# mark set ip saddr map { 10.2.3.2 : 0x0000002a, 10.2.3.1 : 0x00000017}
[
    {
        "mangle": {
            "left": {
                "meta": "mark"
            },
            "right": {
                "map": {
                    "left": {
                        "payload": {
                            "field": "saddr",
                            "name": "ip"
                        }
                    },
                    "right": {
                        "set": [
                            [
                                "10.2.3.1",
                                23
                            ],
                            [
                                "10.2.3.2",
                                42
                            ]
                        ]
                    }
                }
            }
        }
    }
]

# mark set ip hdrlength map { 5 : 0x00000017, 4 : 0x00000001}
[
    {
        "mangle": {
            "left": {
                "meta": "mark"
            },
            "right": {
                "map": {
                    "left": {
                        "payload": {
                            "field": "hdrlength",
                            "name": "ip"
                        }
                    },
                    "right": {
                        "set": [
                            [
                                4,
                                1
                            ],
                            [
                                5,
                                23
                            ]
                        ]
                    }
                }
            }
        }
    }
]