All hello.
Current configuration:
SQL Server of group of availability (AG) 2012 on Windows Server 2012 consisting of two nodes is developed. On each node two network interfaces, one for public access, the second for interconnect (heartbeat) are used.
First node:
Eth1 10.16.0.41
Eth2 192.168.10.1
Second node:
Eth1 10.16.0.42
Eth2 192.168.10.2
The second interface with IP 192.168.10.1 and 192.168.10.2 is private connection, allocated for internal cluster communication.
The administrator of a network noticed strange circulation of a traffic, and suggested it to block:
there is a traffic with IP 10.16.0.41 under a cluster user to the internal address 192.168.10.1 with UDP of port 137 on port 137 according to the netbios-ns appendix, in the same way addresses 10.16.0.42 on 192.168.10.2
Question:
why he addresses to himself?