diff --git a/configure-host-oel6/tasks/kernel_configuration.yml b/configure-host-oel6/tasks/kernel_configuration.yml
index 1e54970..b390bf9 100755
--- a/configure-host-oel6/tasks/kernel_configuration.yml
+++ b/configure-host-oel6/tasks/kernel_configuration.yml
@@ -5,19 +5,25 @@
   - name: Ajustement des paramètres du Kernel
     sysctl: name={{ item.name }} value="{{ item.value }}" state=present reload=yes ignoreerrors=yes
     with_items: 
-      - { name: kernel.shmall, value: "{{ ((0.4 * ansible_memtotal_mb)*1024)|round|int  }}" }
-      - { name: kernel.shmmax, value: "{{ ((0.5 * ansible_memtotal_mb)*1024)|round|int  }}" }
+    with_items: 
+      # shmall = 50% de la RAM pour les SGA Oracle, divisé par PAGE_SIZE (getconf PAGE_SIZE = 4096)
+      # on suppose que 60% de la RAM sera affectée aux SGA
+      - { name: kernel.shmall, value: "{{ ((0.6 * ansible_memtotal_mb)*1024*1024/4096)|round|int  }}" }
+      - { name: kernel.shmmax, value: "{{ ((0.8 * ansible_memtotal_mb)*1024*1024)|round|int  }}" }
+#      - { name: kernel.shmmax, value: 4398046511104 }
       - { name: kernel.shmmni, value: 4096 }
       - { name: kernel.sem, value: "250 32000 100 128" }
       - { name: fs.file-max, value: 6815744 }
       - { name: fs.aio-max-nr, value: 1048576 }
       - { name: net.ipv4.ip_local_port_range, value: "9000 65500" }
+      - { name: net.ipv4.conf.all.rp_filter, value: 2 }
+      - { name: net.ipv4.conf.default.rp_filter, value: 2 }
       - { name: net.core.rmem_default, value: 262144 }
       - { name: net.core.rmem_max, value: 4194304 }
       - { name: net.core.wmem_default, value: 262144 }
       - { name: net.core.wmem_max, value: 1048576 }
       - { name: vm.nr_hugepages, value: "{{ (((percent_hugepages/100) * ansible_memtotal_mb)/2)|round|int  }}" }
-    tags: sysconfig
+    tags: sysctl
   
   - name: Configuration PAM
     lineinfile: dest=/etc/pam.d/login state=present line="session required pam_limits.so"
diff --git a/configure-host-oel7/tasks/kernel_configuration.yml b/configure-host-oel7/tasks/kernel_configuration.yml
index 6cc022c..497e2fb 100755
--- a/configure-host-oel7/tasks/kernel_configuration.yml
+++ b/configure-host-oel7/tasks/kernel_configuration.yml
@@ -7,8 +7,8 @@
     with_items: 
       # shmall = 50% de la RAM pour les SGA Oracle, divisé par PAGE_SIZE (getconf PAGE_SIZE = 4096)
       # on suppose que 60% de la RAM sera affectée aux SGA
-      - { name: kernel.shmall, value: "{{ ((0.7 * ansible_memtotal_mb)*1024*1024/4096)|round|int  }}" }
-#      - { name: kernel.shmmax, value: "{{ ((0.8 * ansible_memtotal_mb)*1024*1024)|round|int  }}" }
+      - { name: kernel.shmall, value: "{{ ((0.6 * ansible_memtotal_mb)*1024*1024/4096)|round|int  }}" }
+      - { name: kernel.shmmax, value: "{{ ((0.8 * ansible_memtotal_mb)*1024*1024)|round|int  }}" }
 #      - { name: kernel.shmmax, value: 4398046511104 }
       - { name: kernel.shmmni, value: 4096 }
       - { name: kernel.sem, value: "250 32000 100 128" }
@@ -21,7 +21,7 @@
       - { name: net.core.rmem_max, value: 4194304 }
       - { name: net.core.wmem_default, value: 262144 }
       - { name: net.core.wmem_max, value: 1048576 }
-    tags: sysctl.conf
+    tags: sysctl
   
   - name: Configuration PAM
     lineinfile: dest=/etc/pam.d/login state=present line="session required pam_limits.so"