# File lib/simp/cli/config/items/data/simp_options_trusted_nets.rb, line 41
    def validate_item( net )
      ### warn "'#{net}' doesn't end like a CIDR";
      return false if net !~ %r{/\d+$}

      ### warn "list item '#{net}' is not in proper CIDR notation";
      return false if net.split('/').size > 2

      subnet,cidr = net.split('/')

      # NOTE: if we support IPv6, we should redo netmask & validations
      ### warn "subnet '#{subnet}' is not a valid IP!";
      return false if !((subnet =~ Resolv::IPv4::Regex) || (subnet =~ Resolv::IPv6::Regex))

      ### warn "/#{cidr} is not a valid CIDR suffix";
      return false if !(cidr.to_i >= 0 && cidr.to_i <= 32)

      true
    end