Redirect traffic based on GEO IP lookup with whitelist (Varnish 4)

GEOIPRedirection_whitelist.vcl

acl whitelist_geo {
  "13.13.22.30";
  "123.39.96.0"/24;
}

acl geo_to_au {
  "1.1.22.30";
  "133.29.93.0"/30;
}

sub vcl_recv {
  # section.io Edge node automatically performs GEO IP (and city) lookup on every request.
  # We create a request header called "section-io-geo-country" that you can leverage

  # Force IP addresses from ACL to AU
  if((std.ip(req.http.True-Client-IP, "0.0.0.0") ~ geo_to_au) {
    # Australia and New Zealand
    #return (synth(802, "https://www.domain.com.au/"));    
  }

  # Only GEO redirect if IP address is not in whitelist ACL
  if(!(std.ip(req.http.True-Client-IP, "0.0.0.0") ~ whitelist_geo) {
    if (req.http.section-io-geo-country ~ "^(AU|NZ)$") {
        # Australia and New Zealand
        #return (synth(802, "https://www.domain.com.au/"));
    } else if (req.http.section-io-geo-country ~ "^(US|CA|MX)$") {
        # US, Canada and Mexico
        #return (synth(802, "http://www.domain.com/"));
    } else {
        # UK and the rest of the world
        #return (synth(802, "http://www.domain.co.uk"));
    }  
  }

}

sub vcl_synth {
    if (resp.status == 802) {
        set resp.http.Location = resp.reason;
        set resp.status = 302;
        return (deliver);
    }
 }