--- linux-2.6.0/net/xfrm/xfrm_algo.c	2004-01-08 01:29:52.067261651 +0100
+++ linux-2.6.0.orig/net/xfrm/xfrm_algo.c	2004-01-08 01:28:38.668690081 +0100
@@ -85,7 +85,7 @@ static struct xfrm_algo_desc aalg_list[]
 
 	.uinfo = {
 		.auth = {
-			.icv_truncbits = 128,
+			.icv_truncbits = 96,
 			.icv_fullbits = 256,
 		}
 	},