The following is an example of the udpstat.d script,
Here we run udpstat for a few seconds. Firstly, we run a "spray" command
outbound, followed by a spray inbound. Both can be identified in the
output below,
UDP_out UDP_outErr UDP_in UDP_inErr UDP_noPort
0 0 0 0 1
0 0 0 0 2
0 0 0 0 0
1165 0 2 0 0
0 0 0 0 0
0 0 0 0 2
3 0 1166 0 1
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
^C
Here we run udpstat.d while an outbound DNS lookup is performed using
"nslookup",
UDP_out UDP_outErr UDP_in UDP_inErr UDP_noPort
0 0 0 0 1
0 0 0 0 1
1 0 1 0 0
0 0 0 0 0
0 0 0 0 3
^C
Little output is observed as this tracks datagrams not bytes. There is
one outbound and one inbound datagram.