apache balancer, workers on internal IPs

fefe asked:

I’m planning to build my first balancer for one of our website, using apaches mod_proxy and mod_proxy_balancer. Having not so many external IP’s I’m thinking about to use each machines Internal IP but I can not decide if this would be a good workaround or not!enter image description here

Is it going to be enough fast? This is a usable or not?

My answer:

This is what everybody else does (who also doesn’t have enough IPv4 addresses).

You could also use your IPv6 addresses internally, if you have gotten them yet.

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