1 files changed, 7 insertions, 0 deletions

diff --git a/custom/tinc/yggdrasil.nix b/custom/tinc/yggdrasil.nix
index 91c1add8..2da48486 100644
--- a/custom/tinc/yggdrasil.nix
+++ b/custom/tinc/yggdrasil.nix
@@ -80,6 +80,13 @@ in {
         ${optionalString cfg.connect "ConnectTo = ymir"}
       '';
       scripts = {
+        "tinc-up" = ''
+          #!${pkgs.stdenv.shell}
+
+          set -e
+          MACFILE="/var/db/$NETNAME.mac"
+          [ -e $MACFILE ] && ip link set dev $INTERFACE address `cat $MACFILE` || cat /sys/class/net/$INTERFACE/address >$MACFILE
+        '';
         "hosts/heimdallr-up" = ''
           #!${pkgs.stdenv.shell}