SAP Note 1365796 - IPv4 Host name resolution on Failover Cluster Server 2008

Component : Windows -

Solution : https://service.sap.com/sap/support/notes/1365796 (SAP Service marketplace login required)

Summary :
In SAP environments utilizing Windows Server 2008 Failover Clustering, an issue may arise whereby the `ping -4 ` command returns an IP address from the 169.254.2.0 subnet assigned to the Microsoft Failover Cluster Virtual Adapter. This address is unsuitable for general communication as it is meant solely for internal cluster use and can disrupt inter-application reporting of IP addresses. The network adapter configuration within the OS's settings can't be altered via usual admin interfaces. To resolve, perform the specified `net virsh` and `netsh interface` commands in an elevated command prompt to adjust IPv6 prefix policies, ensuring the correct IP address output is restored.

Key words :
netsh interface ipv6 set prefix, 1/128                50 5netsh interface ipv6 add prefix, 1/128                50 5netsh interface ipv6 set prefix, 1/96                 40 4netsh interface ipv6 add prefix, 1/96                 40 4netsh interface ipv6 set prefix, 0/96          30 3netsh interface ipv6 add prefix, 0/96          30 3netsh interface ipv6 set prefix, /0                   20 2netsh interface ipv6 add prefix, /0                   20 2netsh interface ipv6 set prefix, 0/112 10 1netsh interface ipv6 add prefix

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