diff --git a/.gitignore b/.gitignore
index fc586ce..ea2eabf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.retry
+tmp
 ldap-password.txt
diff --git a/group_vars/all/vars.yml b/group_vars/all/vars.yml
index 572a607..c3f0502 100644
--- a/group_vars/all/vars.yml
+++ b/group_vars/all/vars.yml
@@ -77,5 +77,4 @@ radius_pg_replication_password: "{{ vault_re2o_db_user_passwords.replication }}"
 radius_pg_re2o_ro_password: "{{ vault_re2o_db_user_passwords.re2o_ro }}"
 
 
-
-
+apartment_block_dhcp: "{{ apartment_block }}"
diff --git a/group_vars/gs/main.yml b/group_vars/gs/main.yml
index 0161c8a..25c3139 100644
--- a/group_vars/gs/main.yml
+++ b/group_vars/gs/main.yml
@@ -1,5 +1,7 @@
 ---
 apartment_block: gs
+apartment_block_dhcp: sand
+
 apartment_block_id: 5
 
-router_ip_suffix: 240
+router_ip_suffix: 254
diff --git a/hosts b/hosts
index b688b50..bbc392f 100644
--- a/hosts
+++ b/hosts
@@ -121,17 +121,31 @@ ldap-replica-edc-backup.adm.auro.re
 
 [gs_pve]
 perceval.adm.auro.re
+lancelot.adm.auro.re
+odin.adm.auro.re
 
 [gs_vm]
 dhcp-gs.adm.auro.re
+dhcp-gs-backup.adm.auro.re
 dns-gs.adm.auro.re
+dns-gs-backup.adm.auro.re
 routeur-gs.adm.auro.re
+routeur-gs-backup.adm.auro.re
 unifi-gs.adm.auro.re
 radius-gs.adm.auro.re
+radius-gs-backup.adm.auro.re
 prometheus-gs.adm.auro.re
 #inexistant : ldap-replica-gs.adm.auro.re
 #inexistant : ldap-replica-gs-backup.adm.auro.re
 
+###############################################################################
+# Les Rives
+[rives_pve]
+thor.adm.auro.re
+
+
+
+
 
 ###############################################################################
 # Groups by location
@@ -164,6 +178,10 @@ edc_vm
 gs_pve
 gs_vm
 
+# everything at Les Rives
+[rives:children]
+rives_pve
+
 
 ###############################################################################
 # Groups by type
@@ -187,6 +205,7 @@ fleming_pve
 pacaterie_pve
 edc_pve
 gs_pve
+rives_pve
 
 
 ###############################################################################
diff --git a/network.yml b/network.yml
index 4b4a9dc..bca43c0 100755
--- a/network.yml
+++ b/network.yml
@@ -1,7 +1,7 @@
 #!/usr/bin/env ansible-playbook
 ---
 # Set up DHCP servers.
-- hosts: dhcp-*.adm.auro.re, !dhcp-aurore*.adm.auro.re,!dhcp-gs*.adm.auro.re
+- hosts: dhcp-*.adm.auro.re, !dhcp-aurore*.adm.auro.re
   vars:
     service_repo: https://gitlab.federez.net/re2o/dhcp.git
     service_name: dhcp
@@ -16,13 +16,13 @@
 
 
 # Deploy unbound DNS server (recursive).
-- hosts: dns-*.adm.auro.re,!dns-aurore*.adm.auro.re,!dns-gs*.adm.auro.re
+- hosts: dns-*.adm.auro.re,!dns-aurore*.adm.auro.re
   roles:
     - unbound
 
 
 # Déploiement du service re2o aurore-firewall et keepalived
-- hosts: ~routeur-(pacaterie|edc|fleming).*\.adm\.auro\.re
+- hosts: ~routeur-(pacaterie|edc|fleming|gs).*\.adm\.auro\.re
   roles:
     - router
 
diff --git a/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2 b/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
index f4150e7..cde8d25 100644
--- a/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
+++ b/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
@@ -43,12 +43,12 @@ subnet 10.{{ subnet_ids.users_wired }}.0.0 netmask 255.255.0.0 {
        option subnet-mask 255.255.0.0;
        option broadcast-address 10.{{ subnet_ids.users_wired }}.255.255;
        option routers 10.{{ subnet_ids.users_wired }}.0.{{ router_ip_suffix }};
-       option domain-name "fil.{{ apartment_block }}.auro.re";
+       option domain-name "fil.{{ apartment_block_dhcp }}.auro.re";
        option domain-search "auro.re";
 
        option domain-name-servers 10.{{ subnet_ids.users_wired }}.0.{{ dns_host_suffix_main }}, 10.{{ subnet_ids.users_wired }}.0.{{ dns_host_suffix_backup }}, {{ backup_dns_servers|join(', ') }};
 
-       include "/var/local/re2o-services/dhcp/generated/dhcp.fil.{{ apartment_block }}.auro.re.list";
+       include "/var/local/re2o-services/dhcp/generated/dhcp.fil.{{ apartment_block_dhcp }}.auro.re.list";
 
        deny unknown-clients;
 }
@@ -60,12 +60,12 @@ subnet 10.{{ subnet_ids.users_wifi }}.0.0 netmask 255.255.0.0 {
        option subnet-mask 255.255.0.0;
        option broadcast-address 10.{{ subnet_ids.users_wifi }}.255.255;
        option routers 10.{{ subnet_ids.users_wifi }}.0.{{ router_ip_suffix }};
-       option domain-name "wifi.{{ apartment_block }}.auro.re";
+       option domain-name "wifi.{{ apartment_block_dhcp }}.auro.re";
        option domain-search "auro.re";
 
        option domain-name-servers 10.{{ subnet_ids.users_wifi }}.0.{{ dns_host_suffix_main }}, 10.{{ subnet_ids.users_wifi }}.0.{{ dns_host_suffix_backup }}, {{ backup_dns_servers|join(', ') }};
 
-       include "/var/local/re2o-services/dhcp/generated/dhcp.wifi.{{ apartment_block }}.auro.re.list";
+       include "/var/local/re2o-services/dhcp/generated/dhcp.wifi.{{ apartment_block_dhcp }}.auro.re.list";
 
        pool {
             range 10.{{ subnet_ids.users_wifi }}.8.0 10.{{ subnet_ids.users_wifi }}.10.255;