bug#74907: 31.0.50; nsm-check-local-subnet-ipv4 test fails on macOS with VPN enabled

[Robert Pluim]

>>>>> On Mon, 16 Dec 2024 06:23:12 -0500, Ship Mints <shipmints@gmail.com> said:

    Ship> With the VPN running and without, check the value
    Ship> of (network-lookup-address-info "localhost") and see if the VPN-regime
    Ship> value looks sensible. It is possible that your VPN set up is 
absconding
    Ship> with host resolution. I'd bet that (nsm-should-check "127.0.0.1") 
works
    Ship> fine under both scenarios. You could at the command line also ping
    Ship> localhost and see what that reveals or try macOS network 
"reachability"
    Ship> diagnostic utility scutil -W -r localhost.

Looking at the code, itʼs possible that `network-lookup-address-info'
needs a small adjustment. Letʼs see what Stefan says.

Robert
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