What does it do?
Pinger is a very simple implementation of the ICMP (Internet Control Message Protocol) protocol. It allows you to test connectivity and response times across a network or the Internet.
How does it work?
Pinger sends a small string of data to a target host a set number of times at a set interval. It will then count the time it takes for that packet to return from the target and if it takes longer than a set timeout value, it is discarded.
How do I use it?
Note: Because ICMP sockets can only be opened by root-processes, you can only use the "legacy" ping tool (shown on the left) when authenticated. If you aren't authenticated, you will only be able to use the text-based ping tool. See Using Net Tool Box for more information on authentication.
In Net Tool Box, click the "Pinger" button on
the toolbar. When the Ping window appears, type the DNS name or IP address
of the target in the "Target" field. If you want to change
the number of times the host is pinged, change the "Count"
field to your preferred value. Also, if you know your network is particularly
slow or fast, change the "Timeout" value as required. Also,
if you want to increase or decrease the interval between pings, change
the "Interval" field.
ICMP packets cannot go backwards through a NAT (Network Address Translation)
firewall or router. That means that if the address you are trying to
ping has an IP starting with either "10.x.x.x" or "192.168.x.x" and
you are not on the same network, the pings will always fail.
© Charlie Boisseau 2005