public Builder setIpAddressRange(java.lang.String value) {
        if (value == null) {
          throw new NullPointerException();
        }
        ipRangeCase_ = 2;
        ipRange_ = value;
        onChanged();
        return this;
      }
<pre>
An IP address range in the CIDR format. For example: `10.0.0.0/24`.
</pre>

<code>string ip_address_range = 2;</code>

@param value The ipAddressRange to set.
@return This builder for chaining.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/ExternalAccessRule.java