building a iptables-firewallcluster

[Marc Schoechlin]

Hi !

As i remember at linuxtag 2004 (karlsruhe/germany) Harald Welte gave
a speech about a facility in the linux-kernel which allows the
synchronization of conntrack-tables between the different machines
of a firewall-cluster.

I searched for some documentation and the state of this project, but i was not
able to get any useful information about this issue.

Is this now part of the linux-kernel or are there now other strategies
to build firewallclusters for load-balancing and/or 
high-availability ?

Where can i get detailed information about the installation of a 
iptables-based firewall-cluster ?

Best regards

Marc Schoechlin

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