Sunday 22 April 2012

Security Context:


Security Context:-
                Cisco Security appliance which have version 7.0 or above support Security context which allow them to Create multiple virtual firewall. Each virtualized partition is an independent device & have its own set of security policies.
                Multiple context modes do not support VPN, Dynamic routing and multicasting. Although it support static routing. It support both Routed and Transparent mode, but at a time only one mode can be used.

Friday 20 April 2012

ASA failover......

Failover
The security appliance offers a failover function that provides a safeguard mechanism in the event of unit failure. When a unit fails, anther immediately takes its place. The failover configuration requires two identical security appliances connected to each other through a dedicated failover link and, optionally, a stateful failover link. The health of the active interfaces and units is monitored to determine if specific failover conditions are met. If those conditions are met, failover occurs.