ASA Load Balancing different versions

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didyap Thu, 04/03/2008 - 07:00
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An ASA 5505 configured with dual ISP backup supports cluster-based VPN load balancing over the two Ethernet ports available in the Internet zone. The load-balancing scheme involves a "virtual director" IP address that is the destination of incoming client connections. The server that share a virtual director IP address form a cluster, where one cluster member acts as the cluster master. The master receives a request sent to the virtual director and redirects the client, using a proprietary IKE notify message, to the optimal server in the cluster. The current ISAKMP session terminates, and a new session is attempted to the optimal server.


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