An example configuration – load balancing and CARP

To demonstrate how the concepts introduced might be implemented in a real-world scenario, we will return to the example network introduced in the beginning of the chapter. Some very specific requirements were outlined:

  • We need redundant firewalls, and this requires implementing CARP.
  • We wanted to balance outgoing traffic across two WAN connections, which requires gateway load balancing.
  • Finally, we wanted to introduce some redundancy into our FTP server, and have at least two separate servers. This requires implementing server load balancing.

Assume that we have a LAN network for local traffic, and also assume that we have a separate DMZ network for the FTP server. Prior to implementing any of the ...

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