diff --git a/reconnect_inet.sh b/reconnect_inet.sh
index 46a4ad8..3028651 100755
--- a/reconnect_inet.sh
+++ b/reconnect_inet.sh
@@ -33,11 +33,11 @@ reconnect() {
    #echo -n "`hostname --long` reconnected at `date +\"%d.%m.%Y %H:%M:%S\"`"
 
    declare -i _number=0
-   ptp_addr=`ifconfig $device 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f3 | cut -d " " -f1`
+   ptp_addr="$(ip addr show $device 2>/dev/null | grep -E "^\s*inet" | awk '{print$2}')"
    while [ -z "$ptp_addr" ]; do
       [[ $_number -eq 90 ]] && break 
       sleep 1
-      ptp_addr=`ifconfig $device 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f3 | cut -d " " -f1`
+      ptp_addr="$(ip addr show $device 2>/dev/null | grep -E "^\s*inet" | awk '{print$2}')"
       let _number++
    done