# dup to 192.168.2.1 [ { "dup": { "addr": "192.168.2.1" } } ] # dup to 192.168.2.1 device "lo" [ { "dup": { "addr": "192.168.2.1", "dev": "lo" } } ] # dup to ip saddr map { 192.168.2.120 : 192.168.2.1 } device "lo" [ { "dup": { "addr": { "map": { "key": { "payload": { "field": "saddr", "protocol": "ip" } }, "data": { "set": [ [ "192.168.2.120", "192.168.2.1" ] ] } } }, "dev": "lo" } } ]