Hi Pablo, On Wed, Apr 26, 2023 at 09:58:44PM +0200, Pablo Neira Ayuso wrote: [...] > My proposal: Thanks for returning to this. Your approach requires to define a minimum version from which on forward-compat is guaranteed. I was trying to avoid this requirement though so things would work for "unknown user space". Currently, the only offending extension is ebt_among since it doesn't exist (and never did) in non-native form. If I implement among extension parsing (even in non-functional form), my original approach would work. This also means having a minimum version for full compat, but it affects ebtables (actually, use of ebt_among) only. Cheers, Phil
