Fix for routing table breaking bug
martin.kraus at wujiman.net
Fri Oct 24 23:42:30 CEST 2008
On Fri, Oct 24, 2008 at 11:05:45PM +0200, Ondrej Zajicek wrote:
> Here is a patch fixing a bug that causes breakage of a local routing
> table during shutdown of Bird. The problem was caused by shutdown
> of 'device' protocol before shutdown of 'kernel' protocol. When
> 'device' protocol went down, the route (with local network prefix)
> from different protocol (BGP or OSPF) became preferred and installed
> to the kernel routing table. Such routes were broken (like
> 192.168.1.0/24 via 192.168.1.2). I think it is also the cause
> of problem reported by Martin Kraus.
> The patch disables updating of kernel routing table during shutdown of
> Bird. I am not sure whether this is the best way to fix it, I would
> prefer to forbid 'kernel' protocol to overwrite routes with
> 'proto kernel'.
> The patch also fixes a problem that during shutdown sometimes routes
> created by Bird remained in the kernel routing table.
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