diff -urN ./vpnclient.orig/frag.c ./vpnclient/frag.c
--- ./vpnclient.orig/frag.c	2005-11-22 10:52:00.000000000 +0100
+++ ./vpnclient/frag.c	2006-11-21 09:26:27.579249764 +0100
@@ -1,4 +1,4 @@
-#include <linux/config.h>
+#include <linux/autoconf.h>
 #include <linux/version.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
diff -urN ./vpnclient.orig/interceptor.c ./vpnclient/interceptor.c
--- ./vpnclient.orig/interceptor.c	2005-11-22 10:52:00.000000000 +0100
+++ ./vpnclient/interceptor.c	2006-11-21 09:26:20.420341901 +0100
@@ -8,7 +8,7 @@
 ***************************************************************************
 * This module implements the linux driver.
 ***************************************************************************/
-#include <linux/config.h>
+#include <linux/autoconf.h>
 #include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -550,7 +550,7 @@
         goto exit_gracefully;
     }
 
-    if (skb->ip_summed == CHECKSUM_HW)
+    if (skb->ip_summed == CHECKSUM_COMPLETE)
     {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,7)
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
@@ -554,7 +554,7 @@
     {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,7)
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
-       if (skb_checksum_help(skb,1))
+       if (skb_checksum_help(skb))
 #else
        if (skb_checksum_help(&skb,1))
 #endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
@@ -677,7 +677,7 @@
     tmp_InjectSend = NULL;
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-    if (skb->ip_summed == CHECKSUM_HW)
+    if (skb->ip_summed == CHECKSUM_COMPLETE)
     {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
        if (skb_checksum_help(skb,0))
@@ -680,7 +680,7 @@
     if (skb->ip_summed == CHECKSUM_COMPLETE)
     {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
-       if (skb_checksum_help(skb,0))
+       if (skb_checksum_help(skb))
 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,7)
        if (skb_checksum_help(&skb,0))
 #else
diff -urN ./vpnclient.orig/IPSecDrvOS_linux.c ./vpnclient/IPSecDrvOS_linux.c
--- ./vpnclient.orig/IPSecDrvOS_linux.c	2005-11-22 10:52:00.000000000 +0100
+++ ./vpnclient/IPSecDrvOS_linux.c	2006-11-21 09:26:40.811231143 +0100
@@ -11,7 +11,7 @@
 *   
 *
 ***************************************************************************/
-#include <linux/config.h>
+#include <linux/autoconf.h>
 #include <linux/version.h>
 #include <linux/vmalloc.h>
 #include <linux/sched.h>
diff -urN ./vpnclient.orig/linuxcniapi.c ./vpnclient/linuxcniapi.c
--- ./vpnclient.orig/linuxcniapi.c	2005-11-22 10:52:00.000000000 +0100
+++ ./vpnclient/linuxcniapi.c	2006-11-21 09:26:01.379246739 +0100
@@ -9,7 +9,7 @@
  * This module implements a translation layer between the CNI API and the
  * Linux Interceptor driver.
  ***************************************************************************/
-#include <linux/config.h>
+#include <linux/autoconf.h>
 #include <linux/version.h>
 #include <linux/netdevice.h>
 #include <linux/if.h>