diff --git a/mmv1/products/redis/Instance.yaml b/mmv1/products/redis/Instance.yaml
index b32431ff2aaa..73ee65ef0b11 100644
--- a/mmv1/products/redis/Instance.yaml
+++ b/mmv1/products/redis/Instance.yaml
@@ -306,6 +306,9 @@ properties:
       unique and non-overlapping with existing subnets in an authorized
       network.
     input: true
+    # In some situations the returned IP range may not match the sent value
+    # but will be a subset of the range.
+    ignore_read: true
   - !ruby/object:Api::Type::Enum
     name: tier
     description: |