jlewis@lewis.org writes:

I thought they had put all reserved IP space on the RBL to prevent it from being announced and used by spammers, then unannounced to make it harder to track the source.

Yup. And every time IANA hands another /8 to some RIR, MAPS has to unblock it. Has that happened with 98.0.0.0/8? Doesn't appear so: IANA (RESERVED-8) Netname: RESERVED-8 Netblock: 96.0.0.0 - 126.255.255.255 Coordinator: Internet Assigned Numbers Authority (IANA-ARIN) iana@IANA.ORG (310) 823-9358 Fax- (310) 823-8649 Record last updated on 03-Nov-1998. Database last updated on 20-Jul-2000 06:58:05 EDT. I've thought sometimes that a BGP feed that only included iana-reserved and rfc1918 space, not spammers or other policy violators, would be a popular thing. I've also thought that if routers could filter based on lookup up source addresses in a BGP-made RIB, rather than just destination addresses, that the whole filtering-by-remote-control industry would appreciate the hell out of it. I'm pretty sure that both the 12016 and M160 have the hardware it would take to do this at wire speed, but I'm also pretty sure that the market for this feature is perceived by both vendors as "small."