Batman-adv 2021.2 released

Added by Sven Eckelmann almost 3 years ago

Aug 20th, 2021. Today the B.A.T.M.A.N. team publishes the August 2021 update to batman-adv, batctl and alfred! The multicast support in batman-adv can now utilize the Multicast Router Discovery of the Linux bridge to detect IPv4/IPv6 multicast listeners and routers. The broadcast packet handling was also redesigned to reduce the latency and to prepare the necessary infrastructure for interfaces specific handling. Also several bugfixes and code cleanups are included in this version.

As the kernel module always depends on the Linux kernel it is compiled against, it does not make sense to provide binaries on our website. As usual, you will find the signed tarballs in our download section:


Thanks to all people sending in patches:

and to all those that supported us with good advice or rigorous testing:


  • support latest kernels (4.4 - 5.14)
  • coding style cleanups and refactoring
  • add MRD + routable IPv4 multicast with bridges support
  • rewrite of broadcast queuing
  • bugs squashed:
    • avoid kernel warnings on timing related checks


  • manpage cleanups
  • coding style cleanups and refactoring


  • manpage cleanups

Happy routing,

The B.A.T.M.A.N. team