tldr/pages/linux/ip-rule.md

ip rule

IP routing policy database management. More information: https://man7.org/linux/man-pages/man8/ip-rule.8.html.

• Display the routing policy:

ip rule {{show|list}}

• Add a new rule based on packet source addresses:

sudo ip rule add from {{192.168.178.2/32}}

• Add a new rule based on packet destination addresses:

sudo ip rule add to {{192.168.178.2/32}}

• Delete a rule based on packet source addresses:

sudo ip rule delete from {{192.168.178.2/32}}

• Delete a rule based on packet destination addresses:

sudo ip rule delete to {{192.168.178.2/32}}

• Flush all deleted rules:

ip rule flush

• Save all rules to a file:

ip rule save > {{path/to/ip_rules.dat}}

• Restore all rules from a file:

ip rule restore < {{path/to/ip_rules.dat}}