ping -c 5 mirrors.cmich.edu
PING mirrors.cmich.edu (141.209.15.155) 56(84) bytes of data.
From outside.uta.edu (129.107.1.4) icmp_seq=2 Packet filtered

--- mirrors.cmich.edu ping statistics ---
5 packets transmitted, 0 received, +1 errors, 100% packet loss, time 4011ms

