I am trying for days to setup a specific route with systemd-networkd. And it all fails.
[Match] Name=en* [Network] DHCP=yes IPv6PrivacyExtensions=kernel IPv6AcceptRA=true [Route] Destination=2001:470:2099::/48 PreferredSource=2001:470:2099:e2:226:b9ff:fef6:d709 Source=2001:470:2099:e2:226:b9ff:fef6:d709 Metric=256
I don't know which is important : the Source or PreferredSource (I have tried to disable each of parameters, none work). The daemon always say that it cannot set the route. It's invalid. But I don't have more precision.
What I wish to acheive is to set a route in the same way as :
ip -6 route add 2001:470:2099::/48 src 2001:470:2099:e2:226:b9ff:fef6:d709 dev eno1 metric 128
So here, it's the source address of the route that is important. All that goes to this /48 network should use this address.
Problem is also to assure the route surpass the normal /64 route, as it's this:
2001:470:2099:e2::/64 dev eno1 proto kernel metric 256 expires 3483sec pref medium fe80::/64 dev eno1 proto kernel metric 256 pref medium default via fe80::226:b9ff:fef6:d709 dev eno1 proto ra metric 1024 expires 483sec hoplimit 255 pref medium
What should I do ?