# add @map5 { ip saddr . ip daddr : meta mark }
ip test-ip4 input
  [ payload load 4b @ network header + 12 => reg 1 ]
  [ payload load 4b @ network header + 16 => reg 9 ]
  [ meta load mark => reg 10 ]
  [ dynset add reg_key 1 set map5 sreg_data 10 ]

# add @map1 { ip saddr . ip daddr : meta mark }
ip test-ip4 input
  [ payload load 4b @ network header + 12 => reg 1 ]
  [ payload load 4b @ network header + 16 => reg 9 ]
  [ meta load mark => reg 10 ]
  [ dynset add reg_key 1 set map1 sreg_data 10 ]