change routing while exporting to kernel

[Ondrej Zajicek]

On Tue, Nov 06, 2018 at 12:57:04PM +0100, Michael Schwartzkopff wrote:
> hi,
> 
> my config:
> 
> filter export2kernel {
> 
>   if net ~ 192.168.12.0/24 then {
>     ifname = "vti0";
>     accept;
>   }
> 
> }
> 
> 
> should bird recoqnize if the link goes down and comes up again?

In this case BIRD does not take into account that.

> At least in my setup the down detection works:
> 
> ip l s down vti0
> 
> results that the route disappears from the kernel routing table.

That was done by Linux kernel itself.

> But a ip l s up vti0 does not inject the route into the kernel table again.
> 
> Ideas?

Well, they will be inserted again during periodic routing table scan
(see 'scan time' kernel protocol option).

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
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"To err is human -- to blame it on a computer is even more so."