I'm not sure which edit you were referring to in the note you left on my talk:Cross page?
I'm sorry but I don't understand your comment. What about that edit were you referring to? You linked to an RFC that talks about CIDR for reverse DNS delegation and a non-AMPR case, but the edit was to a page specifically about AMPR and had nothing to do with reverse delegation.... The UCSD filter configuration is independent of all of that, right? Perhaps it would make more sense to move this conversation over to the http://wiki.ampr.org/wiki/User_talk:Ampr.org page?