For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc/openSUSE_Leap_15.6/network:dns-oarc.repo
zypper refresh
zypper install dnswire
For openSUSE Leap 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc/openSUSE_Leap_15.5/network:dns-oarc.repo
zypper refresh
zypper install dnswire
For SLE 15 SP6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc/SLE_15_SP6/network:dns-oarc.repo
zypper refresh
zypper install dnswire
For SLE 15 SP5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc/SLE_15_SP5/network:dns-oarc.repo
zypper refresh
zypper install dnswire