ping -c 5 isectestbed.uta.edu
PING isectestbed.uta.edu (129.107.118.27) 56(84) bytes of data.
From uta-vl427-demarc.dfw.tx-learn.net (208.76.227.177) icmp_seq=1 Packet filtered
From uta-vl427-demarc.dfw.tx-learn.net (208.76.227.177) icmp_seq=2 Packet filtered
From uta-vl427-demarc.dfw.tx-learn.net (208.76.227.177) icmp_seq=3 Packet filtered
From uta-vl427-demarc.dfw.tx-learn.net (208.76.227.177) icmp_seq=4 Packet filtered
From uta-vl427-demarc.dfw.tx-learn.net (208.76.227.177) icmp_seq=5 Packet filtered

--- isectestbed.uta.edu ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4000ms

