A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.Firewalls have been a first line of defense in network security for over 25 years. They establish a barrier between secured and controlled internal networks that can be trusted and untrusted outside networks, such as the Internet. A firewall can be hardware, software, or both.

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CISCO ASA5510-BUN-K9 FIREWALL REFURBISHED 

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CISCO ASA5510-BUN-K9 FIREWALL REFURBISHED The Cisco ASA 5510 Adaptive Security Appliance ASA5510-BUN-K9 delivers advanced security and networking services for small and medium-sized businesses and enterprise remote/branch offices in an easy-to-deploy, cost-effective appliance. These servic...

CISCO ASA5520-BUN-K9 FIREWALL REFURBISHED

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CISCO ASA5520-BUN-K9 FIREWALL REFURBISHEDThe Cisco ASA 5520 Adaptive Security Appliance delivers security services with Active/Active high availability and Gigabit Ethernet connectivity for medium-sized enterprise networks in a modular, high-performance appliance. With four Gigabit Ethernet interfac...

CISCO ASA5540-BUN-K9 FIREWALL RF

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CISCO ASA5540-BUN-K9 FIREWALL RFThe Cisco ASA 5540 Adaptive Security Appliance delivers a wide range of high-performance, high-density security services with Active/Active high availability and Gigabit Ethernet connectivity for medium-to-large enterprise and service-provider networks, in a reliable,...

Juniper Firewall ssg320m SB Used

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Product DescriptionThe SSG 320M is an high-performance security platform that helps businesses stop internal and external attacks, prevent unauthorized access, and achieve regulatory compliance. The SSG 320M provides 400 Mbps of stateful firewall performance and 175 Mbps of IPSec VPN performance. Pa...