Setting auto_segment during initialization will override manually set Variable.

ffs-set-segment/files/etc/init.d/ffs-set-segment

@@ -4,7 +4,6 @@ START=97
 
 start () {
     uci set fastd.mesh_vpn.on_connect='/usr/sbin/ffs-set-segment'
-    uci set fastd.mesh_vpn_backbone.auto_segment='1'
     /usr/sbin/ffs-set-segment
     /etc/init.d/micrond enable
     /etc/init.d/micrond restart