Description:

The iputils package contains ping, a basic networking tool. The ping
command sends a series of ICMP protocol ECHO_REQUEST packets to a
specified network host and can tell you if that machine is alive and
receiving network traffic.

ipv6calc is a small utility which formats and calculates IPv6 addresses in
different ways. It extends the existing address detection on IPv6 initscript
setup or make life easier in adding reverse IPv6 zones to DNS
or using in DNS queries like
nslookup -q=ANY `ipv6calc -r 3ffe:400:100:f101::1/48`
See also here for more details: http://www.bieringer.de/linux/IPv6/