Cisco Systems 10-Port Network Security Appliance/Firewall Wireless (ISA570WBUN1K9)
Price is below average
Current Price
$1 727.59
Average
$1 746.69
Min Price
$1 327.59
Max Price
$2 331.92
Price dynamics
1%
Price will be lower
in next 2 weeks
in next 2 weeks
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Product review & video
in computer networking what is a firewall in general a firewall is a device or a system or a set of systems potentially that sit between two networks and it controls what traffic is allowed from one side to the other in general the firewall should analyze traffic and if it's considered good it allows it through on the other hand if the traffic is considered bad it's blocked by the firewall most commonly firewall policy is defined with access control lists so good traffic is defined with permit statements in the ACLS while bad traffic is defined by deny statements in the ACLS where does the term firewall come from there's an analogy in the physical world you may have noticed if you visit a hotel the doors that are by the stairways they have a sign on them that says fire door please keep closed that fire door itself is installed in a firewall the wall at that periphery is designed so if t
