Ethernet bridge tables is a firewalling tool to transparently filter network
traffic passing a bridge. The filtering possibilities are limited to link
layer filtering and some basic filtering on higher network layers.
This tool is the userspace control for the bridge and ebtables kernel
components (built by default in Fedora kernels).
The ebtables tool can be used together with the other Linux filtering tools,
like iptables. There are no known incompatibility issues.
Note that it is considered legacy upstream since nftables provides the same
functionality in a much newer code-base. To aid in migration, there is
ebtables-nft utility, a drop-in replacement for the legacy one which uses
nftables internally. It is provided by iptables-ebtables package.