[FROG] Link Scope IPs

[Donald Sharp]

Chris -

FRR currently sets RT_SCOPE_UNIVERSE to the routes it installs.  It
would not be too hard to add the ability to change this, someone would
just need to write it up.

donald

On Fri, Mar 29, 2019 at 4:22 PM Chris Malton (Delta V)
<chris at deltav-tech.co.uk> wrote:
>
> Hi all,
>
> I'm sure this must have been asked before, but is it possible to set
> "scope link" on an IP address in FRR?  I use private link addresses
> heavily because of the exhaustion of v4, and therefore everything is
> using RFC1918 internally.
>
> While I'm deploying v6 and we don't have issues there, I don't want
> RFC1918 addresses to show up (or, indeed, fail to show up) for v4
> traceroutes.  All of my routers have loopback addresses, and I'd like
> Linux to use them in preference to the RFC1918s on the interface.  The
> normal way of me doing this is to set "scope link" on all of them.
>
> Alas, such an option doesn't seem to exist in FRR.
>
> Am I missing something?
>
> Regards,
>
> Chris Malton
>
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