Learn network 11--extended access control list via Cisco emulator Cisco PACKET Tracer

There are two types of access control protocol, the standard access control "mainly for IP address filtering" and extended access control "mainly based on port protocol filtering"

This time, let's take a look at the Extended access control list

Extended access control lists allow you to set up connection control based on ports and so on, this time to join a Web server, and then to learn about extended access control by configuring port-based access control

Configuration ideas

1 Configure the sub-interface of the router Xia Lian switch physical interface, and configure the IP address under the sub-interface. Configure the physical interface address that Router 1 connects to another router 2

2 Configure switch, new VLAN, configure access interface with trunk link

3 Configure the IP address of the PC, specify the address that the gateway configures under the router sub-interface

4 Configure the interface address of Router 2 and the IP address of the server

5 Configure static routing to enable network interoperability

6 new ACL extension policy in Router 2, specifying host and port

7 The ACL takes effect under the port of the Router 2 Xia Lian server

Network topology

1 Configuring Router 1 single-arm routing, establishing sub-interfaces and configuring IP addresses, etc.

2 Configuring the Switch's VLAN and port type

3 Configuring the IP address of the PC

4 Configuring the interface address for Router 2

5 Configure static routes to communicate properly between networks

6 Configure the ACL policy on Router 2 to allow PC1 to access the server's Web service, but does not allow ping server addresses

7 to Router 2 to make the policy effective under the interface with the server

Validation actions

Learn network 11--extended access control list via Cisco emulator Cisco PACKET Tracer