1
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{"nftables": [{"metainfo": {"version": "VERSION", "release_name": "RELEASE_NAME", "json_schema_version": 1}}, {"table": {"family": "inet", "name": "t", "handle": 0}}, {"set": {"family": "inet", "name": "s", "table": "t", "type": ["ipv4_addr", "inet_service"], "handle": 0, "size": 65536, "flags": ["timeout", "dynamic"], "elem": [{"concat": ["192.168.7.1", 22]}]}}, {"chain": {"family": "inet", "table": "t", "name": "c", "handle": 0}}, {"rule": {"family": "inet", "table": "t", "chain": "c", "handle": 0, "expr": [{"match": {"op": "==", "left": {"payload": {"protocol": "tcp", "field": "dport"}}, "right": 21}}, {"set": {"op": "add", "elem": {"elem": {"val": {"concat": [{"payload": {"protocol": "ip", "field": "saddr"}}, 22]}, "timeout": 60}}, "set": "@s"}}]}}]}
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