Upstream recently received full among match support by making use of concatenated ranges support in nftables:
Author: Phil Sutter <email@example.com>
Date: Thu Feb 13 17:49:53 2020 +0100
ebtables: among: Support mixed MAC and MAC/IP entries
Powered by Stefano's support for concatenated ranges, a full among match
replacement can be implemented. The trick is to add MAC-only elements as
a concatenation of MAC and zero-length prefix, i.e. a range from
0.0.0.0 till 255.255.255.255.
Although not quite needed, detection of pure MAC-only matches is left in
place. For those, no implicit 'meta protocol' match is added (which is
required otherwise at least to keep nft output correct) and no concat
type is used for the set.
Signed-off-by: Phil Sutter <firstname.lastname@example.org>
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (iptables bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.