Invalid IP address for NFS auditing

Hi all,

We use CIFS and NFS audit function (using SLAG) to collect file access events (read,write, delete...). We used this procedure :

It works well for CIFS file access, but for NFS file access, the IP adress shown in audit logs is invalid : source IP appears as  :

We made several tests (on different filers and qtrees) and each time the issue is the same : an invalid IP address wich is not exploitable

Any suggestions to solve this issue ?

Thx for your help