diff --git a/web/src/pages/network/NetworkEditForm/NetworkEditForm.tsx b/web/src/pages/network/NetworkEditForm/NetworkEditForm.tsx
index 99c3d1adbd..8893c7f2db 100644
--- a/web/src/pages/network/NetworkEditForm/NetworkEditForm.tsx
+++ b/web/src/pages/network/NetworkEditForm/NetworkEditForm.tsx
@@ -157,9 +157,9 @@ export const NetworkEditForm = () => {
               Validate.any(
                 val,
                 [
-                  Validate.CIDRv4,
+                  (v: string) => Validate.CIDRv4(v, true),
                   Validate.IPv4,
-                  Validate.CIDRv6,
+                  (v: string) => Validate.CIDRv6(v, true),
                   Validate.IPv6,
                   Validate.Empty,
                 ],
diff --git a/web/src/pages/wizard/components/WizardNetworkConfiguration/WizardNetworkConfiguration.tsx b/web/src/pages/wizard/components/WizardNetworkConfiguration/WizardNetworkConfiguration.tsx
index 2de3308590..a58be23fda 100644
--- a/web/src/pages/wizard/components/WizardNetworkConfiguration/WizardNetworkConfiguration.tsx
+++ b/web/src/pages/wizard/components/WizardNetworkConfiguration/WizardNetworkConfiguration.tsx
@@ -149,9 +149,9 @@ export const WizardNetworkConfiguration = () => {
               Validate.any(
                 val,
                 [
-                  Validate.CIDRv4,
+                  (v: string) => Validate.CIDRv4(v, true),
                   Validate.IPv4,
-                  Validate.CIDRv6,
+                  (v: string) => Validate.CIDRv6(v, true),
                   Validate.IPv6,
                   Validate.Empty,
                 ],
diff --git a/web/src/shared/validators.ts b/web/src/shared/validators.ts
index 23b24bbfc0..b0e492f3a7 100644
--- a/web/src/shared/validators.ts
+++ b/web/src/shared/validators.ts
@@ -65,11 +65,11 @@ export const Validate = {
     }
     return true;
   },
-  CIDRv4: (ip: string): boolean => {
+  CIDRv4: (ip: string, allow_zero: boolean = false): boolean => {
     if (!ipv4WithCIDRPattern.test(ip)) {
       return false;
     }
-    if (ip.endsWith('/0')) {
+    if (ip.endsWith('/0') && !allow_zero) {
       return false;
     }
     if (!ipaddr.IPv4.isValidCIDR(ip)) {
@@ -77,8 +77,8 @@ export const Validate = {
     }
     return true;
   },
-  CIDRv6: (ip: string): boolean => {
-    if (ip.endsWith('/0')) {
+  CIDRv6: (ip: string, allow_zero: boolean = false): boolean => {
+    if (ip.endsWith('/0') && !allow_zero) {
       return false;
     }
     if (!ipaddr.IPv6.isValidCIDR(ip)) {