On Tue, Aug 04, 2026 at 10:47:07AM +0900, Yuyang Huang wrote: > Record why the kernel deletes an IPv6 route on its own: > > - RT_DEL_REASON_EXPIRED for routes reaped by the FIB6 garbage > collector after their RTF_EXPIRES lifetime ran out. > - RT_DEL_REASON_RA_WITHDRAWN for default routes, prefix routes and > RFC 4191 route information routes withdrawn by a zero-lifetime > Router Advertisement. > > Deleting a default route because its metric changed is not a > withdrawal, so it keeps RT_DEL_REASON_UNSPEC. > > Signed-off-by: Yuyang Huang <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
