On 02/26/2018 03:25 PM, Christian Kuhtz via NANOG wrote:
A little difficult to say what this without knowing what 13.67.59.89 actually is. If this is an Azure deployment, ReverseFqdn needs to be populated on the Public IP address resource. Please take a look herehttps://docs.microsoft.com/en-us/azure/dns/dns-reverse-dns-for-azure-service...
Nope. NetRange: 13.64.0.0 - 13.107.255.255 CIDR: 13.64.0.0/11, 13.96.0.0/13, 13.104.0.0/14 NetName: MSFT NetHandle: NET-13-64-0-0-1 Parent: NET13 (NET-13-0-0-0-0) NetType: Direct Assignment OriginAS: Organization: Microsoft Corporation (MSFT) RegDate: 2015-03-26 Updated: 2015-03-26 OrgName: Microsoft Corporation OrgId: MSFT Address: One Microsoft Way City: Redmond StateProv: WA PostalCode: 98052 Country: US RegDate: 1998-07-09 Updated: 2017-01-28 Comment: For routing, peering or DNS issues, please Comment: contact: Comment: * IOC@microsoft.com