Use device parameter

src/freedombone-utils-mesh

         search_ipv6=$(ifconfig $1 | grep $network)
         if [ $search_ipv6 ]; then
             result=$(ifconfig $1 | grep $network | awk -F ' ' '{print $2}')
-            ip -6 addr add ${result}/128 dev wlan0
+            ip -6 addr add ${result}/128 dev $1
             return
         fi
     fi