diff --git a/on-premise/main/calico_v3.28.2/custom-resources.yaml b/on-premise/main/calico_v3.28.2/custom-resources.yaml
index 32d9552..e853885 100644
--- a/on-premise/main/calico_v3.28.2/custom-resources.yaml
+++ b/on-premise/main/calico_v3.28.2/custom-resources.yaml
@@ -9,9 +9,9 @@ spec:
   calicoNetwork:
     ipPools:
     - name: default-ipv4-ippool
-      blockSize: 26
+      blockSize: 24
       cidr: 10.10.0.0/16
-      encapsulation: VXLANCrossSubnet
+      encapsulation: VXLANCrossSubnet         # openstack 에서는 VXLAN을 사용해야해안다 byljh
       natOutgoing: Enabled
       nodeSelector: all()
   registry: reg.inje-private.com