For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc:prereleases/openSUSE_Leap_15.6/network:dns-oarc:prereleases.repo
zypper refresh
zypper install dnswire
For SLE 15 SP7 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:dns-oarc:prereleases/SLE_15_SP7/network:dns-oarc:prereleases.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:prereleases/SLE_15_SP6/network:dns-oarc:prereleases.repo
zypper refresh
zypper install dnswire