ProxySU/TemplateConfg/v2ray/server/03_routing/03_routing.json

{
    "routing": {
        "domainStrategy": "AsIs",
        "rules": [
            {
                "type": "field",
                "ip": [
                    "geoip:private"
                ],
                "outboundTag": "block"
            }
        ]
    }
}