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What's Cisco ASA firewall can do

Cisco Router, Firewall, VPN, SDM, ASA and Switch

What's Cisco ASA firewall can do

Postby guest » Fri Nov 21, 2014 1:20 pm

The ASA provides advanced stateful firewall and VPN concentrator with these models, for example an integrated intrusion prevention module called the AIP SSM/SSC or an integrated content security and control module called the CSC SSM. The ASA advanced features includes multiple security contexts (similar to virtualized firewalls), transparent (Layer 2) firewall or routed (Layer6 3) firewall operation, advanced inspection engines, IPSec VPN, SSL VPN, and clientless SSL VPN support, and many more features.

Cisco ASA Firewall protects inside networks from unauthorized access by users on an outside network. A firewall can also protect inside networks from each other, for example, by keeping a human resources network separate from a user network. If you have network resources that need to be available to an outside user, such as a web or FTP server, you can place these resources on a separate network behind the firewall, called a demilitarized zone (DMZ). The firewall allows limited access to the DMZ, but because the DMZ only includes the public servers, an attack there only affects the servers and does not affect the other inside networks. You can also control when inside users access outside networks (for example, access to the Internet), by allowing only certain addresses out, by requiring authentication or authorization, or by coordinating with an external URL filtering server.
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