Use Packet Tracer to complete this activity. Write a named ACL to deny the host access to the FTP server. Apply the ACL to the most effective interface on the router.

FTP Denied

Objective

Implement packet filtering using extended IPv4 ACLs according to networking requirements (to include named and numbered ACLs).

Scenario

It was recently reported that viruses are on the rise within your small- to medium-sized business network. Your network administrator has been tracking network performance and has determined that one particular host is constantly downloading files from a remote FTP server. This host just may be the virus source perpetuating throughout the network!

Use Packet Tracer to complete this activity. Write a named ACL to deny the host access to the FTP server. Apply the ACL to the most effective interface on the router.

WE ARE NOT BLOCKING FTP ACCESS, WE ARE JUST BLOCKING 1 PC FROM GETTING TO THE OTHER PC THAT HAPPENS TO BE AN FTP SERVER.

To complete the physical topology, you must use:

One PC host station

Two switches

One Cisco 1941 series Integrated Services Router

One server

Using the Packet Tracer text tool, record the ACL you prepared. Validate that the ACL works to deny access to the FTP server by trying to access the FTP servers address. Observe what happens while in simulation mode.