Arduino + Ethernet Shield how to check the availability of servers?

Question

Arduino

Can you please tell me how to implement a check of servers in the local network for availability (ping) with activity display on LEDs using Arduino in conjunction with the Ethernet Shield W5100? Maybe there are already ready-made sketches?

Answer 1

Here is the ICMP library

Answer 2

Can you tell me how the code will look like using this library for 2 or more LEDs? I tried to figure it out, but something does not work out.