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cheatsheet-tldr/tldr/linux/ip-rule
2025-10-10 00:19:31 +00:00

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---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# ip rule
> IP routing policy database management.
> More information: <https://manned.org/ip-rule>.
- Display the routing policy:
`ip {{[ru|rule]}}`
- Create a new generic routing rule with a higher priority than `main`:
`sudo ip {{[ru|rule]}} {{[a|add]}} from all lookup {{100}}`
- Add a new rule based on packet source addresses:
`sudo ip {{[ru|rule]}} {{[a|add]}} from {{192.168.178.2/32}}`
- Add a new rule based on packet destination addresses:
`sudo ip {{[ru|rule]}} {{[a|add]}} to {{192.168.178.2/32}}`
- Delete a rule based on packet source addresses:
`sudo ip {{[ru|rule]}} {{[d|delete]}} from {{192.168.178.2/32}}`
- Remove all routing rules:
`sudo ip {{[ru|rule]}} {{[f|flush]}}`
- Save all rules to a file:
`ip {{[ru|rule]}} {{[s|save]}} > {{path/to/ip_rules.dat}}`
- Restore all rules from a file:
`sudo ip < {{path/to/ip_rules.dat}} {{[ru|rule]}} {{[r|restore]}}`