[FROG] Filter connected routes from being learned ?

[Donald Sharp]

Brandon -

Sounds like you really want vrf's.  Configure a vrf interface and
enslave the appropriate interfaces

donald

On Fri, Jun 29, 2018 at 12:04 AM, Brandon Applegate <brandon at burn.net> wrote:
> Hello,
>
> I am trying to prevent FRR from picking up a route - let’s call it “mgmt”.  These are Ubuntu 16.04 hosts, so I’m using /etc/network/interfaces.  I’m using some manual post-up commands to take one of my NICs and put it into the “mgmt” table (already added to /etc/iproute2/rt_tables).  This is working as intended.
>
> The issue is that FRR is still picking this up as a connected route.  I don’t know enough about the innards of FRR, but I’m guessing it’s picking it up from the interface structure in the kernel - as my route table commands have expunged it from the global/default table.
>
> So on with my real question - is there a way I can filter this ?  I had thought/hoped it would be this:
>
> http://docs.frrouting.org/en/latest/zebra.html#zebra-route-filtering
>
> Either that doesn’t do what I had hoped - or I’m configuring it wrong.  My thought process was to make a PL with a permit matching my mgmt route (10.255.0.0/16) - and a route-map with a deny matching on the PL.  Then I would ‘ip protocol connected route-map DENY-MGMT’.  I’ve tried this, and restarted FRR, but no matter what - this route keeps finding it’s way back in as “connected”.
>
> Any pointers would be greatly appreciated.  Thanks.
>
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> Brandon Applegate - CCIE 10273
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