I have som suggestions to functionality and
configuration.
1. Setting the timeout, ping count, packet size, time
to live for each address you want to ping.
2. Setting the time intervale between measuring on
each address.
3. The output HTML file could support a Cascading
Style Sheet for user configurable format of HTML
output.
4. Output date to the log file for better
possibilities of handling the log data like making
statistics.
5. User configurable field delimiter, some countries
handle comma as decimal delimiter.
6. Configurable html output aka what fields should on
the html output.
May be a confguration and statistic web interface
should be consideret.