NFS mount fails due to firewall maintenance
Applies to
- NFS
- ONTAP
- Firewall between NetApp and clients
Issue
- After a firewall maintenance, between NetApp and client, NFS mount suddenly fails.
- ONTAP reports:
"kernel: nfs: server <IP> not responding, still trying"
- In a packet trace, ONTAP gets a TCP SYN packet from the client on an already established session.