nowadays, i'd simply put them all on the same /24 which you simply announce on different pops
tcp/zonetransfer not working reliably is no longer a problem as you simply retreive those directly from the database over a seperate ip, no more old-fashioned bind related crap.
tcp/zonetransfer can also be configured to run off of a different IP address, for example, the native IP of the box. This works just fine. In BIND, you're looking for transfer-source ${qaddr} port ${qport}; IIRC. ... JG -- Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net "We call it the 'one bite at the apple' rule. Give me one chance [and] then I won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN) With 24 million small businesses in the US alone, that's way too many apples.