This is not really exposed nicely. There is a C library sd-network, which will give you the events you want, but it is not yet public (you can still copy it out of git of course). <div class="gmail_quote">On Nov 12, 2015 05:24, "J Decker" <<a href="mailto:d3ck0r@gmail.com">d3ck0r@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Should I have not said specifically Arch linux? Is it something that can't be done? It is something that should be so obvious it doesn't merit an answer? On Fri, Nov 6, 2015 at 1:56 PM, J Decker <<a href="mailto:d3ck0r@gmail.com">d3ck0r@gmail.com</a>> wrote: > I have Arch Linux setup as my router. > It's on a connection that can change the IP that I'm given, when that > happens I need to rerun firewall rules and rebuild my ipv6 tunnel. > How do I run some script or something when the address changes (or > when it's initially given in the case of boot?) > > Also there seems to be no way to specify default ipv6 route for next > hop... ie 'ip -6 route replace ::/0 dev he-ipv6' > It's been a couple months I've been limping along so I forget; I > vaguely remember that this should have been setup in the configuration > scripts; but it didn't work unless I did it this way. The iniital > method I think was 'add' instead of 'replace' which no longer works (I > think something changed in the kernel that affected that; but I don't > know). _______________________________________________ systemd-devel mailing list <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="noreferrer" target="_blank">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a> </blockquote></div>