[8209] in Athena Bugs
AIX 3.1 doesn't use UDP checksums for NFS
daemon@ATHENA.MIT.EDU (John Carr)
Sun Sep 15 16:25:17 1991
To: bugs@ATHENA.MIT.EDU
Cc: jis@ATHENA.MIT.EDU
Date: Sun, 15 Sep 91 16:25:52 EDT
From: John Carr <jfc@ATHENA.MIT.EDU>
AIX 3.1 doesn't use UDP checksums for NFS client packets. It does use udp
checksums for some things (for example, the portmapper and the AFS bos
server). I don't know how it decides when to use checksums; it might depend
on whether the socket was created by the kernel or a user level program.
Someone with AIX 3.1 source access should check and find out how to turn on
UDP checksums for NFS.
I did most of this testing using a public configuration RS/6000 (splat) so
this probably matches what we have deployed.
