# icmp type echo-request
[
    {
        "match": {
            "left": {
                "payload": {
                    "field": "type",
                    "protocol": "icmp"
                }
            },
	    "op": "==",
            "right": "echo-request"
        }
    }
]

# meta l4proto icmp icmp type echo-request
[
    {
        "match": {
            "left": {
                "meta": { "key": "l4proto" }
            },
	    "op": "==",
            "right": "icmp"
        }
    },
    {
        "match": {
            "left": {
                "payload": {
                    "field": "type",
                    "protocol": "icmp"
                }
            },
	    "op": "==",
            "right": "echo-request"
        }
    }
]

# meta l4proto ipv6-icmp icmpv6 type nd-router-advert
[
    {
        "match": {
            "left": {
                "meta": { "key": "l4proto" }
            },
	    "op": "==",
            "right": "ipv6-icmp"
        }
    },
    {
        "match": {
            "left": {
                "payload": {
                    "field": "type",
                    "protocol": "icmpv6"
                }
            },
	    "op": "==",
            "right": "nd-router-advert"
        }
    }
]

# meta l4proto 58 icmpv6 type nd-router-advert
[
    {
        "match": {
            "left": {
                "meta": { "key": "l4proto" }
            },
	    "op": "==",
            "right": 58
        }
    },
    {
        "match": {
            "left": {
                "payload": {
                    "field": "type",
                    "protocol": "icmpv6"
                }
            },
	    "op": "==",
            "right": "nd-router-advert"
        }
    }
]

# icmpv6 type nd-router-advert
[
    {
        "match": {
            "left": {
                "payload": {
                    "field": "type",
                    "protocol": "icmpv6"
                }
            },
	    "op": "==",
            "right": "nd-router-advert"
        }
    }
]

# meta sdif "lo" accept
[
    {
        "match": {
            "left": {
                "meta": {
                    "key": "sdif"
                }
            },
            "op": "==",
            "right": "lo"
        }
    },
    {
        "accept": null
    }
]

# meta sdifname != "vrf1" accept
[
    {
        "match": {
            "left": {
                "meta": {
                    "key": "sdifname"
                }
            },
            "op": "!=",
            "right": "vrf1"
        }
    },
    {
        "accept": null
    }
]