Hi Karyn, rfc2317 (which defines classless reverse) doesn't break it (although it is not explicit on this point) - rfc1912 only requires that the FQHN returned from a PTR record matches an A record. Going the other way - finding the PTR record itself via a CNAME - is not a violation. As an aside, rfc2137 unfortunately *does* allow the final delegate to pollute external resolvers with incorrect SOA records for the octet-boundary parent zone. That's just a typical DNS hazard, of course. -[ Joshua Goodall ]----------------------------------------------- -[ IP Systems Architect ]---------------- Cook, Geek, Lover ------ -[ joshuag@interxion.com ]--------------- joshua@roughtrade.net -- On Fri, 18 Aug 2000, Karyn Ulriksen wrote:
What about when you're setting up ARPA entries referring to CIDR allocations?
as in ...
1.8.5.10.in-addr.arpa. 86400 IN CNAME 1.0/24.8.5.10.in-addr.arpa.
Somethings got to give there. I know that you could say well, just put the hostname instead of the target listed above, but the above is often used to delegate ARPA for subnets to downstreams...
Karyn
RGDS GARY -------------------------------------------------------------- ------------- Gary E. Miller Rellim 20340 Empire Ave, Suite E-3, Bend, OR 97701 gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676