Firewall Appliance OS Software
Cisco Aegis Appliance software for firewalls delivers the latest firewall and VPN capabilities, enhanced
performance, and aegis improvements, as able-bodied as a account of new features. Adaptation 7.0 and the latest release,
version 8.0, acquaint cogent enhancements to all above anatomic areas. These areas accommodate firewalling
and analysis casework such as cellophane (Layer 2) firewall or baffled (Layer 3) firewall operation and multiple
security contexts (virtualized firewalls), Added Interior Gateway Routing Protocol (EIGRP) support,
Application-Aware Analysis Services, added VPN services, Dynamic Access Policies (DAP), browser-based
SSL VPN, arrangement integration, aerial availability (Active/Active) and added administration and monitoring
services.
Some of the avant-garde appearance accommodate TCP beck reassembly, which assists in audition attacks that are
spread beyond assorted packets (fragmented) by reassembling packets into a abounding packet beck and performing
analysis on the absolute stream.
Another feature, TCP normalization, provides bigger techniques to ascertain TCP-based attacks and is designed
to bead packets that do not arise normal. A austere analysis is performed to affirm RFC acquiescence on the
TCP attack (advanced attack assay for flags and blockage option, window variation, checksum
verification and apprehension of abstracts analytical in retransmitted packets). Several added avant-garde appearance and
enhancements are accessible in the added contempo software adaptation releases.
The Aegis Appliance combines in one accessory avant-garde stateful firewall, VPN concentrator functionality, and
advanced aegis appearance to ambush and acknowledge to arrangement attacks.
The Aegis Appliance software supports an intuitive, easy-to-use GUI-based appliance alleged Adaptive
Security Accessory Manager (ASDM). ASDM is a browser-based Java applet acclimated to configure, monitor, and
manage the Aegis Appliances. ASDM is covered in Chapter 24, "Security and Policy Management."
With the abrupt addition and artefact overviews, sections to chase will altercate the appearance and the
configuration details.