For SLE 12 SP5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dassit:opsi:opsi4/SLE_12_SP5/home:dassit:opsi:opsi4.repo
zypper refresh
zypper install wsusoffline
For SLE 12 SP4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dassit:opsi:opsi4/SLE_12_SP4/home:dassit:opsi:opsi4.repo
zypper refresh
zypper install wsusoffline
For SLE 12 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dassit:opsi:opsi4/SLE_12/home:dassit:opsi:opsi4.repo
zypper refresh
zypper install wsusoffline
For SLE 11 SP4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dassit:opsi:opsi4/SLE_11_SP4/home:dassit:opsi:opsi4.repo
zypper refresh
zypper install wsusoffline