Hi,
Form a client, you can identify established connections via the command netstat
C:\Users\Administrator>netstat -an
Active Connections
TCP 192.168.6.11:139 0.0.0.0:0 LISTENING
TCP 192.168.6.11:3389 192.168.6.254:49441 ESTABLISHED
TCP 192.168.6.11:52870 192.168.6.117:445 ESTABLISHED
For example, the bold entry identifies that we have a CIFS connection (port 445) from client 192168.6.11 to a LIF with the IP 192.168.6.117
A similar command is available on the Netapp: network connections active show. You can filter for cifs-srv, nfs, etc with the -service cifs-srv switch .
Next, you can identify the LIF and the SVM on the storage controller which is using that IP 192.168.6.117 address via
::> network interface show -address 192.168.6.117
As mentioned in the other reply, you can identify the MAC address and the port used via net port show
Hope that helps
Florian