The Spamhaus DROP list (Don’t Route or Peer) is still awaiting it’s BGP feed for network providers. So in the meantime, I’ve knocked up a little PHP script that downloads the DROP list from Spamhaus and spits out either a list of IPtables rules or a Cisco access control list.
View Source: http://www.potato-people.com/code/misctools/spamhausdrop.phps
Download: http://www.potato-people.com/code/misctools/spamhausdrop.tar.gz