diff --git a/roles/raspberrypi/tasks/main.yml b/roles/raspberrypi/tasks/main.yml
index b80c91f..f666f73 100644
--- a/roles/raspberrypi/tasks/main.yml
+++ b/roles/raspberrypi/tasks/main.yml
@@ -25,19 +25,20 @@
     ( ansible_facts.lsb.id|default("") == "Raspbian" or
       ansible_facts.lsb.description|default("") is match("[Rr]aspbian.*") )
 
-- name: Set detected_distribution to Raspbian (ARM64 on Debian Buster)
+- name: Set detected_distribution to Debian
   set_fact:
-    detected_distribution: Raspbian
-  when:
-    - ansible_facts.architecture is search("aarch64")
-    - raspberry_pi|default(false)
-    - ansible_facts.lsb.description|default("") is match("Debian.*buster")
+    detected_distribution: Debian
+  when: >
+    raspberry_pi|default(false) and
+    ( ansible_facts.lsb.id|default("") == "Debian" or
+      ansible_facts.lsb.description|default("") is match("Debian") )
 
 - name: Set detected_distribution_major_version
   set_fact:
     detected_distribution_major_version: "{{ ansible_facts.lsb.major_release }}"
-  when:
-    - detected_distribution | default("") == "Raspbian"
+  when: > 
+    ( detected_distribution | default("") == "Raspbian" or
+      detected_distribution | default("") == "Debian" )
 
 - name: execute OS related tasks on the Raspberry Pi
   include_tasks: "{{ item }}"
diff --git a/roles/raspberrypi/tasks/prereq/Debian.yml b/roles/raspberrypi/tasks/prereq/Debian.yml
new file mode 100644
index 0000000..9f33913
--- /dev/null
+++ b/roles/raspberrypi/tasks/prereq/Debian.yml
@@ -0,0 +1,34 @@
+---
+- name: Check if /boot/firmware/cmdline.txt exists
+  stat:
+    path: /boot/firmware/cmdline.txt
+  register: boot_firmware_cmdline_txt
+
+- name: Activating cgroup support
+  lineinfile:
+    path: "{{ (boot_firmware_cmdline_txt.stat.exists) | ternary('/boot/firmware/cmdline.txt', '/boot/cmdline.txt') }}"
+    regexp: '^((?!.*\bcgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory\b).*)$'
+    line: '\1 cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory'
+    backrefs: true
+  notify: reboot
+
+- name: Install iptables
+  apt:
+    name: iptables
+
+- name: Flush iptables before changing to iptables-legacy
+  iptables:
+    flush: true
+  changed_when: false   # iptables flush always returns changed
+
+- name: Changing to iptables-legacy
+  alternatives:
+    path: /usr/sbin/iptables-legacy
+    name: iptables
+  register: ip4_legacy
+
+- name: Changing to ip6tables-legacy
+  alternatives:
+    path: /usr/sbin/ip6tables-legacy
+    name: ip6tables
+  register: ip6_legacy