The repository is the same for any Linux distribution you use.
This is how to add the RPM repository of Avira Linux products into the Software Management:

SuSE:

• Method 1:
  
  
  1. Start YaST and click Software - Software Repository - Add
  2. Fill in a name for the repository and insert the following URL(http):
     
     dl1.pro.antivir.de/package/rpm_repository/
  
  
  
  3. Press Next and the package meta data will be downloaded.


• Method 2:
  You can use the following command in the command line to add the repository:
  
  zypper ar http://dl1.pro.antivir.de/package/rpm_repository/ avira-rpm
  
  


• Method 3:
  You can also access the repository by adding the Zypper source file.
  Download the file below and copy it in the /etc/zypp/repos.d directory:
  Download avira_redhat.repo

After adding the repository using one of the above methods, go to YaST - Software Management and search for avira. It will display all Avira packages available for installation:

Red Hat:

You can add the source file on Red Hat, too. Download the YUM file below and copy it in the /etc/yum.repos.d directory:
Download avira_suse.repo