Good evening, I have seen that the static protocol has the attribute "krt_prefsrc" which seems to fit the source IP as seen by the kernel: [18:44] server120.place15:~# ip route get 2001:4860:4860::8888 2001:4860:4860::8888 from :: via 2001:7f8:24::4a dev eth7 proto bird src 2001:7f8:24::ae metric 32 pref medium On this particular machine bird (?) selected 2001:7f8:24::ae as the source address, which makes sense as it is the only IP address on the interface. However that address is a peering IP address and traffic to it is not forwarded outside of the peering. Now I can easily add another ip address on the interface that is within a prefix that I control, but how do I ensure that the route is changed with another source ip address? I think what I am looking for is something on the line of -------------------------------------------------------------------------------- protocol kernel kernel_v6 { ipv6 { export all; prefsrc ... ; }; } -------------------------------------------------------------------------------- Above obviously has a problem, as the preferred address is different, depending on which device the route is applied to...but as far as I can see bird adds the route, so bird probably also need to set the preferred source? Or is it something better solved in the kernel somehow? Cheers, Nico -- Sustainable and modern Infrastructures by ungleich.ch