-.\" $OpenBSD: hifn.4,v 1.4 2000/04/05 12:37:33 jason Exp $
+.\" $OpenBSD: hifn.4,v 1.5 2000/04/14 06:00:20 deraadt Exp $
.\"
.\" Copyright (c) 2000 Theo de Raadt
.\" All rights reserved.
.Sh SEE ALSO
.Xr crypt 3 ,
.Xr ipsec 4
+.Sh CAVEATS
+The Hi/fn 9751 shares the same PCI id. This chip is basically a 7751, but
+with the cryptographic functions missing. Instead, the 9751 is only capable
+of doing compression. Since we do not currently attempt to use either of
+these chips to do any compression, the 9751-based cards are not useful.
.Sh HISTORY
The
.Nm