ipmaddr -V (return code: 5)
net-tools 1.60
ipmaddr 1.1
Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
ipmaddr --help (return code: 255)
Usage: ipmaddr [ add | del ] MULTIADDR dev STRING
ipmaddr show [ dev STRING ] [ ipv4 | ipv6 | link | all ]
ipmaddr -V | -version