On 5 Nov 2018, at 20:04, RW wrote:

On Mon, 05 Nov 2018 23:37:59 +0100
Benny Pedersen wrote:


https://en.wikipedia.org/wiki/Private_network

why are this network not default internal_networks trusted_networks
msa_networks


They are if you let SA guess your networks. If you specify the networks
manually you have to specify everything

And the reason for that is simply that not everyone trusts all of the machines on reachable RFC1918 networks. For example, I worked for some years at a multinational where 10/8 was allocated globally and was routed globally. I had a list of specific non-local machines I was supposed to trust for outbound relay (and use when my outbounds couldn't use the local external link) but there was no way I could also trust the tens of thousands of other 10.* machines around the world that could very well be compromised personal desktops. I didn't even trust my own local personal desktops.

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