diff --git a/installbox6.yml b/installbox6.yml
new file mode 100644
index 0000000..dc66943
--- /dev/null
+++ b/installbox6.yml
@@ -0,0 +1,36 @@
+---
+## This playbook deploys the installbox6.  Add 'hostname=XXX' and
+## 'domain=YYY' to the installer boot parameters to set hostname and
+## domain.
+
+## FIXME: works only on bookworm (kea-dhcp6, atftpd)
+
+- name: apply configuration to the installbox6
+  hosts: all
+  remote_user: ansible
+  become: true
+
+  vars:
+    ## This interface provides the default route:
+    if_lan: "{{ ansible_default_ipv4.interface }}"
+    prefix: '2001:db8:b001::/64'
+
+    ## Find the IPv6 address: FIXME: not needed anymore?
+    ipv6_lan: "{{ prefix | ipaddr('address') | slaac(ansible_default_ipv4.macaddress) }}"
+
+    di_dist: "{{ ansible_distribution_release }}"
+    di_version: 11 # "{{ ansible_distribution_major_version }}"
+    di_pkg: "debian-installer-{{ di_version }}-netboot-amd64"
+
+    extra_pkgs: [binutils] # FIXME: missing dependency in di-netboot-assistant
+
+    ansible_user: ansible
+    repo_dir: "/home/{{ ansible_user }}/debian-lan"
+    ansible_python_interpreter: "/usr/bin/python3"  ## needed for firewalld module
+
+  roles:
+    - up2date_debian
+    - dhcp6radvdatftpd
+    - netbootinstaller
+    - aptcacher
+    - prepare4clients
diff --git a/roles/dhcp6radvdatftp/handlers/main.yml b/roles/dhcp6radvdatftp/handlers/main.yml
new file mode 100644
index 0000000..897fb0d
--- /dev/null
+++ b/roles/dhcp6radvdatftp/handlers/main.yml
@@ -0,0 +1,20 @@
+---
+- name: restart radvd
+  systemd:
+    name: radvd.service
+    state: restarted
+    enabled: true
+  listen: restart radvd
+
+- name: restart kea-dhcp6-server
+  systemd:
+    name: kea-dhcp6-server.service
+    state: restarted
+    enabled: true
+  listen: restart kea-dhcp6-server
+
+- name: restart network interfaces
+  systemd:
+    name: networking
+    state: restarted
+  listen: reconfigure network
diff --git a/roles/dhcp6radvdatftp/tasks/main.yml b/roles/dhcp6radvdatftp/tasks/main.yml
new file mode 100644
index 0000000..17ecd17
--- /dev/null
+++ b/roles/dhcp6radvdatftp/tasks/main.yml
@@ -0,0 +1,39 @@
+## DHCPv6, RAs and TFTP
+---
+- name: preseed aftpd
+  debconf:
+    name: atftpd
+    question: atftpd/basedir
+    value: /var/lib/tftpboot
+    vtype: string
+
+- name: install di-netboot-assistant and installer package
+  apt:
+    name:
+      - kea-dhcp6-server
+      - radvd
+      - atftpd
+    state: latest # noqa package-latest
+
+- name: configure radvd
+  template:
+    src: radvd.conf.j2
+    dest: /etc/radvd.conf
+    mode: 0644
+  notify: restart radvd
+
+- name: configure kea-dhcp-server
+  template:
+    src: kea-dhcp6.conf.j2
+    dest: /etc/kea/kea-dhcp6.conf
+    mode: 0644
+  notify: restart kea-dhcp6-server
+
+- name: set IPv6 address on interface
+  blockinfile:
+    path: /etc/network/interfaces
+    block: |
+      allow-hotplug {{ if_lan }}
+      iface {{ if_lan }} inet6 static
+         address 2001:db8:b001::1/64
+  notify: reconfigure network
diff --git a/roles/dhcp6radvdatftp/templates/kea-dhcp6.conf.j2 b/roles/dhcp6radvdatftp/templates/kea-dhcp6.conf.j2
new file mode 100644
index 0000000..305bde1
--- /dev/null
+++ b/roles/dhcp6radvdatftp/templates/kea-dhcp6.conf.j2
@@ -0,0 +1,20 @@
+{
+   "Dhcp6": {
+      "interfaces-config": {
+         "interfaces": [ "{{ if_lan }}" ]
+      },
+      "option-data": [
+         {
+            "name": "bootfile-url",
+            "data": "tftp://[2001:db8:b001::1]/d-i/n-a/grubx64.efi"
+         }
+      ],
+      "subnet6": [
+         {
+            "subnet": "2001:db8:b001::/64",
+            "pools": [ { "pool": "2001:db8:b001::2 - 2001:db8:b001::ffff" } ],
+            "interface": "enp1s0"
+         }
+      ]
+   }
+}
diff --git a/roles/dhcp6radvdatftp/templates/radvd.conf.j2 b/roles/dhcp6radvdatftp/templates/radvd.conf.j2
new file mode 100644
index 0000000..2d52dc2
--- /dev/null
+++ b/roles/dhcp6radvdatftp/templates/radvd.conf.j2
@@ -0,0 +1,10 @@
+interface {{ if_lan }}
+{
+   AdvSendAdvert on;
+   AdvManagedFlag on;
+   AdvOtherConfigFlag on;
+
+   prefix {{ prefix }}
+   {
+   };
+};