# wget http://www.thc.org/releases/thc-ipv6-1.8.tar.gz
# tar xzf thc-ipv6-1.8.tar.gz
# cd thc-ipv6-1.8
~/thc-ipv6-1.8# sudo apt-get install libssl-dev
~/thc-ipv6-1.8# make
~/thc-ipv6-1.8# sudo ./alive6 eth0
Warning: unprefered IPv6 address had to be selected
Alive: fe80::20c:29ff:feec:1a8d
Alive: fe80::20c:29ff:fef5:b6b0
Alive: fe80::20c:29ff:fed9:71ca
Alive: fe80::20c:29ff:fe49:51bf
Alive: fe80::20c:29ff:fe46:8180
[...]
Found 19 systems alive