I see, I update the list. For clarity only the enabled repositories.
repo-non-oss (15.6)
| Yes |
http://cdn.opensuse.org/distribution/leap/15.6/repo/non-oss
repo-oss (15.6)
| Yes |
http://cdn.opensuse.org/distribution/leap/15.6/repo/oss
update-backports (15.6)
| Yes | http://cdn.opensuse.org/update/leap/15.6/backports
update-non-oss (15.6)
| Yes | http://cdn.opensuse.org/update/leap/15.6/non-oss
update-oss (15.6)
| Yes | http://cdn.opensuse.org/update/leap/15.6/oss
update-sle (15.6)
| Yes | http://cdn.opensuse.org/update/leap/15.6/sle
repo-openh264 (15.6)
| Yes | http://codecs.opensuse.org/openh264/openSUSE_Leap
Update repository of openSUSE Backports
| Yes |
http://download.opensuse.org/update/leap/15.6/backports/
Update repository with updates from SUSE Linux Enterprise 15
| Yes | http://download.opensuse.org/update/leap/15.6/sle/
repo-non-free (15.6)
| Yes | https://download.nvidia.com/opensuse/leap/15.6
Cheers