On 5/9/20 3:35 PM, Maciej Żenczykowski wrote:
> Do we have some sort of beginner's introduction to Linux VRF somewhere?
> What they are? How to use them?
Ido's response gave introductory commands which can also be found here:
https://www.kernel.org/doc/Documentation/networking/vrf.txt
This should answer most questions about more advanced topics:
http://schd.ws/hosted_files/ossna2017/fe/vrf-tutorial-oss.pdf
Lately, I am putting blogs on https://people.kernel.org/dsahern for
recurring questions.
>
> Currently the concept simply doesn't fit into my mental model of networking...
network namespaces = device level separation and up
VRF = Layer 3 and up separation
>
> We've actually talked about maybe possibly using VRF's in Android (for
> our multi network support)...
> but no-one on our team has the faintest idea about how they work...
> (and there's rumours that they don't work with ipv6 link local)
>
Rumors are ugly. If in doubt, ask. LLA with VRF is a primary requirement
from the beginning.
With 5.3 and up, you can have IPv4 routes with IPv6 LLA gateways with
and without VRFs.
