diff --git a/inventory/host_vars/armv7-test01.fedorainfracloud.org b/inventory/host_vars/armv7-test01.fedorainfracloud.org
index 990517efe0..8448d0af1b 100644
--- a/inventory/host_vars/armv7-test01.fedorainfracloud.org
+++ b/inventory/host_vars/armv7-test01.fedorainfracloud.org
@@ -1,7 +1,7 @@
 ---
 vmhost: vmhost-a64-cc01.rdu-cc.fedoraproject.org
 eth0_ip: 8.43.85.52
-nm: 255.255.254.0
+nm: 255.255.255.0
 gw: 8.43.85.254
 dns: 8.8.8.8
 ks_url: http://38.145.60.16/repo/rhel/ks/kvm-fedora
diff --git a/inventory/host_vars/armv7-test02.fedorainfracloud.org b/inventory/host_vars/armv7-test02.fedorainfracloud.org
index 980c9da35c..8420bb2794 100644
--- a/inventory/host_vars/armv7-test02.fedorainfracloud.org
+++ b/inventory/host_vars/armv7-test02.fedorainfracloud.org
@@ -1,7 +1,7 @@
 ---
 vmhost: vmhost-a64-cc01.rdu-cc.fedoraproject.org
 eth0_ip: 8.43.85.53
-nm: 255.255.254.0
+nm: 255.255.255.0
 gw: 8.43.85.254
 dns: 8.8.8.8
 ks_url: http://38.145.60.16/repo/rhel/ks/kvm-fedora
diff --git a/inventory/host_vars/cloud-noc01.fedorainfracloud.org b/inventory/host_vars/cloud-noc01.fedorainfracloud.org
index 9b0efc0f25..9bae4d57c4 100644
--- a/inventory/host_vars/cloud-noc01.fedorainfracloud.org
+++ b/inventory/host_vars/cloud-noc01.fedorainfracloud.org
@@ -5,7 +5,7 @@ datacenter: cloud
 dns: 8.8.8.8
 eth0_ip: 38.145.48.10
 gw: 38.145.49.254
-nm: 255.255.254.0
+nm: 255.255.255.0
 eth1_ip: 172.23.1.1
 freezes: false
 resolvconf: "{{ files }}/resolv.conf/cloud-noc01.fedorainfracloud.org"
diff --git a/inventory/host_vars/storinator01.rdu-cc.fedoraproject.org b/inventory/host_vars/storinator01.rdu-cc.fedoraproject.org
index 5473668b91..56e7536078 100644
--- a/inventory/host_vars/storinator01.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/storinator01.rdu-cc.fedoraproject.org
@@ -15,7 +15,7 @@ gw: 8.43.85.254
 dns: 8.8.8.8
 
 eth0_ip: 8.43.85.62
-eth0_nm: 255.255.254.0
+eth0_nm: 255.255.255.0
 eth2_ip: 172.23.5.25
 eth2_nm: 255.255.255.0
 
diff --git a/inventory/host_vars/vmhost-p08-copr01.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-p08-copr01.rdu-cc.fedoraproject.org
index e003e11845..094bf89596 100644
--- a/inventory/host_vars/vmhost-p08-copr01.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-p08-copr01.rdu-cc.fedoraproject.org
@@ -6,7 +6,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.55
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 br1_ipv4: 172.23.5.101
 br1_ipv4_nm: 24
diff --git a/inventory/host_vars/vmhost-x86-cc05.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-cc05.rdu-cc.fedoraproject.org
index fbd91fe492..cdb28d42be 100644
--- a/inventory/host_vars/vmhost-x86-cc05.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-cc05.rdu-cc.fedoraproject.org
@@ -13,7 +13,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.84
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 br1_ipv4: 172.23.1.1
 br1_ipv4_nm: 24
diff --git a/inventory/host_vars/vmhost-x86-cc06.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-cc06.rdu-cc.fedoraproject.org
index 7cdc7e9493..10605a25e6 100644
--- a/inventory/host_vars/vmhost-x86-cc06.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-cc06.rdu-cc.fedoraproject.org
@@ -13,7 +13,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.85
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 br1_ipv4: 172.23.1.2
 br1_ipv4_nm: 24
diff --git a/inventory/host_vars/vmhost-x86-copr01.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-copr01.rdu-cc.fedoraproject.org
index bb079c2590..0fdbff9617 100644
--- a/inventory/host_vars/vmhost-x86-copr01.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-copr01.rdu-cc.fedoraproject.org
@@ -6,7 +6,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.57
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 
 has_ipv6: yes
diff --git a/inventory/host_vars/vmhost-x86-copr02.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-copr02.rdu-cc.fedoraproject.org
index 12a99f206a..67d6a43723 100644
--- a/inventory/host_vars/vmhost-x86-copr02.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-copr02.rdu-cc.fedoraproject.org
@@ -6,7 +6,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.58
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 
 has_ipv6: yes
diff --git a/inventory/host_vars/vmhost-x86-copr03.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-copr03.rdu-cc.fedoraproject.org
index 33c79b7691..160efaa34f 100644
--- a/inventory/host_vars/vmhost-x86-copr03.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-copr03.rdu-cc.fedoraproject.org
@@ -6,7 +6,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.59
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 
 has_ipv6: yes
diff --git a/inventory/host_vars/vmhost-x86-copr04.rdu-cc.fedoraproject.org b/inventory/host_vars/vmhost-x86-copr04.rdu-cc.fedoraproject.org
index 8f7fbd7e82..c0d9555728 100644
--- a/inventory/host_vars/vmhost-x86-copr04.rdu-cc.fedoraproject.org
+++ b/inventory/host_vars/vmhost-x86-copr04.rdu-cc.fedoraproject.org
@@ -6,7 +6,7 @@ dns: 8.8.8.8
 
 has_ipv4: yes
 br0_ipv4: 8.43.85.60
-br0_ipv4_nm: 23
+br0_ipv4_nm: 24
 br0_ipv4_gw: "{{ gw }}"
 
 has_ipv6: yes