diff --git a/netconfig.sh b/netconfig.sh
index 39844c1..4dd4cd5 100755
--- a/netconfig.sh
+++ b/netconfig.sh
@@ -278,6 +278,45 @@ while  ! $configured && [ $_try_number -lt $max_attempts ]  ; do
       let number_rt_table="$number_rt_table+100"
       prio=0
 
+      ## - Delete routing table $rt_name if exists, but not matches $number_rt_table
+      ## -
+      if $(grep $rt_name /etc/iproute2/rt_tables > /dev/null 2>&1) ; then
+
+         if ! $(grep -E "^$number_rt_table\s+$rt_name" /etc/iproute2/rt_tables > /dev/null 2>&1) ; then
+            echo "" >> $log_file
+            echo "## - Delete routing table \"$rt_name\" in file /etc/iproute2/rt_tables" >> $log_file
+            echo "## -" >> $log_file
+            echo "sed -i \"/$rt_name/d" /etc/iproute2/rt_tables\" >> $log_file
+
+            sed -i "/$rt_name/d" /etc/iproute2/rt_tables > /dev/null 2>&1 
+         fi
+      fi
+
+      ## - Delete routing table $number_rt_table if exists, but not matches  $rt_name 
+      ## -
+      if $(grep -E "^$number_rt_table" /etc/iproute2/rt_tables > /dev/null 2>&1) ; then
+
+         if ! $(grep -E "^$number_rt_table\s+$rt_name" /etc/iproute2/rt_tables > /dev/null 2>&1) ; then
+            echo "" >> $log_file
+            echo "## - Delete routing table \"$number_rt_table\" in file /etc/iproute2/rt_tables" >> $log_file
+            echo "## -" >> $log_file
+            echo "sed -i \"/$number_rt_table/d" /etc/iproute2/rt_tables\" >> $log_file
+
+            sed -i "/$number_rt_tablei/d" /etc/iproute2/rt_tables > /dev/null 2>&1 
+         fi
+      fi
+
+      ## - Delete routing table number $number_rt_table not matching $rt_name
+      ## -
+      if $(grep -E "$number_rt_table\s+[^(${rt_name})]" /etc/iproute2/rt_tables > /dev/null 2>&1) ; then
+
+         echo "" >> $log_file
+         echo "## - Delete routing table number $number_rt_table not matching $rt_name" >> $log_file
+         echo "## -" >> $log_file
+         echo "sed -i \"/${number_rt_table}\s\+[^(${rt_name})]/d\" /etc/iproute2/rt_tables" >> $log_file
+
+         sed -i "/${number_rt_table}\s\+[^(${rt_name})]/d" /etc/iproute2/rt_tables > /dev/null 2>&1 
+      fi
 
       ## - Add new routing table to /etc/iproute2/rt_tables
       ## - if not yet exists