we have a 2node sles10.3 + oes2 cluster with one volume ("vol1").

I ran a wireshark capture from a Windows Client (running Novell Client) and saw that I get a lot of IP Checksum errors on NCP (info: Obtain File or Subdirectory Information) when I browse the files on vol1.

The error says in the IP section:

Header checksum: 0x0000 [incorrect, should be 0x5dd6 (maybe caused by "IP checksum offload"?)]