icies. However, strongly authenticated identity is not required
for using authorization. Istio authorization works with or without identities. If you are working with a legacy system,
you may not have mutual TLS or JWT authentication setup for your mesh. In this case, the only way to identify the client is, for example,
through IP. You can still use Istio authorization to control which IP addresses or IP ranges are allowed to access your service.</p><h2 id=examples>Examples</h2><p>The <a href=/v1.21/docs/ta