diff --git a/configure-host-oel7/tasks/kernel_configuration.yml b/configure-host-oel7/tasks/kernel_configuration.yml
index 992a193..233be1e 100755
--- a/configure-host-oel7/tasks/kernel_configuration.yml
+++ b/configure-host-oel7/tasks/kernel_configuration.yml
@@ -6,12 +6,15 @@
     sysctl: name={{ item.name }} value="{{ item.value }}" state=present reload=yes ignoreerrors=yes sysctl_file=/etc/sysctl.conf
     with_items: 
       - { name: kernel.shmall, value: "{{ ((0.4 * ansible_memtotal_mb)*1024*1024)|round|int  }}" }
-      - { name: kernel.shmmax, value: "{{ ((0.55 * ansible_memtotal_mb)*1024*1024)|round|int  }}" }
+#      - { name: kernel.shmmax, value: "{{ ((0.55 * 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 }
@@ -29,8 +32,9 @@
       - "* hard nproc 16384"
       - "* soft nofile 1024"
       - "* hard nofile 65536"
-      - "* soft memlock {{ ((0.9 * ansible_memtotal_mb)*1024)|round|int }}"
-      - "* hard memlock {{ ((0.9 * ansible_memtotal_mb)*1024)|round|int }}"
+#      - "* soft memlock {{ ((0.9 * ansible_memtotal_mb)*1024)|round|int }}"
+      - "* soft memlock {{ [((0.9 * ansible_memtotal_mb)*1024)|round|int,134217728] | max }}"
+      - "* hard memlock {{ [((0.9 * ansible_memtotal_mb)*1024)|round|int,134217728] | max }}"
       - "* soft stack 10240"
       - "* hard stack 32768"
       - "* soft core  unlimited"