Looks like I typo'd the third octet. 2011/9/27 Keegan Holley <[email protected]>
> it looks like ATT still answers the queries. I'd assume that any changes > would have to be authorized by the customer though. Why not just call > Siemens Medical? > > ; <<>> DiG 9.6.0-APPLE-P2 <<>> -x 12.54.91.1 > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21619 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;1.91.54.12.in-addr.arpa. IN PTR > > ;; AUTHORITY SECTION: > 54.12.in-addr.arpa. 900 IN SOA xbru.br.ns.els-gms.att.net. > rm-hostmaster.ems.att.com. 1179 86400 10000 600000 172800 > > > > > 2011/9/27 Mike Gatti <[email protected]> > >> Hello Nanog Members, >> >> We have been having some issue doing reverse lookups for ip's in the >> 12.54.94.0/23 prefix. We know that this block is assigned to AT&T and >> AT&T has assigned that block to Siemens Medical (based on whois queries). We >> are now trying to find out who would be the authoritative DNS server that >> would resolve PTR queries for these IP addresses. Would someone from AT&T >> (or Siemens) or someone that has that info please contact me offline to >> discuss? >> >> Thanks Everyone, >> -- >> Michael Gatti >> cell.949.735.5612 >> [email protected] >> (UTC-8) >> >> >> >> >> >> >
