static default route not always pushed to kernel (2.0.4)

[Kenth Eriksson]

On Mon, 2019-04-29 at 15:42 +0200, Ondrej Zajicek wrote:
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> On Mon, Apr 29, 2019 at 01:01:13PM +0000, Kenth Eriksson wrote:
> > > 'ip' tool, perhaps harder in other cases). It would be great if
> > > there
> > > existed sysctl option for default IPv4 route metric.
> > > 
> > 
> > There is no overwrite involed here. The default route in the kernel
> > here has metric 100. As you said, bird pushes with metric 32 so it
> > should push again.
> 
> Well, i misread your mail. If i understand it correctly, the issue is
> not that routes are not pushed into kernel, but that they are not
> pushed into master table. I guess you have two routes for the same
> network in one static protocol. That is not valid case, although
> we are missing error checks for that configuration.
> 
> You could either use two separate static protocol instances, or you
> could use this patch:
> 
> https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.labs.nic.cz%2Flabs%2Fbird%2Fcommit%2F9861dba5230da539e6ce7d2b6baa4f2631556d09&data=02%7C01%7CKenth.Eriksson%40infinera.com%7C64122b5318634277203a08d6cca89074%7C285643de5f5b4b03a1530ae2dc8aaf77%7C1%7C0%7C636921421691874991&sdata=pdNajX29Hwlbsdk5gfH%2BlYIzQaEidqw4qRuedW2%2BohI%3D&reserved=0
> 

That patch did not work for me, still same issue. I had to add DISTANCE
to the CF_KEYWORDS to make it compile. But is it anything else that is
required?

I thought two prefixes differing only on metric should be perfectly
valid? The kernel accepts that, so why would bird not?

> That allows multiple routes for the same network with different
> preferences (with explicit preference parameter) in one static
> protocol
> instance, e.g.:
> 
>   route 0.0.0.0/0 via 10.210.137.1 { preference 220; };
>   route 0.0.0.0/0 via 192.168.120.1 { preference 230; };
> 
> --
> 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."