firewall and IPS throughput). Choose by expected traffic volume and inspection depth - our sales team can match a used unit to your requirements.

Do Firepower licenses and subscriptions transfer with used units?

Firepower licenses are tied to the device serial number. We check registration status before purchase and confirm which features (IPS, AMP, URL filtering, etc.) remain usable; renewals are handled through the Cisco Smart Account - confirm the subscription status with our sales team first.

What after-sales support comes with used Cisco firewalls?

Every unit includes a free 3-month warranty (extendable) and after-sales support via WhatsApp (+86 18954776148) or email (cs@linknewnet.com).

Related Articles

• Cisco FPR4110-NGFW-K9 vs FPR-4120-K9: High-Performance Firewall Face-Off
• Cisco FPR1010-NGFW-K9 vs FPR-4120-K9: Entry-Level vs Enterprise Firewall Comparison
• Cisco FPR2130-NGFW-K9 vs FPR-4120-K9: Mid-Range vs High-End Firewall Comparison
• Cisco FPR2110-ASA-K9 vs FPR-4120-K9: Next-Gen Firewall Performance Showdown
• FPR-4120-K9 vs. FPR2110-ASA-K9: Choosing Your Cisco Security Powerhouse