Advanced Routing with iproute2

ip rule show

0: from all lookup local

32762: from 192.168.1.51 iif tuntest lookup rule_244

32763: from 172.31.23.244 iif tuntest lookup rule_244

32764: from 172.31.23.244 lookup 1

32765: from 172.31.23.244/24 lookup 1

32766: from all lookup main

32767: from all lookup default

delete a rule

ip rule del 172.31.23.244