For openSUSE Leap 42.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ighvh:branches:science:EtherLab/openSUSE_Leap_42.2/home:ighvh:branches:science:EtherLab.repo
zypper refresh
zypper install kernel-macros
For openSUSE Leap 42.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ighvh:branches:science:EtherLab/openSUSE_Leap_42.1/home:ighvh:branches:science:EtherLab.repo
zypper refresh
zypper install kernel-macros
For openSUSE 13.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ighvh:branches:science:EtherLab/openSUSE_13.2/home:ighvh:branches:science:EtherLab.repo
zypper refresh
zypper install kernel-macros