It currently says: A name server MAY include more than one ZONEVERSION option in the response if it supports multiple TYPEs. A name server MUST NOT include more than one ZONEVERSION option for a given TYPE.
Here is a real life example from my server sdn.iecc.com: ;; QUESTION SECTION: ;com.ws.sp.am. IN A ;; ANSWER SECTION: ws.sp.am. 300 IN DNAME whois.services.net. com.ws.sp.am. 300 IN CNAME com.whois.services.net. com.whois.services.net. 300 IN CNAME whois.verisign-grs.com. The query is for com.ws.sp.am, which is a DNAME in ws.sp.am which points to a name in whois.services.net which is another CNAME. Both zones are on the same server, so it answers for both. In this case you can tell that the first CNAME is invented from the DNAME, but imagine if the first CNAME was actually in the ws.sp.am zone. If you only get one CNAME version response, which one is it, and how can the client tell which one it refers to? Or if you really mean that there should be one response per zone rather than one per RRTYPE, how do you match them up? R's, John _______________________________________________ DNSOP mailing list -- dnsop@ietf.org To unsubscribe send an email to dnsop-le...@ietf.org
