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tldr/pages/linux/ip-route.md

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# ip route
> IP Routing table management subcommand.
> More information: <https://manned.org/ip-route>.
- Display the `main` routing table:
`ip {{[r|route]}}`
- Add a default route using gateway forwarding:
`sudo ip {{[r|route]}} {{[a|add]}} default via {{gateway_ip}}`
- Add a default route using `ethX`:
`sudo ip {{[r|route]}} {{[a|add]}} default dev {{ethX}}`
- Add a static route:
`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} via {{gateway_ip}} dev {{ethX}}`
- Delete a static route:
`sudo ip {{[r|route]}} {{[d|delete]}} {{destination_ip}} dev {{ethX}}`
- Change or replace a static route:
`sudo ip {{[r|route]}} {{change|replace}} {{destination_ip}} via {{gateway_ip}} dev {{ethX}}`
- Show which route will be used by the kernel to reach an IP address:
`ip {{[r|route]}} {{[g|get]}} {{destination_ip}}`
- Display a specific routing table:
`ip {{[r|route]}} {{[l|list]}} {{[t|table]}} {{table_number}}`