Hi Marco, /etc/ethertypes is obtained directly from upstream (ebtables), no changes are made to its packaging in Debian and I suposse that the same file has not been modified for years, because ebtables is not under active development.
It's fine to remove historical entries, especially including ethertype file in a package such as netbase. > Also, where do the names in the first column come from, since they are > not in the IANA registry? > I don't know, but they're used by ebtables to refer to ethertypes by name like it's shown in the original message of this bug. Regards, Alberto