CCNA Lab Console: Access List Lab - Block PING Traffic

An Irish record label - "Celtic Records" - has three stores networked using the schema below. Each store consists of one LAN and all routers are completely configured and in full working order both locally and across the serial links. However, the Network Manager - Mary Maguire - wants access control list statements created that will block PING traffic through the Sligo router while allowing all other traffic to pass.

Please complete the Network Manager's requirements using no more than three lines and apply where needed.

The routers have been configured with the following specifications:

The routers are named Sligo, Belfast and Dublin.
RIP is the routing protocol.
The clocking is provided on the Serial 0 interface.
The secret password on the all routers is "cisco".
The subnet mask on all interfaces is the default mask.

Host B

Inside Tip: Click on Host B to connect the Sligo router.

Don't forget -- write down the config(s) for each Lab along with a brief outline of the question before you attempt to do anything. Create your ACL statements and figure out where you will apply them before going near the CLI.

On this one - think "in" to the Sligo router - create and then apply to the two interfaces (close to the source of the inbound traffic) - E0 (LAN on Sligo) and S0 (Belfast and Dublin traffic). Remember that PING equates to ICMP.

See a similar example -- on blocking Telnet traffic.

Finally, it is always a smart thing to end with a "copy running-config startup-config" command to save your work, right?