What is the purpose for this besides resolving name-based reverse lookups?
Resolving the reverse lookups IS the reason they need the nameservers - how else do you reckon queries on one of your IPs would end up finding the correct answer? In the same manner that you tell your domain registrar where to find nameservers for that domain, you're telling ARIN what servers can handle a query for [your-ips].IN-ADDR.ARPA
Are there any definitive guides out there on how this works (besides the ARIN site)?
On setting up nameservers? Googling 'configuring BIND' will lead you on your way, unless you're already using a different nameserver daemon. As far as I know there are no ARIN-specific requirements to it. Cheers, -Jack Carrozzo
I know this is really basic stuff but I don't know it and have never needed to know it until now.
Thanks
-- __________________________________ James Martin jamesmartin@ieee.org