netconfig.sh: Fix error in determin ipv4 address.

netconfig.sh

@@ -294,7 +294,7 @@ while  ! $configured && [ $_try_number -lt $max_attempts ]  ; do
 
       ## - Is the device present and has local Address ?
       ## -
-      local_gw_address="$(ip addr show $inet_device 2> /dev/null | grep inet | awk '{print$2}' | cut -d '/' -f1)"
+      local_gw_address="$(ip addr show $inet_device 2> /dev/null | grep -E "\s+inet\s+" | awk '{print$2}' | cut -d '/' -f1)"
       if [ -z $local_gw_address ]; then
          if $LOGGING_CONSOLE ; then
             echo -e "\n\t[ Error ]: Connection at interface \"$inet_device\" seems to be down !"