# Listener configurations for Classic Load Balancers
<a name="using-elb-listenerconfig-quickref"></a>

The following table describes possible configurations for HTTP and HTTPS listeners for a Classic Load Balancer.


| Use case | Front-end protocol | Front-end options | Back-end protocol | Back-end options | Notes | 
| --- | --- | --- | --- | --- | --- | 
| Basic HTTP load balancer | HTTP | NA | HTTP | NA |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  | 
| Secure website or application using Elastic Load Balancing to offload SSL decryption | HTTPS | [SSL negotiation](elb-ssl-security-policy.md) | HTTP | NA |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  | 
| Secure website or application using end-to-end encryption | HTTPS | [SSL negotiation](elb-ssl-security-policy.md) | HTTPS | Back-end authentication |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  | 

The following table describes possible configurations for TCP and SSL listeners for a Classic Load Balancer.


| Use case | Front-end protocol | Front-end options | Back-end protocol | Back-end options | Notes | 
| --- | --- | --- | --- | --- | --- | 
| Basic TCP load balancer | TCP | NA | TCP | NA |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  | 
| Secure website or application using Elastic Load Balancing to offload SSL decryption | SSL | [SSL negotiation](elb-ssl-security-policy.md) | TCP | NA |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  | 
| Secure website or application using end-to-end encryption with Elastic Load Balancing | SSL | [SSL negotiation](elb-ssl-security-policy.md) | SSL | Back-end authentication |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-elb-listenerconfig-quickref.html)  |